AstroWeb: Optical Telescopes

APS Catalog of POSS I (Univ. Minnesota)
The APS Catalog of the POSS I contains millions of entries for stars and galaxies, and the corresponding Image Database contains their pixels and more. The data behind the Object Catalog and Image Database are generated from digitized Palomar Observatory Sky Survey plates. Object Catalog entries include calibrated magnitudes in two colors, positions to 0.2 arcseconds, confidence measures on neural network image classifications, colors, and various other useful parameters.
Advanced Camera for Surveys (ACS)
The Advanced Camera for Surveys (ACS) will be installed in the Hubble Space Telescope (HST) during a Space Shuttle mission scheduled in 2000. ACS will increase the discovery efficiency of the HST by a factor of ten. ACS will consist of three electronic cameras and a complement of filters and dispersers that detect light from the ultraviolet at 1200 angstroms to the near infrared at 10,000 angstroms.
Air Force Maui Optical Station (AMOS)
Information about the Air Force Maui Optical Station (AMOS), located on Maui, Hawaii. This is a dual-use facility, supporting both US government agencies as well as the civilian community. Assets include visible and IR sensors, and a 3.67 meter telescope under construction.
Andromeda Galaxy and Amplified Pixels Experiment (AGAPE)
AGAPE (Andromeda Galaxy and Amplified Pixels Experiment) is a French collaboration between CNRS (IN2P3 and INSU) and CEA (DSM/DAPNIA) laboratories.
The project is a search for microlensing on unresolved stars of the Andromeda M31 galaxy by MACHOs (baryonic dark matter candidates) of the halo of the Milky Way as well as of the halo of M31.
Anglo-Australian Telescope / Schmidt Telescope Unit (AAT / STU)
Apache Point Observatory
APO is privately owned and operated by the Astrophysical Research Consortium. Located near Sunspot, New Mexico, the observatory consists of a 3.5-meter telescope, the 2.5-meter Sloan Digital Sky Survey telescope, and two smaller telescopes.
Asiago Observatory (Padova)
Automated Telescopes
Links to Automated telescopes on the Internet.
Brown University - Astronomy (Brown)
Lists Faculty, Courses, Brown Observatories, etc.
Brown University - Observatories
Bucknell University Observatory
The CHARA Array will consist of five 1-m aperture telescopes (with an eventual goal of seven) in a Y-shaped array contained within a 400m diameter circle. This configuration will provide high resolution interferometry in the visible spectral region as well as the K spectral band (2.2 micron), with a limiting resolution of 0.2 milliarcsec in the visible.
Cagliari Astronomical Observatory (International Latitude Station)
The Cagliari Astronomical Observatory was established as International Latitude Astronomical Station of Carloforte in 1899, a small town of the sardinian island of S. Pietro. It has been, for about 80 years, one of the five international stations devoted to study the Earth rotation and polar motion. Observations with the zenital telescope were carried out, except in the period of the second world's war. Starting from 1978, the headquarters were moved to Punta Sa Menta, a site 15 km far from Cagliari which has the same latitude of the Carloforte station. (Satellite Laser Ranging, Astrophysics, Planetary Dynamics, Time Laboratory, Data Processing).
Calar Alto Observatory (Centro Astronomico Hispano-Aleman)
The German-Spanish Astronomical Center at Calar Alto is located in the Sierra de Los Filabres in Southern Spain. It operates four telescopes with apertures from 1.2m to 3.5m as well as a Schmidt reflector. A 1.5m-telescope is operated under the control of the Observatory of Madrid.
Cambridge Optical Aperture Synthesis Telescope (COAST)
Canada France Hawaii Telescope (CFHT)
CFHT is a joint facility of the National Research Council of Canada, the Centre National de la Recherche Scientifique of France, and the University of Hawaii. The CFH observatory hosts a world-class, 3.6 meter optical/infrared telescope. The observatory is located atop the summit of Mauna Kea, a 4200 meter, dormant volcano located on the island of Hawaii. The CFH Telescope became operational in 1979.
There is a Mirror copy of the Web site at CDS.
A CFHT page at CADC has information about the CFHT archive, CCDs, proposal template and manuals.
Canada France Hawaii Telescope (ftp) (CFHT)
Canada France Hawaii Telescope - Archive at CADC (CFHT)
All the CFHT data are now being archived since September 18, 1992 and the proprietary period is 2 years. After that time, they become public and are available world wide.
Carnegie Institution Observatories (OCIW)
Carter Observatory
Carter Observatory is the National Observatory of New Zealand.
Catania Astrophysical Observatory (OAC)
Daily solar images (chromosphere and photosphere).
Cecil and Ida Green Piñon Flat Observatory (PFO)
Center for Astronomical Adaptive Optics (CAAO)
The Center's mission is to develop state-of-the-art adaptive optics systems for the many large telescope projects currently under development by Steward Observatory in collaboration with a number of partners worldwide.
Center for High Angular Resolution Astronomy (CHARA)
Cerro Tololo Interamerican Observatory (CTIO)
Cerro Tololo Interamerican Observatory is a complex of astronomical telescopes and instruments located approximately 80 km to the East of La Serena, Chile at an altitude of 2200 Meters.
CTIO is operated by the Association of Universities for Research in Astronomy Inc. (AURA), under a cooperative agreement with the National Science Foundation as part of the National Optical Astronomy Observatories.
