 Royal Astronomical Society of Canada, The (RASC)
 - Canada's oldest astronomical society, dedicated to the advancement of astronomy and allied sciences.- Amateur Telescope Makers of Boston
- Membership is open to all those interested in pursuing astronomy as a hobby.
- American Association of Amateur Astronomers
- Observing awards, quarterly newsletter and membership in the Astronomical League.
- American Association of Variable Star Observers (AAVSO)
- Both amateur and professional.
- AOAS
- Offers astronomy classes and workshops. Includes photo gallery, forum, FAQs, and downloads.
- Astronomical League of the Philippines
- Fosters awareness, interest, and understanding in amateur astronomy.
- Astronomical Society of Singapore, The
- Up-to-date details on sky events, photos, and feature articles about the heavens.
- Astronomical Society of the Pacific
- International nonprofit organization offering educational programs and products, research publications, and membership benefits.
- Astronomyworld.org
- Amateur Astronomers Association of Vadodara (AAAV) portal offering news, forums, links, star charts, pictures of planets, information about space missions, and more.
- British Astronomical Association
- The voice of amateur astronomy in the United Kingdom.
- Center for Backyard Astrophysics (CBA)
- Global network of small telescopes dedicated to photometry of cataclysmic variables.
- Club of Amateurs in Optical Spectroscopy (CAOS)
- Group of aficionados in amateur astronomy with special interest in spectroscopy.
- Custer Institute and Observatory
- Amateur astronomy education centre located on The North Fork of Long Island.
- Czech Astronomy Society
- Events, links, articles from leading Czech and foreign magazines.
- Hawaiian Astronomical Society@
- Jordanian Astronomical Society (JAS)
- Leicester University Astronomy Society
- Guides to the night sky: galaxies, clusters, nebulae, stars and planets. Tour the observatories, telescopes, events, the month-by-month calendar and ask an astronomer.
- Los Angeles Astronomical Society
- Features star party and general meeting information as well as public education resources.
- Minnesota Astronomical Society
- Founded in 1972, promotes amateur astronomy and astronomy education.
- Night Sky Network
- Nationwide coalition of astronomy clubs bringing the science and inspiration of NASA's mission to the public. Founded by JPL's PlanetQuest program.
- Norwegian Astronomical Society@
- Oil Region Astronomical Society
- Group of men, women, and youths who share their equipment and knowledge of the stars in an effort to promote the fundamentals of astronomy and space science.
- Royal Astronomical Society of New Zealand
- Professional and amateur astronomers in New Zealand and Australia.
- Sidewalk Astronomers
- Nonprofit organization dedicated to bring Astronomy to the public.
- Three Rivers Foundation for the Arts and Sciences
- Nonprofit foundation and observatory for astronomy outreach, working to promote science interest and literacy among both the general public and students.
- Von Braun Astronomial Society
- Volunteer organization of amateur and professional astronomers that operate a planetarium and observatory located in Monte Sano State Park.
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