Amateur Astronomers Association
Language: English
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
Meade Instruments: A world leader in the manufacturing of Telescopes, Solar Telescopes, Microscopes, Optics, Binoculars, for amateur astronomers and hobbyists
The site home page
Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes, comets, constellations, eclipses, exoplanets, nebulae, meteors, quasars, observing, telescopes, NASA, Hubble, space missions, stargazing, and more.
The Astronomical Society of the Pacific is an international non-profit scientific and educational organization, founded in 1889, that works to increase understanding and appreciation of astronomy.