Mission and public details
THE AAVSO, THROUGH ITS MEMBERS and THE BROADER ASTRONOMICAL COMMUNITY, CONDUCTS ASTRONOMICAL RESEARCH, DOES DATA COLLECTION, MAINTAINS A DATABASE of KNOWN VARIABLE STARS, A DATABASE of INDIVIDUAL OBSERVATIONS MEASURING BRIGHT of STARS IN VARIOUS COLORS, A DATABASE of EXOPLANET OBSERVATIONS, A DATABASE of SUNSPOT COUNTS, and A DATABASE of SPECTROGRAPHS. THE AAVSO HAS ABOUT 1,400 MEMBERS, THE MAJORITY of WHICH CONTRIBUTE ASTRONOMICAL OBSERVATIONS. THE VARIABLE STAR DATABASE HAS 2 MILLION KNOWN VARIABLE STARS. THERE ARE ABOUT 65 MILLION BRIGHTNESS OBSERVATIONS, 8 THOUSAND EXO-PLANET TRANSITS, 15 THOUSAND SPECTRA, and 181 THOUSAND SOLAR OBSERVATIONS. THE AAVSO ORGANIZES OBSERVING CAMPAIGNS or P…
- Organization
- AMERICAN ASSOCIATION OF VARIABLE STAR OB
- EIN
- 04-2164402
- Address
- 1770 MASSACHUSETTS AVE STE 121, CAMBRIDGE, MA, 02140-2808
- County
- Middlesex
- NTEE classification
- U310
- Organization website
- Visit website






