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EIN 04-2164402

American Association of Variable Star Observers

IRS 501(c) type
501(c)(3)
Num. employees
6
City
Cambridge
State
Massachusetts
Year formed
1911
Most recent tax filings
2023-09-01
NTEE code, primary
U03: Science and Technology Professional Societies and Associations
Description
American Association of Variable Star Observers promotes, collaborates in, and facilitates the sharing of information relating to variable stars, astronomical observations, research, and data collection. It also supports research and education through its programs that include research publications and newsletters. The association is involved in data base access and maintenance, data collection, archive support and maintenance.
Total revenues
$691,694
2023
Total expenses
$1,194,983
2023
Total assets
$16,088,028
2023
Num. employees
6
2023

Program areas at American Association of Variable Star Observers

Research and education, data base access and maintenance, data collection, archive support and maintenance
Research publications and newsletters
Meetings and symposiums

Who funds American Association of Variable Star Observers

Grants from foundations and other nonprofits
GrantmakerDescriptionAmount
Fidelity Investments Charitable Gift FundFor Grant Recipient's Exempt Purposes$6,000

Personnel at American Association of Variable Star Observers

NameTitleCompensation
Dr. Brian KloppenborgExecutive Director$45,769
Kathy SpirerOperations Manager$65,769
Whitney ArmentorDevelopment Director
Dr. Bert PabloStaff Astronomer
Kathleen SpirerOperations Manager / Interim Executive Director$107,246
...and 1 more key personnel

Financials for American Association of Variable Star Observers

RevenuesFYE 09/2023
Total grants, contributions, etc.$185,936
Program services$115,288
Investment income and dividends$403,668
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$0
Net gain from sale of non-inventory assets$-13,198
Net income from fundraising events$0
Net income from gaming activities$0
Net income from sales of inventory$0
Miscellaneous revenues$0
Total revenues$691,694

Form 990s for American Association of Variable Star Observers

Fiscal year endingDate received by IRSFormPDF link
2023-092024-08-08990View PDF
2022-092023-08-08990View PDF
2021-092022-08-10990View PDF
2020-092021-04-12990View PDF
2019-092020-09-23990View PDF
...and 10 more Form 990s
Data update history
November 4, 2024
Updated personnel
Identified 1 new personnel
October 31, 2024
Updated personnel
Identified 6 new personnel
September 25, 2024
Posted financials
Added Form 990 for fiscal year 2023
September 22, 2024
Used new vendors
Identified 1 new vendor, including
September 22, 2024
Updated personnel
Identified 3 new personnel
Nonprofit Types
Professional associationsBusiness and community development organizationsResearch centersCharities
Issues
Science and technologyCommunity improvementBusiness and industry
Characteristics
MembershipsConducts researchOperates internationallyEndowed supportCommunity engagement / volunteeringTax deductible donationsAccepts online donations
General information
Address
185 Alewife Brook Pkwy 410
Cambridge, MA 02138
Metro area
Boston-Cambridge-Newton, MA-NH
County
Middlesex County, MA
Website URL
aavso.org/ 
Phone
(617) 354-0484
IRS details
EIN
04-2164402
Fiscal year end
September
Taxreturn type
Form 990
Year formed
1911
Eligible to receive tax-deductible contributions (Pub 78)
Yes
Categorization
NTEE code, primary
U03: Science and Technology Professional Societies and Associations
NAICS code, primary
813920: Professional Associations
Parent/child status
Independent
California AB-488 details
AB 488 status
Not Operating or In Process of Dissolving
Charity Registration status
Withdrawn
FTB status revoked
Not revoked
AG Registration Number
040026
FTB Entity ID
0981110
AB 488 data last updated ("as-of") date
2025-03-05
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