Climenhaga Observatory
Copenhagen University Observatory
Curtis Schmidt Telescope
The Curtis Schmidt telescope is a 0.61/.91 meter diameter Schmidt telescope located at the Cerro Tololo InterAmerican Observatory, about 500 km north of Santiago, Chile. This telescope was originally installed at the University of Michigan's Portage Lake Observatory in 1950, and moved to the much clearer skies of north central Chile in 1966. Two thirds of the time on this telescope is available to US and Chilean astronomers, with the remaining one third reserved for astronomers from the Dept. of Astronomy at the University of Michigan.
DEep Near Infrared Survey of the Southern Sky (DENIS - Leiden)
DENIS will be a complete deep near infrared survey of the southern sky, with the objective to provide full coverage in 2 near infrared bands (J at 1.25 micron and K at 2.2 micron) and one optical band (I at 0.8 micron), using a ground-based telescope and digital array detectors. The products of this survey will be databases of calibrated images, extended sources, and small objects. In addition catalogs of small and extended sources will be produced. We expect the survey to be completed within five years; restricted access to the databases is possible during the second half of the survey. The production of catalogs (to be distributed) will take a few additional years.
DIRECT Project (Determining the distances to nearby galaxies)
We undertook a long term project, DIRECT, to obtain the direct distances to two important galaxies in the cosmological distance ladder -- M31 and M33, using detached eclipsing binaries (DEBs) and Cepheids.
Danish telescopes around the world
David Dunlap Observatory, University of Toronto (DDO)
The David Dunlap Observatory is located in Richmond Hill, Canada. As part of the University of Toronto's Department of Astronomy it operates optical telescopes for research, the largest being a 1.88m telescope. DDO is also a centre for student training and public education.
Delta Scuti Star Network and Whole Earth Telescope
The Delta Scuti Star Network and Whole Earth Telescope are both collaborations of astronomers all around the world, who observe short period variable stars.
Digital Sky Survey (DSS)
The Digitized Sky Survey comprises a set of all-sky photographic surveys in E, V, J, R, and N bands conducted with the Palomar and UK Schmidt telescopes. The Catalogs and Surveys Branch (CASB) is digitizing the photographic plates to support HST observing programs but also as a service to the astronomical community.
Images of any part of the sky may be extracted from the DSS, in either FITS or GIF format.
Digitized Sky Survey at LEDAS
This service provides access to digitized optical Schmidt plates forming the STScI Digitized Sky Survey (DSS). The DSS is particularly useful in producing finding charts. Users are able to tailor the size of the output image (from 17" to 1°) to suit their particular needs.
Dominion Astrophysical Observatory (DAO)
The DAO is operated by the National Research Council of Canada (NRC) through its Herzberg Institute of Astrophysics (HIA) as a national centre for astronomical research within Canada, with emphasis on UV, optical and IR astronomy. The Canadian Astronomy Data Centre (CADC) is a group within the DAO which is responsible for the Canadian archive of data from the Hubble Space Telescope as well the archive of data from the Canada France Hawaii Telescope. DAO's Facilty Manual is now online.
ESO Bulletin Board
Midas; Computer; Info; Garching; La Silla; Sest; Pinboard
ESO-MIDAS Users Guide (Overview)
ESO-MIDAS is the acronym for the European Southern Observatory - Munich Image Data Analysis System which is developed and maintained by the European Southern Observatory. The MIDAS system provides general tools for image processing and data reduction with emphasis on astronomical applications including imaging and special reduction packages for ESO instrumentation at La Silla. Volume A describes the basic MIDAS system with all general purpose facilities such as MIDAS Control Language, all available commands, data input/output (including plotting and image display), table system (MIDAS Data Base). Site specific features are given in an appendix. Volume B describes how to use the MIDAS system for astronomical data reduction. Application packages for special types of data or reductions (e.g., long slit and echelle spectra, object search, or crowded field photometry) are discussed assuming intensity calibrated data. A set of appendices gives a detailed description of the reduction of raw data from ESO instruments. Volume C gives the detailed description for all commands available. This volume is not available to remote users as the complete volume as it is accessed via the MIDAS GUI XHelp.
Estacion Astronomica Rio Grande (EARG)
European Southern Observatory (ESO)
ESO, the European Southern Observatory, is a multinational organisation of eight European member states. It operates astronomical observatories in Chile and has its headquarters in Munich, Germany.
European Southern Observatory - Munich Image Data Analysis System (ESO-MIDAS)
The European Southern Observatory, established in 1962, operates astronomical observatories at La Silla (600 km north of Santiago de Chile) and at Paranal (130 km south of Antofagasta). ESO's headquarters are in Garching, just north of Munich, Germany. ESO is supported by: Belgium, Denmark, France, Germany, Italy, The Netherlands, Sweden and Switzerland. In Europe and in Chile, ESO has a combined scientific, technical, adminstrative and visiting staff of around 400.
Gemini 8m Telescopes (Gemini)
The Gemini 8m Telescopes Project is an international project to build two infrared-optimized telescopes. One telescope will be located on Mauna Kea, Hawaii; the other will be on Cerro Pachon, Chile.
Georgia State University - Astronomy (GSU)
CHARA = Center for High Angular Resolution Astronomy
Earth Satellite Ephemeris Service for brighter earth satellites.
Grove Creek Observatory, Australia (GCO)
Grove Creek Observatory in NSW Australia, specializes in CCD imaging and research. Accomodation available for visiting amateur astronomers.
Guillermo Haro Observatory (Cananea, Mexico)
HST status
WAIS index to daily activity / instrument status information for the NASA/ESA Hubble Space Telescope (HST). Files hst_status_* in stsci/hst_news directory on STEIS are indexed.
