The Astronomical League is composed of over two hundred and forty local amateur astronomical societies from all across the United States. These organizations, along with our Members-at-Large, Patrons, and Supporting members form one of the largest amateur astronomical organizations in the world
     Exploring the Universe from Southwest Virginia.  established 1996
The Society of Amateur Radio Astronomers (SARA) is an international society of dedicated enthusiasts who teach,  learn, trade technical information, and do their own observations of the radio sky.
This organization is a scientific, non-profit group founded for the sole purpose of supporting amateur radio astronomy. SARA was organized in 1981, and today has hundreds of members worldwide.
The Citizen Weather Observer Program (CWOP) is a public-private partnership with three main goals: 1) to collect weather data contributed by citizens; 2) to make these data available for weather services and homeland security; and 3) to provide feedback to the data contributors so that they have the tools to check and improve their data quality. In fact, the web address,, stands for weather quality assurance.
ERAS and / or member affiliates,
© ERAS 2013
A non-profit member organization that teaches others how to preserve the night sky through fact sheets, law references, pictures, and web resources.
Once a source of wonder--and one half of the entire planet’s natural  environment—the star-filled nights of just a few years ago are vanishing in a yellow haze. Human-produced light pollution not only mars our view of the stars; poor lighting threatens astronomy, disrupts ecosystems, affects human circadian rhythms, and wastes energy to the tune of $2.2 billion per year in the U.S. alone.