SFASU Observatory
- General information, public viewing sessions information, free star charts, images, courses, and facility, equipment and instrumentation information.
- http://www.physics.sfasu.edu/observatory/obs.htm

The Roseland Observatory
- News, articles, events, classified, gallery, and observations and logs.
- http://freespace.virgin.net/brian.sheen/default.htm

The Campus Teaching Observatory
- History, activities, future plans, facilities and equipment information, public nights and schedules, and location.
- http://astro.ufl.edu/Teachobs.html

Mount Graham International Observatory
- Mission, visitor information, events, services, equipment and instrumentation information, and images.
- http://mgpc3.as.arizona.edu/

University of Toronto Southern Observatory
- Facility and equipment information including images.
- http://www.astro.utoronto.ca/~utso/

Observatorium Hoher List
- Location, equipment information, allocation scheme, development, and gallery.
- http://www.astro.uni-bonn.de/~webstw/ohl/

Canada France Hawaii Telescope Corporation
- News, observing, science, images, and outreach.
- http://cfht.hawaii.edu/

The Warner and Swasey Observatory
- News, online interface, references, gallery, data download, archive, and software.
- http://astrwww.cwru.edu/

MSU - Howell Observatory
- Observatory schedule, and description and images of the facilities.
- http://www.msstate.edu/dept/physics/resources/observatory.php

The Kuiper Airborne Observatory
- Facility and instrumentation information, images, and NASA patches made to mark events.
- http://vathena.arc.nasa.gov/curric/space/lfs/kao.html

Clay Center Observatory
- About the facility, tour, news and events, image archive, and links.
- http://www.dexter-southfield.org/podium/default.aspx?t=10557

Purple Mountain Observatory
- Basic information, projects, groups, observing stations, programs. publications, newsletters, and links.
- http://www.pmo.ac.cn/English/index.htm

The Whole Earth Telescope Project
- About the project, the community, observatories, campaigns, announcements, publications, and tools.
- http://wet.physics.iastate.edu/

Milkyweb Astronomy Observatory Guide
- Database of all worldwide facilities.
- http://www.observatory-guide.org

Calar Alto Observatory
- Information about equipment, schedules, and technical news.
- http://www.mpia-hd.mpg.de/Public/CAHA/

The Ryder Observatory Project
- Facility and equipment information, photos, the project, the outcome, and the history.
- http://www.oceansiderevolution.com/ryder_observatory/

Astronomical Observatory of Rome
- Local information, scientific information, facilities, meetings and seminars, and links.
- http://www.mporzio.astro.it/

Armagh Observatory
- News, public relations, FAQ, and the people.
- http://star.arm.ac.uk/

Mallee Sky
- Introduction, the story, the facility, construction photos, general photos, map, and links.
- http://www.malleesky.com

Sormano Astronomical Observatory
- Information, image gallery, computations, space missions, and history.
- http://www.brera.mi.astro.it/sormano/

Perugia University Observatory
- List of observed blazars, control system, observing process, observations report, and data reduction result.
- http://astro.fisica.unipg.it/osserv.htm

Las Brisas Observatory
- General information, astrophotography index, and links.
- http://lbo.teuton.org/

Wise Observatory
- General information, personnel, observations, news, research, public information, and databases and circulars.
- http://wise-obs.tau.ac.il

Amateur Astronomical Observatories
- List of links to amateur sites.
- http://www.seds.org/billa/obs/obslist.html

ROBOsky Remote Presence Observatories
- Personally control professional astronomical observatories over the internet in real-time.
- http://www.robosky.com/

Faulkes Telescope
- Education and science, information, training, news, and support.
- http://www.faulkes-telescope.com/

The World's Largest Optical Telescopes
- Index of those operational and under construction, extremely large studies, and interesting projects.
- http://astro.nineplanets.org/bigeyes.html

Mount Suhora Astronomical Observatory
- Information on the facility and equipment, pictures, schedule, publications, seminaries, and links.
- http://www.as.ap.krakow.pl/en-ascii/

Instituto de Astrofísica de Canarias
- Research, development, training, administration, and public outreach.
- http://www.iac.es/gabinete/index1.htm

Herzberg Institute of Astrophysics
- About HIA, science and technology, public outreach, business opportunities, media, and careers.
- http://www.hia-iha.nrc-cnrc.gc.ca/main_e.html

Vatican Observatory
- History, equipment specifications, reports, images, news, and a FAQ.
- http://clavius.as.arizona.edu/vo/R1024/VO.html

Ritter Observatory
- Equipment and instrument information, observing information, and data archive.
- http://www.physics.utoledo.edu/~wwwphys/ritter/ritter_obs.html