Hard Labor Creek Observatory (HLCO)
Harvard-Smithsonian Center for Astrophysics (CFA)
The CfA combines the resources and research facilities of the Smithsonian Astrophysical Observatory and the Harvard College Observatory under a single director to pursue studies of those basic physical processes that determine the nature and evolution of the universe. The CfA operates the Whipple Observatory in Amado, Arizona, and the Oak Ridge Observatory in Harvard, Massachusetts. There is also a Theory Group ).
Herzberg Institute of Astrophysics (HIA)
The Herzberg Institute of Astrophysics (HIA)is the scientific institute within the National Research Council of Canada which is responsible for operating Canadian observatories. Subdivisions and related facilities of HIA include: the DAO, DRAO, JCMT, CFHT, CADC, Gemini, and Solar Terrestrial Physics.
Hipparcos space astrometry mission: Professionals, amateurs, and educators in astronomer should be interested in the (updated) Hipparcos astrometry mission www page, maintained by ESA. The monumental Hipparcos and Tycho star catalogues, with stellar positions, distances, and proper motions, double star data, and photometry (including thousands of light curves) was completed in June 1997. The 17-volume publication (including 6 ASCII CD-ROMs) can be ordered via the www page; the main catalogues can also be searched on-line, by object or sky region, with hyperlinks to the principal annexes. An "Educational Page" offers some ideas for observational projects for amateurs or for student projects, with the facility to search for the periods of variable stars interactively.
Hitachi Instruments
Hitachi Instruments, Inc. is a manufacturer and provider of high efficiency diffraction gratings. We offer both standard catalog components and custom made to order items.
Hubble Heritage Project
A striking astronomical image, created by the Hubble Heritage team, is released at this site the first Thursday of every month. As well as creating color images from the exposures in the Hubble Telescope Data Archive, this project has voting events for choosing observing targets at this website.
Hubble Space Telescope - pictures
Publicly released images from post-servicing observations by Hubble Space Telescope. The images in this directory are in GIF format which supports up to 256 colors (8-bits). They include 30 Doradus, 47 Tucanae, Comet 1993e, Eta Carinae, Mars, M31, M87, M100, NGC1068, NGC2440, NGC6624, NGC7252, Nova Cygni, Orion (incl. animation), QSO1220+204, the Saturn storm, SL-9, SN1987A (with rings), and SN1994I. The images have originally been made available by the Office of Public Outreach of the Space Telescope Science Institute.
Hubble Space Telescope Astrometry Science Team
See how astrometry, one of the oldest branches of astronomy, uses the Hubble Space Telescope, one of the newest tools of astronomy. Interrogate our home page to find out what we do, who we are, and what we've done. Look over our shoulder as we search for planets around a nearby star. We use the Fine Guidance Sensors aboard the Hubble Space Telescope (HST) to measure star positions, study binary stars and study stellar motions. Primarily, stellar positions yield parallaxes which provide information on distance. The distances to nearby stars calibrate the entire astronomical distance scale. Monitoring star position may reveal previously unseen companions. We search for planets near Proxima Centauri and Barnard's Star. We also work to tie the HIPPARCOS reference frame to an extragalactic (non-rotating) reference frame. We study binary stars unresolvable using ground-based techniques. We inspect stars to determine whether or not they are binary. We use the Planetary Camera to obtain images of stars in globular clusters. The precision with which we can measure positions is so high, that after 3-5 years a second image will show motions of stars in clusters 6 kpc distant.
Hubble Space Telescope picture gallery
a mousable sequence of press release photographs taken by the NASA/ESA Hubble Space Telescope (HST).
Hubble Space Telescope public images and other information
images, movies and animations from some of the observations by the NASA/ESA Hubble Space Telescope (HST). They are made available by the Office of Public Outreach of the Space Telescope Science Institute. See also: TIFFs & GIFs ( Levay), ExInEd (Macs-only)
IAC / Observatorio Roque de los Muchachos
IAC / Observatorio del Teide
Information Bulletin on Variable Stars (IBVS)
The Information Bulletin on Variable Stars is a bulletin of the Commissions 27 and 42 of the International Astronomical Union, published by Konkoly Observatory, Budapest, Hungary.
Infra-Red Telescope Facility (IRTF)
The IRTF is a 3.0 meter telescope optimized for use in the infrared. It was first built to support the Voyager missions to Jupiter. It is now the National facility for infrared astronomy providing continued support to planetary and deep space applications.
Also contains an Anonymous FTP site: Manuals, Forms, Instrument information, Software tools.
Infrared and Optical Telescope Array (IOTA)
Institut d'Astrophysique Spatiale: French ISO Center
Space Astrophysics Institute (IAS), Orsay, hosts the French center for ESA's Infrared Observatory (ISO) [text in French].
Instituto Nacional de Astrofísica, Óptica y Electrónica. Astrophysics Department (INAOE, Mexico)
Information on the Large Millimeter Telescope an about the Cananea observatory
Instituto de Astrofisica de Canarias Planetary Nebula Research Group (IAC PN Group)
Members of the group; Research projects; Publications; Meetings
Interferometry Center of Excellence (ICE, JPL)
The Interferometry Center of Excellence (ICE), at JPL, has been established to ensure the development and maintenance of a leading edge capability in optical and near-infrared interferometric astrometry and imaging.
