Public nonprofit profile

AMERICAN ASSOCIATION OF VARIABLE STAR OB

CAMBRIDGE, MA · EIN 04-2164402

What this organization reports

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
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Public filing snapshot

Financial information at a glance.

These figures reflect the latest values available in CharityEZ’s public record and may not represent the current year.

$20,337,952reported assets
$1,682,737reported revenue
$1,276,217reported expenses
$366,182reported contributions
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Data note: This profile organizes public nonprofit and IRS filing information for general research. It is not legal, tax, financial, or eligibility advice. Confirm current information with the organization and official sources.

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