The Larger Community
links identify other local clubs in Arizona or national and international amateur organizations.
Brown Dwarfs of Orion's Trapezium
- Astronomy Picture of the Day
HST WFPC2 data
bright stars here are well known. The many dim objects, however, are not
well known, and have come to attention only on recent
images in infrared
light. These dim objects are thought to be brown
dwarfs and free-floating
The Astronomical League
The world's largest federation of amateur astronomers.
Night Sky Network
Website created by the Astronomical Society of the Pacific in conjunction with NASA.
The Sedona Astronomy Club
Coconino Astronomical Society (CAS)
Flagstaff Astronomy Club. Meets at Lowell Observatory.
East Valley Astronomy Club
Amateur club serving Eastern Metropolitan Phoenix, AZ.
Saguaro Astronomy Club (SAC)
Serving Metro Phoenix, AZ.
Tucson Amateur Astronomy Association
Large group with over 300 members. Sponsors the Grand Canyon Star Party.
Huachuca Astronomy Club
Based in Sierra Vista and serves the SE Arizona Area
International Dark-Sky Association
To preserve and protect the nighttime environment and our heritage of dark skies through quality outdoor lighting.