Internet Amateur Astronomers Catalog / Archive (IAAC, netastrocatalog)
A mailing list and Web archive dedicated to saving the deep-sky observations of amateur astronomers, with the widest possible range of experience, instrumentation, and conditions. Protocol for submitting observations is for one object or object group at a time, with observing instrument and object name both mentiond in the Subject:. To subscribe, send an email message with the text "subscribe netastrocatalog" in the body to the address: "". To access the Web archive:
Iowa Robotic Telescopes Facilities (IRTF)
The University of Iowa Physics and Astronomy Department maintains these pages as a guide to our suite of robotic, autonomous tasking telescopes. In addition to using these instruments for teaching and faculty and student research, limited observing time is made available to anyone with an interest in Astronomy and a valid observing request.
Isaac Newton Group - La Palma (ING)
The Issac Newton Group consists of three telescopes, the 4.2 metre William Herschel Telescope, the 2.5 metre Isaac Newton Telescope, and the 1 metre Jacobus Kapteyn Telescope. They are situated at the Observatorio del Roque de los Muchachos, on the island of La Palma in the Canary Islands, and are operated by the Royal Observatories of the UK. This resource contains documentation for many of the major instruments, details of how to apply for time, brief descriptions of the telescopes, details and status of the service programme, current telescope schedules, weather information for La Palma, and pointers to other institutions which share the site.
The site is mirrored at for faster access to UK users.
Joint Astronomy Centre (Hilo, Hawaii)
The Joint Astronomy Centre incorporates the 15m James Clerk Maxwell Telescope (JCMT) and the 3.8m United Kingdom Infrared Telescope (UKIRT) on the 4200m summit of Mauna Kea along with the Centre's Hawaii headquarters in Hilo. The facility is operated by the Royal Observatory, Edinburgh on behalf of the Science and Engineering Research Council of the United Kingdom, the Nederlandse Organisatie Voor Wetenschappelijk Onderzoek and the National Research Council of Canada.
Keck Observatory (CalTech)
Kirkwood Observatory
Kitt Peak National Observatory (KPNO)
There is also an anonymous ftp
Konkoly Observatory
The Konkoly Observatory of the Hungarian Academy of Sciences has evolved from the private observatory of Miklos Konkoly-Thege. Konkoly founded his observatory in 1871 in Ogyalla. Twenty-nine years later he donated the telescopes and instruments to the Hungarian state. The construction of Piszkesteto Mountain Station started in 1958. Three telescopes currently operate there: a 60/90 cm Schmidt (since 1962), a 50 cm Cassegrain (since 1966) and an 1 m RCC (since 1974).
Kuiper Airborne Observatory (KAO)
LBT Telescope
The Large Binocular Telescope (LBT) is a collaboration between the University of Arizona, the Italian astronomical community, which is represented by the Arcetri Astrophysical Observatory in Florence, and the Research Corporation in Tucson. The goal of the LBT project is to construct a binocular telescope consisting of two 8.4-meter mirrors on a common mount. This telescope will be equivalent in light-gathering power to a single 11.8-meter instrument. Because of its binocular arrangement, the telescope will have a resolving power (ultimate image sharpness) corresponding to a 23-meter telescope.
La Silla - ESO Facilities
Lake Afton Public Observatory
Leeds University - Astrophysics Group
Within the Department of Physics at Leeds University are three research groups that work in Astronomy related areas. The Optical Astronomy group is mainly interested in globular clusters and CCD photometry. The Haverah Park group studies high energy cosmic rays by various techniques. The Whipple group is attempting to detect gamma rays with energies > 1TeV using air-Cherenkov detectors.
Leiden Observatory
INACTIVE LINK ? - 13 --- Loiano Telescopes - Bologna
Lowell Observatory
MACHO project
The MACHO project is searching for dark matter in the form of Massive Compact Halo Objects (MACHOs) using gravitational microlensing. We search for these events by monitoring over 10 million stars every night in the LMC and Galactic bulge, using the dedicated 50-inch telescope at Mt. Stromlo.
MDM Observatory (MDM Observatory)
MDM Observatory was founded by the University of Michigan, Dartmouth College, and the Massachusetts Institute of Technology. Current operating partners include Michigan, Dartmouth, MIT, Ohio State University, and Columbia University. The Observatory is located on the southwest ridge of the Kitt Peak National Observatory near Tucson, AZ. It operates two telescopes: the 2.4-m Hiltner telescope and the 1.3-m McGraw-Hill telescope.
MONOPTEC's Fixed Shutter Dome (FSD)
MONOPTEC licenses the Fixed Shutter Dome, an enabling technology in observatory enclosures and satellite laser ranging systems. Four FSD's now reside in Tokyo, Japan, as part of the Keystone Project.
Magnetic Classification Values of sunspots (after Malde)
Worldwide network; observations of sunspots; classifying to Zurich/McIntosh-system; generating values=Classification Values after Malde (established in 1981; published in german mag. "vdS-SONNE").
Mauna Kea Observatories
Max-Planck-Institut fr Astronomie (MPIA, Heidelberg)
The MPIA operates the Calar Alto Observatory as well as conducting research in different areas of astronomy and astrophysics including star formation, extragalactic objects, astrophysical theory, and instrumentation development.
McDonald Observatory (University of Texas, Austin)
McDonald Observatory is located 450 miles west of Austin, Texas, in the Davis Mountains. At present, there are three operating telescopes: 2.7-meter, 2.1-meter, and .76-meter reflectors. The Observatory is equipped with a wide range of state-of-the-art instrumentation for imaging and spectroscopy in the optical and infrared, and it boasts one of the first and most productive lunar ranging stations.