University of Hawaii 2.2-meter Telescope
- Facility located near the summit of Mauna Kea, and includes observing time request information and equipment manuals.
- http://www.ifa.hawaii.edu/88inch/

Yerkes Observatory
- Facility and equipment information, tour, history, public outreach, and gallery.
- http://astro.uchicago.edu/yerkes/

U. S. Naval Observatory
- General information, FAQ, tour information, history, equipment information, inexpensive digital astro imaging, and instructions on constructing an 8 inch Dobsonian.
- http://www.usno.navy.mil/

The UC Irvine Observatory
- Facility information, images, public access, education and outreach, directions, and technical information on equipment and instrumentation.
- http://www.physics.uci.edu/~observat/

Karl Schwarzschild Observatorium
- Information on equipment and instrumentation, archives, education, public outreach, and news.
- http://www.tls-tautenburg.de/

Strasbourg Astronomical Observatory
- News, conferences, reports, data center, publications, resources, and planetarium information.
- http://astro.u-strasbg.fr/Obs-e.html

Special Astrophysical Observatory
- Equipment information, instrumentation and methods, schedule, and reports.
- http://www.sao.ru/Doc-en/

Johann Palisa Observatory and Planetarium
- News, equipment, stars observed, photo gallery, online data, publications, and links.
- http://ostrava.astronomy.cz/int.php

Norwegian Observatory for Variable Astronomy
- Access, projects, infrastructure, observations, history, and organization.
- http://www.dse.no/nova.html

NF/Observatory Home Page
- Facility, equipment, and instrumentation information, articles, circulars, and image galleries.
- http://www.nfo.edu/

Mount Wilson Virtual Observatory
- Image galleries including a panorama, picture of the day archive, guest archive, and facility archive.
- http://www.astrophys-assist.com/wilobs/

Lund Observatory
- Information, research, education, library, events, seminars, publications, resources, and links.
- http://www.astro.lu.se/

Lick Observatory
- Facility schedule, calendar, resources, equipment and instrument information, available filters, printable log sheets, and bulletins.
- http://mthamilton.ucolick.org/

Observatorio Astronómico Nacional
- Equipment and instrument information, general information, news and events, projects and images, and history.
- http://haro.astrossp.unam.mx/Opciones/text1.html

Observatoire de Haute-Provence
- Observing proposals, publications, photo gallery, instrument information, user's guide, and news.
- http://www.obs-hp.fr/

Harvard College Observatory
- Photographic plate collection, model shop information and images, information on 9 inch Clark and the Great Refractor, and public open nights.
- http://cfa-www.harvard.edu/hco-home.html

Hard Labor Creek Observatory
- Information on 16 inch Boller and Chivens, 16 inch Meade, and a MTT (a one-meter or 40 inch effective aperture) instruments with links..
- http://www.chara.gsu.edu/HLCO/

Grove Creek Observatory
- Tour information, astrophotographs, equipment information, images, moon chart, charged coupled device (CCD) imaging tips, and links.
- http://www.gco.org.au/

Dutch Open Telescope
- Innovative solar instrument with information on news, equipment, publications, documents, facts, movies, and images.
- http://dot.astro.uu.nl/

Climenhaga Observatory
- Information on automated system, statistics, research interests, and discoveries.
- http://astrowww.phys.uvic.ca/climenhaga/obs/telescope.html

Carter Observatory
- General information, education, news, images, schedule, shows, and calendar of events.
- http://www.carterobservatory.org/

Osservatorio Astronomico di Bologna
- Information, activities, services, publications, equipment information, and library.
- http://www.bo.astro.it/

Springbrook Research Observatory
- Photo library, news, message board, projects, online robotic, and chat.
- http://maguires.com/astronomy/

Melton Memorial Observatory
- Unit signup, history, touring, observing, and links.
- http://boson.physics.sc.edu/~melton/

SkyView
- The Internet Virtual Telescope generating images of any part of the sky at wavelengths in all regimes from Radio to Gamma-Ray.
- http://skyview.gsfc.nasa.gov/

Associated Universities, Inc.
- Manages astronomical observatories for universities and National Science Foundation, press releases and information.
- http://www.aui.edu/

Klet Observatory
- Introduction, minor planets, NEO observations, equipment, publications, recent discoveries, images, projects, and links.
- http://www.klet.org/

European Southern Observatory
- News, facilities and operations, projects, activities, general information, outreach activities, and information technology.
- http://www.hq.eso.org/

Association of Universities for Research in Astronomy
- Consortium of educational and other non-profit institutions that operates world-class astronomical observatories.
- http://www.aura-astronomy.org/

Worcester Park Observatory
- Observations, equipment designs and reviews, papers, spectroscopy, construction information, and events.
- http://www.astroman.fsnet.co.uk