Astrological Society of Connecticut

The Astrological Society of Connecticut, founded October 17, 1972 in Hartford, Conn.

AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS (AAVSO)

International nonprofit organization and world leader in variable star research, with a mission to enable anyone to participate in scientific discovery.

Des Moines Astronomical Society

The Cosmos is our home, and the night sky is where we can see it best.

Miami Valley Astronomical Society

For more than 100 years, the MVAS has been the face of amateur astronomy in the Miami Valley dedicat March 4 2025 PostsComments Miami Valley Astronomical Society The Universe Is Yours to Discover Welcome to the Miami Valley Astronomical Society Since 1918 the MVAS has been the face of amateur astronomy in the Miami Valley dedicated to educating the public about science of astronomy and fostering the growth of amateur astronomy and fellowship.

San Diego Astronomy Association

The San Diego Astronomy Association is a non-profit 501(c)(3) Educational Organization dedicated to the education and outreach of astronomy to the general public.

Wabash Valley Astronomical Society Inc

The WABASH VALLEY ASTRONOMICAL SOCIETY is a group of people who are interested in all aspects of astronomy and space sciences.

• Single Organization Support

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Friends of Arlingtons David M Brown Planetarium

The Friends of Arlington’s David M. Brown Planetarium is a 501(c)(3) non-profit organization, incorporated in May 2010, whose purpose is to support the Arlington planetarium and promote public science education.

Sonora Astronomical Society Inc

Sonora Astronomical Society EXPLORE LEARN TEACH WELCOME TO THE SONORA ASTRONOMICAL SOCIETY WEBSITE We are an astronomy club representing Green Valley and Sahuarita Arizona.

• Natural Resource Conservation and Protection

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Methow Dark Sky Coalition

Our mission: To preserve, Enhance and Promote Dark Skies in the Methow Valley ​ METHOW DARK SKY Coalition Home About Light Pollution Events News Gallery Contact More Preserve Methow Dark Skies The Methow Valley has some of the darkest skies in Washington state and the entire country.