Microvariability and Oscillations of Stars (MOST)
MOST is Canada's first space science microsatellite and its first optical space telescope project, aiming for launch in late 2001. MOST is designed to measure (as its acronym implies) Microvariability & Oscillations of STars in broadband light with a precision of a few micromagnitudes over timescales from minutes to days. The resulting eigenfrequency data will be used primarily for stellar seismology, to probe the structure and ages of Sun-like stars, magnetic stars, Wolf-Rayet stars and halo subdwarfs. The subdwarfs are expected to yield age estimates which would place a meaningful lower limit on the age of the Universe. MOST should also be capable of confirming the presence of giant extrasolar planets identified in Doppler surveys.
Mississippi State University - Department of Physics and Astronomy
The Physics and Astronomy Department home page contains information about faculty, students, and departmental facilities. Research information and information about the University's Howell Observatory is also available.
Mississippi State University - Howell Observatory
Mount Evans Meyer-Womble Observatory (Denver Univ.)
Mt.Evans Meyer-Womble Observatory, elev. 4,303 meters, in the Colorado Rockies. Dual 0.7 meter R-C telescopes, optical and mid-infrared instrumentation. Summer access. Collaborations invited.
Mount Laguna Observatory
Mount Stromlo & Siding Spring Observatories - Australian National University (MSSSO)
Includes the Australian AstroWeb site, and an Anonymous ftp server.
Mount Suhora Observatory (Cracow Pedagogical University)
The Mt.Suhora Observatory is a part of Astronomy Department at the Pedagogical University in Cracow, Poland. It is located in Gorce mountain, near Koninki village, 60 km south-east of Cracow.
The scientific staff of 9 people works on photometry of variable stars.
Mount Wilson Observatory
The mountain is host to several ongoing observing projects using the onsite facilities. The observatory has two primary nighttime telescopes: the 60-inch telescope, built in 1908 is home to the HK Project and the Atmospheric Compensation Experiment; and the 100-inch (Hooker) telescope, built in 1917, which is available to the scientific community. Two solar observatories, the 60-foot tower telescope (operated by USC), and the 150-foot tower telescope (operated by UCLA) maintain long-term exploration of the magnetic activity behavior of the Sun. There are also two interferometers onsite: the Infrared Spatial Interferometer (ISI, operated by U.C. Berkeley), and the NRL Optical Interferometer. The Telescopes in Education (TIE) Project operates a 24" telescope, as well as the Snow Solar Telescope (built in 1904). Finally, a fully-robotic 32-inch Automatic Photoeletric Telescope (APT) is operated by Tennessee State University.
Multimission Archive at STScI (MAST)
The Multimission Archive at STScI is being developed to support a variety of astronomical data archives, with the primary focus on scientifically related data sets in the optical, ultraviolet, and near-infrared parts of the spectrum.
Multiple Mirror Telescope Observatory (1) (MMTO)
Multiple Mirror Telescope Observatory (2) (MMTO)
Multiwavelength Milky Way
Images of the Milky Way galaxy in the light of several spectral lines and continuum bands, spanning the electromagnetic spectrum from radio to high-energy gamma-ray, are presented. The display is interactive, allowing zooming and panning of the images, each of which covers the entire sky within ten degrees of the Galactic plane. Explanatory text and links to the data sources and references are included. The Multiwavelength Milky Way site is an educational service of the Astrophysics Data Facility at NASA Goddard Space Flight Center.
Munich Image Data Analysis System (FTP) (ESO-MIDAS)
This directory contains: README = This file; 9NNOV = Subdirectory containing the 9NNOV release of MIDAS (only packages, patches and documentation); courier = Directory containing the compressed postscript files of the newsletter: MIDAS Courier.; calib = Directory with the ESO calibration files for MIDAS.; linux = Directory containing binary versions of MIDAS for PC/Linux.
WAIS index to abstracts from NASA's Selected Current Space Aeronautics (SCAN) abstract service
NASA Shuttle flights - pictures
Pretty pictures from many NASA Shuttle flights, including STS-61 in December 1993 to service the NASA/ESA Hubble Space Telescope (HST). The images in this directory are mirrored from the site at:
NFO's Automatic Radio Linked Telescope
Observatory associated with Western New Mexico University in Silver City, NM (USA).
National Astronomical Observatory of Spain (OAN)
OAN is a 200 year old institution devoted to research in astronomy that operates several observatories. The Yebes Observatory is the site of a mm-wave 14m telescope devoted to spectroscopy and VLBI. A 1.5m optical telescope is located at the Calar Alto Observatory. The OAN is also the Spanish partner of IRAM, which runs a 30m mm-wave telescope and a 5x15m mm-wave interferometer.
National Laboratory for Astrophysics (LNA, Brazil)
LNA is an Institute of the National Council for Scientific and Technological Development (CNPq). At present, LNA supports 3 telescopes: the 1.6-m Ritchey-Chretien and coudé, the 0.6-m Cassegrain and the 0.6-m telescope of the University of São Paulo.
National Optical Astronomy Observatories (NOAO)
catalogs, NSO, CTIO, KPNO
National Undergraduate Research Observatory (NURO)
The National Undergraduate Research Observatory (NURO) at Lowell Observatory and Northern Arizona University is a 0.8m telescope located on Anderson Mesa south of Flagstaff, Arizona. NURO is a consortium of Universities and small colleges to provide a research grade telescope for undergraduate research and education.
New England Light Pollution Advisory Group (NELPAG)
Information concerning improved outdoor lighting to reduce glare and obtrusive light.
Nordic Optical Telescope (NOT, La Palma)
Oak Ridge Observatory
Observatoire de Haute-Provence (OHP)
The Observatoire de Haute-Provence (OHP) is an optical observatory in southeast France offering small and medium-sized observing facilities to astronomers in France, Europe and abroad. Includes information about instruments and user manuals.
Observatoire du Mont Mégantic (OMM)
[in French]
Observatorio Astronomico de La Plata (OALP)
Faculty of Astronomical and Geophysical Sciences. The Observatory was established in November 1883. Its principal tasks are research and teaching in Astronomy and Geophysics.
Observatorio Astronómico Nacional
The Observatorio Astronómico Nacional (OAN) operates 3 telescopes (2.1m, 1.5m, and 0.84m) up in the mountains of the Sierra San Pedro Martir of Baja California. The observatory offices and workshops are located in Ensenada, B.C. overlooking the Pacific ocean. OAN is a part of the Instituto de Astronomía of the Universidad Nacional Autónoma de México.
Observatorium Hoher List (Bonn)
Observatório Nacional, Brazil (Rio de Janeiro)
[in Portuguese]
Optical Correctors for Liquid Mirror Telescopes
One of the often cited limitations of liquid mirror telescopes pertains to the small region of sky which they can observe. Because the aberrations of a parabola increase rapidly with field angle, classical corrector designs cannot yield subarcsecond images for angles significantly greater than one degree. To access larger fields, innovative corrector designs must be explored.
In these pages we discuss the Optical Design and Testing of a family of two-mirror correctors to compensate the aberrations of a fixed parabolic mirror observing at a large angle from the zenith.
Osservatorio Astronomico di Brera/Merate (OAB)
The Osservatorio di Brera, first settled in Milan 1786, is now split in the two sites of Brera-Milano (hosting a small historical museum with the original Schiaparelli telescope) and Merate (with a park and three domes still operating). Optical and X-ray astronomy and instrumentation are the major topics studied by people in the OAB.
Osservatorio Astronomico di Trieste (OAT)
OAT Activities include: Physics of the sun and of the solar system, Physics of the stars, the interstellar medium and of the galaxy, Extragalactic astrophysics and cosmology, Astronomical technologies, and Space astronomy.
Padova Astronomical Observatory
Palomar Observatory (CalTech)
Perugia University Astronomical Observatory
Articles, data, researches, and new developments at Perugia University Astronomical Observatory.
Poznan Observatory (A. Mickiewicz University)
Information on the staff and research activities.
REACT Optical Gamma-Ray Burst Follow-up Network
REACT is a consortium of optical telescopes that have agreed to work together toward a common goal of comprehensive, multiwavelength study of gamma-ray burst afterglows.
Remote Access Astronomy Project (RAAP)
The Remote Access Astronomy Project. The RAAP is an educational outreach program that promotes interest in science through providing astronomy educational resources. These include a series of digital image processing exercises to teach a variety of physical concepts as well as access to our computer controlled telescope allowing motivated students design and carry out their own experiments.
Robotic Lunar Observatory (ROLO)
The Robotic Lunar Observatory (ROLO) is dedicated to studying one of the remaining unknowns of the Moon: what is its precise brightness? ROLO is currently part of the NASA Earth Observing Spacecraft Mission. The concept of the project is that the Moon will be observed repeatedly, and data gathered, so that we can predict the brightness of the Moon to better than two percent. Then, spacecraft orbiting the Earth can look at the Moon as part of a calibration sequence to get an absolute brightness reference.
Robotic Optical Transient Search Experiment (ROTSE)
ROTSE is an experimental program to search for astrophysical optical transients on time scales of a fraction of a second to a few hours. This is an area of astronomical science that has been relatively unexplored until now. The primary incentive for this research is to find the optical counterparts of gamma-ray bursts (GRBs). Two sets of instruments are now under construction: ROTSE-I, a 4-fold camera array using telephoto lenses to cover a 16 degree by 16 degree field of view and ROTSE-II, a pair of 0.45 meter aperture telescopes to cover a 2 degree by 2 degree field of view. The expected sensitivities of these two systems is expected to be m_v ~ 15 and 18 respectively.
SAO (Smithsonian Astrophysical Observatory) (FTP)
STSDAS help system index
WAIS index of all help files for STSDAS, the Space Telescope Science Data Analysis System, developed at the Space Telescope Science Institute, Baltimore, MD, for the NASA/ESA Hubble Space Telescope.
STSDAS source code
WAIS index of all spp (Subset Preprocessor) source code of STSDAS (Space Telescope Science Data Analysis System), developed at the Space Telescope Science Institute, Baltimore, MD, for the NASA/ESA Hubble Space Telescope.
Schmidt telescope at Observatoire de la Cote d'Azur
The Telescope is located at the "Observatoire de Calern", above the city of Grasse.
Equipped with a 2K CCD camera, it is mainly used for the OCA-DLR Asteroid Survey program. It is also used for geostationnaary Space Debris detection and GRB optical counterparts follow ups.
Schwäbischen Sternwarte
The Swabian Observatory was founded in 1919. It is a non-profit-making organisation. Since January 8th 1922 we operate an observatory located on a hill in Stuttgart. The focal point of our astronomical work is the observation of occultations of stars by the moon, the planets and their satellites, asteroids and also mutual events. We measure the occultation timings with video and photoelectric equipment up to 10.5 mag with an accuracy of +/-0.01s and up to 13.5 mag with an accuracy of +/-0.1s. We send our results to IOTA, EAON, BAA and ILOC. Sometimes we make an excursion to observe grazing events with our transportable telescopes, for example a Meade 2080HTC. Another main emphasis is the observation of variable stars, mainly Mira type stars. Normally we measure stars up to 15mag. At the moment we are beginning to observe variable stars with the CCD camera ST-6. We send our results to AAVSO, AFOEV and BAV. [in German]
Sloan Digital Sky Survey (SDSS at Fermilab)
  1. In the pi steradians of the available North Galactic Pole (b > 30 degrees), we shall conduct surveys in the following manner: Obtain a photometric survey, in four or five filters to 23rd magnitude (R), 5 sigma, for stellar objects; obtain redshifts for all galaxies down to 19th magnitude (B); obtain redshifts for all QSOs down to 20th magnitude (B).
  2. In the available South Galactic Pole region there will be a deeper survey in a strip 2 degrees (dec) by 50 degrees, in order to: obtain a photometric survey, in four or five filters to 25th magnitude (R), 5 sigma, for stellar objects; obtain redshifts for all galaxies down to 20th magnitude (B); obtain redshifts for all QSOs down to 21st magnitude (B).
  3. In the additional available sky covering the Galactic disk, a deep photometric survey will be conducted on a best effort basis to 23rd magnitude (R), 5 sigma.
Smithsonian Astrophysical Observatory (1) (SAO)
Smithsonian Astrophysical Observatory (2) (SAO)
Includes: AXAF Science Center (ASC) . Anonymous ftp
South African Astronomical Observatory (SAAO)
The South African Astronomical Observatory (SAAO) is the National Facility for optical/infrared astronomy in South Africa. Its prime function is to further fundamental research in astronomy and astrophysics at a national and international level through the provision and use of a world-class astronomical facility.
Special Astrophysical Observatory of Russian Academy of Sciences (SAO RAS)
SAO is Russia's main centre for ground-based space research. The Observatory is located in the South of Russia, in the Caucasus mountains of Karachaevo-Cherkesia. The basic instruments of the Observatory are the 6-meter optical telescope BTA (Big Alt-azimuth Telescope) and the 600-meter radio telescope RATAN-600.
Stephen F. Austin State University Observatory (SFASU)
Facilities, research, and personnel of the SFASU Observatory.
Steward Observatory
The Steward Observatory Home Page provides information on the academic and research activities of the University of Arizona Department of Astronomy as well as information on the facilities of Steward Observatory.
Stratospheric Observatory For Infrared Astronomy (SOFIA)
The Stratospheric Observatory For Infrared Astronomy (SOFIA) will be a 2.5 meter, optical/infrared/sub-millimeter telescope mounted in a Boeing 747, to be used for many basic astronomical observations performed at stratospheric altitudes. The Facility will accommodate installation of different focal plane instruments, with in-flight accessibility, provided by investigators selected from the international science community. The Facility objective is to have an operational lifetime in excess of 20 years.
Subaru Telescope at Hilo (NAOJ)
The SUBARU is an 8.3-m diameter new-generation telescope being constructed and to be operated by the National Astronomical Observatory, under the Ministry of Education of Japan.
SuperCOSMOS is the Royal Observatory Edinburgh's advanced photographic plate digitising machine. It succeeds COSMOS which was in operation at the ROE until December 1993, and is 10 times more powerful than its predecessor.
Telescopio Nazionale Galileo - Italian National Telescope Galileo (TNG, La Palma)
The Telescopio Nazionale Galileo is the national facility of the Italian astronomical community, set in the Canary island of La Palma (Spain). The Astronomical Observatory of Padova had the responsibility of its construction through the TNG Project Office.
The Amateur Sky Survey (TASS)
The TASS project has constructed low-cost drift-scan cameras and distributed them to sites around the world. The goal is to monitor bright objects across a large section of the sky.
Thueringer Landessternwarte Tautenburg (TLS)
The observatory is running a 2m telescope which can be used in three different optical configurations: Schmidt telescope Cassegrain telescope Coude telescope
UK Infra-Red Telescope (UKIRT)
UMASS Astronomy Image Library
A library of optical, near infrared, IRAS, and mm radio images of astronomical objects of special interest to the UMass Astronomy group. This library includes the hyperlinked tour of the Lynds 1641 molecular cloud in Orion, and a library of images of molecular line maps of star formation regions studied at FCRAO.
University College London - Department of Physics and Astronomy
University of Bradford - Robotic Telescope
The engineering in astronomy Team in the Department of Industrial Technology are currently working on low-cost fully-robotic telescopes.
University of British Columbia - Department of Physics and Astronomy (Astro@UBC)
These are the pages for the astronomy group in the larger Physics and Astronomy Department at UBC located in Vancouver, Canada. Information on both research and educational activities is available.
University of California Observatories - Lick Observatory (WWW) (UCO/Lick)
Lick Observatory Anonymous ftp
University of California, San Diego - Center for Astrophysics and Space Sciences (UCSD - CASS)
The Center for Astrophysics and Space Sciences at UC San Diego is the birthplace of the multi-channel Digicon photon detectors. Four of these are used on two instruments, the UCSD Faint Object Spectrometer (FOS), and the Goddard High Resolution Spectrometer (GHRS), on the Hubble Space Telescope (HST). Available at this site is information relating to the activities, facilities, and personnel at CASS. The Faint Object Spectrograph group, its history, and related areas of research are described in detail.
University of California, Santa Barbara - Astrophysics Group (UCSB)
University of Denver Astronomy
Mt.Evans Meyer-Womble Observatory located at 14,124 feet above sea level, on Mt.Evans in the Front Range of Colorado, used for infrared astronomy research.
University of Georgia, Dept of Physics and Astronomy
Astronomy at UGA
University of Hawaii - Institute for Astronomy (UH - IfA)
University of Hawaii IfA: 2.2m Telescope
University of Hawaii, Hilo - Department of Physics and Astronomy (UH, Hilo)
University of Manchester - Astronomy Group
Available are contact details, research interests of the group members, preprints and publications, course details, a frequently updated collection of links to items of interest to astronomers.
University of Oregon - Pine Mountain Observatory
University of Texas, Austin - Department of Astronomy
University of Toronto Southern Observatory (UTSO)
UTSO operates the 60cm Helen Sawyer Hogg Telescope located on Cerro Las Campanas in north-central Chile. This homepage provides information useful to potential users and others interested in our facility.
Uppsala Astronomical Observatory
The WWW-server contains information about research activities etc, at the astronomical observatory at Uppsala University.
VLT Survey Telescope (VST)
The VST project is a cooperation between the European Southern Observatory (ESO) and the Capodimonte Astronomical Observatory (OAC) for the study, design and construction of a wide field alt-az telescope of 2.6 m aperture, specialized for high quality astronomical imaging to be installed and operated on Cerro Paranal, next to ESO's Very Large Telescope (VLT).
Very Large Telescope Project (VLT, ESO)
ESO is building what will be the World's largest optical telescope array, The Very Large telescope (VLT).
The ESO Very Large Telescope will consist of four 8-meter telescopes which can work independently or in combined mode. In this latter mode the VLT provides the total light collecting power of a 16 meter single telescope, making it the largest optical telescope in the world. The four 8-m telescopes supplemented with 3 auxilliary 1 m telescopes may also be used in interferometric mode providing high angular resolution imaging. The useful wavelength range extends from the near UV up to 25 microns in the infrared.
WIYN, from Indiana University
Warren Rupp Observatory (wro)
Astronomical Research, Digital Imaging, Comet Search, Planetary observation, Deep sky photography, Education. 31" F7 Telescope with computer drive in 35ft dome. Lots of nice facilities. CCD stuff, Chemical photography. Free access to qualified student, university, profesionals and amateurs.
Warsaw University - Astronomical Observatory
Contains general information about our Observatory and the most up-to-date information on the Optical Gravitational Lensing Experiment (OGLE) -- a long-term, large scale photometric search for dark matter in our Galaxy using microlensing phenomena.
Warsaw University - Optical Gravitational Lensing Experiment (OGLE)
The server contains general information about our Observatory and the most up-to-date information on the Optical Gravitational Lensing Experiment (OGLE) -- a long-term, large scale photometric search for dark matter in our Galaxy using microlensing phenomena. Information on the side projects conducted parallely to the main search are also there.
Wesleyan University - Astronomy Program
The Department of Astronomy at Wesleyan University offers both BA and MA degrees in astronomy. We include, here, information on coursework, current faculty research, recent faculty and student preprints and on-going observing programs at Van Vleck Observatory including an extensive Catalog of Photometry of T Tauri Stars
Whately Telescope
Whipple Observatory (FLWO)
Whole Earth Blazar Telescope (WEB)
The WEB Telescope (WEBT) is a network of optical observers who in concert have the capability to obtain continuous, high-temporal-density, optical monitoring of blazars.
Whole Earth Telescope (WET)
In 1986, astronomers from the University of Texas established a world--wide network of cooperating astronomical observatories to obtain uninterrupted time--series measurements of variable stars. The technological goal was to resolve the multi-periodic oscillations observed in these objects into their individual components; the scientific goal was to construct accurate theoretical models of the target objects, constrained by their observed behavior, from which their fundamental astrophysical parameters could be derived. This approach has been extremely successful, and has placed the fledgling science of stellar seismology at the forefront of stellar astrophysics.
Wide-Field Astronomy (The New Era of)
The New Era of Wide-Field Astronomy : A Conference to be held in Preston (England), 21 - 24 August 2000.
We are at the beginning of a new era in wide-field astronomy, with major new surveys now in production, and with new telescopes and instruments, both ground- and space-based, scheduled to be in production in the next few years. This conference aims to review the present and future of this exciting new era of wide-field astronomy, and to discuss the optimum exploitation of the remarkable range of new facilities. The conference will cover all aspects of the new era - cosmology and both extragalactic and galactic astronomy, from X-ray to radio.
Wisconsin H-Alpha Mapper (WHAM)
The Wisconsin H-Alpha Mapper will produce a survey of H-Alpha emission from the interstellar medium (ISM) over the entire northern sky. The instrument combines a 24-inch telescope and a high-resolution, 6-inch Fabry-Perot spectrometer to achieve 8-12 km/s velocity resolution in one-degree beams on the sky. By utilizing CCD technology, we hope to attain a sensitivity level of 0.01 Rayleighs. This survey, the first of ionized hydrogen in our galaxy, will be used to explore the spatial and kinematic structure of the warm ionized component of the ISM. WHAM is currently at Pine Bluff Observatory but will move to Kitt Peak, Arizona in the Fall of 1996 for the survey, which should take about 2 years.
Wyoming Infrared Observatory (WIRO)
Yerkes Observatory (University of Chicago)
Yerkes Observatory in Williams Bay Wisconsin hosts the 40" refractor, a 41" reflector, a 24" Boller & Chivens reflector, a 10" educational telescope, and support facilities. The 41" telescope is used for research including adaptive optics studies.

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