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Nonprofit · EIN 21-0735173

AMERICAN ASTRONOMICAL SOCIETY

Tax-exempt · WASHINGTON, DC 20006

Financials

$19.2M$21.9M2023$21.9M$21.7M2024
Revenue Expenses · by fiscal year end
Financials of AMERICAN ASTRONOMICAL SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990$21,867,046$21,688,245$178,801$25,528,282$12,203,368$13,324,914
December 31, 2023990$19,197,016$21,907,187-$2,710,171$25,423,957$13,347,489$12,076,468
Financial details: 990 for the year ended December 31, 2024

Revenue

Contributions, gifts and grants
$2,286,816
of which government grants
$698,755
Membership dues
$1,191,472
Program service revenue
$19,118,985
Investment income
$385,411
Net gain from sales of assets
$3,377
Other revenue
$75,834

Expenses

Grants and similar amounts paid
$941,589
Compensation of officers, directors and key employees
$1,199,936
Other salaries and wages
$6,532,872
Salaries, compensation and benefits (total)
$9,416,821
Professional fundraising fees
$0
Legal fees
$74,888
Accounting fees
$81,711
Travel
$662,517
Depreciation
$751,287
Program services (functional)
$17,402,334
Management and general (functional)
$4,285,911

Balance sheet and other

Total assets, start of year
$25,423,957
Total assets, end of year
$25,528,282
Total liabilities, end of year
$12,203,368
Net assets, end of year
$13,324,914
Land, buildings and equipment
$818,245
Publicly traded securities
$13,599,704
Net assets without donor restrictions
$8,589,622
Net assets with donor restrictions
$4,735,292
Gross unrelated business income
$906,105
Gross receipts
$21,973,671
Employees
46
Volunteers
250
Year formed
1899
State of legal domicile
DC

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2024, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
KEVIN B MARVELEXECUTIVE OFFICER
Officer
35$480,809$146,933
ETHAN VISHNIACEDITOR-IN-CHIEF
Highest-paid employee
35$278,153$54,658
KELLY E CLARKCHIEF FINANCIAL AND OPERAT
Officer
35$256,185$44,553
JOEL PARRIOTTDIRECTOR OF PUBLIC POLICY/
Officer
35$237,981$33,474
RODNEY NENNERDIRECTOR OF STRATEGIC PART
Highest-paid employee
35$147,915$43,432
DIANE FRENDAKDIRECTOR OF MEMBERSHIP SERVICES
Highest-paid employee
35$112,723$48,439
MICHELE STEVENSONDIRECTOR OF MEETINGS & OPERATIONS
Highest-paid employee
35$113,618$24,253
SYLVIA MARTINEZDIRECTOR OF HR
Highest-paid employee
35$122,129$13,926
JACK BURNSTREASURER
Trustee or director, Officer
2$40,000$0
DARA NORMANPRESIDENT
Trustee or director, Officer
5$0$0
GRANT TREMBLAYSENIOR VICE PRESIDENT
Trustee or director, Officer
5$0$0
DAWN GELINOSECOND VICE PRESIDENT
Trustee or director, Officer
5$0$0
ALICE K B MONETSECRETARY
Trustee or director, Officer
10$0$0
EDWIN BERGINTHIRD VICE PRESIDENT
Trustee or director, Officer
5$0$0
DANIEL DALEAT-LARGE TRUSTEE
Trustee or director
1$0$0
4 more people on this return
NameTitleHours / weekCompensation
GREGORY RUDNICKAT-LARGE TRUSTEE
Trustee or director
1$0
B ASHLEY ZAUDERER-VANDERLEYAT-LARGE TRUSTEE
Trustee or director
1$0
LISA PRATOAT-LARGE TRUSTEE
Trustee or director
1$0
KELSEY JOHNSONPAST PRESIDENT
Trustee or director
5$0
990 for the year ended December 31, 2023: 19 people
NameTitleHours / weekCompensationOther / benefits
KEVIN B MARVELEXECUTIVE OFFICER
Officer
35$471,878$131,164
ETHAN VISHNIACEDITOR-IN-CHIEF
Highest-paid employee
35$271,911$49,399
KELLY E CLARKCHIEF FINANCIAL AND OPERAT
Officer
35$260,712$39,837
JOEL PARRIOTTDIRECTOR OF PUBLIC POLICY/
Officer
35$229,901$28,338
BETHANY JOHNSDEPUTY DIRECTOR OF PUBLIC POLICY
Highest-paid employee
35$163,751$50,583
JULIE STEFFENDIRECTOR OF PUBLISHING
Highest-paid employee
35$160,603$37,251
RODNEY NENNERDIRECTOR OF STRATEGIC PARTNERSHIPS
Highest-paid employee
35$174,026$21,308
ELIZABETH SCUDERIDIRECTOR OF MEETING SERVICES
Highest-paid employee
35$123,481$36,610
KELSEY JOHNSONPRESIDENT
Trustee or director, Officer
5$0$0
ADAM BURGASSERSENIOR VICE PRESIDENT
Trustee or director, Officer
5$0$0
GRANT TREMBLAYSECOND VICE PRESIDENT
Trustee or director, Officer
5$0$0
DORIS DAOUTREASURER
Trustee or director, Officer
2$0$0
ALICE K B MONETSECRETARY
Trustee or director, Officer
10$0$0
JANE RIGBYAT-LARGE TRUSTEE
Trustee or director
1$0$0
LOUIS-GREGORY STROGLERAT-LARGE TRUSTEE
Trustee or director
1$0$0
DARA NORMANPRESIDENT ELECT
Trustee or director, Officer
5$0$0
DAWN GELINOTHIRD VICE PRESIDENT
Trustee or director
5$0$0
LISA PRATOAT-LARGE TRUSTEE
Trustee or director
1$0$0
B ASHLEY ZAUDERER-VANDERLEYAT-LARGE TRUSTEE
Trustee or director
1$0$0

Address and contacts

Address (IRS master file)
1667 K ST NW STE 800, WASHINGTON, DC 20006-1681
In care of
% DR ROBERT W MILKEY
Principal officer (990 for 2024)
KEVIN B MARVEL PHD, 1667 K STREET NW SUITE 800, WASHINGTON, DC 20006
Signed the 990
KEVIN B MARVEL PHD, EXECUTIVE OFFICER
Phone
(202) 328-2010
Return prepared by
SNYDER COHN PC

Mission

THE AMERICAN ASTRONOMICAL SOCIETY (AAS), ESTABLISHED IN 1899, IS THE MAJOR ORGANIZATION OF PROFESSIONAL ASTRONOMERS IN NORTH AMERICA. THE BASIC OBJECTIVE OF THE AAS IS TO PROMOTE THE ADVANCEMENT OF ASTRONOMY AND CLOSELY RELATED BRANCHES OF SCIENCE THE MEMBERSHIP (APPROXIMATELY 7,000) ALSO INCLUDES PHYSICISTS, MATHEMATICIANS, GEOLOGISTS, ENGINEERS AND OTHERS WHOSE RESEARCH INTERESTS LIE WITHIN THE BROAD SPECTRUM OF SUBJECTS NOW COMPRISING CONTEMPORARY ASTRONOMY.

990 for the year ended December 31, 2024

Program accomplishments

  • JOURNALS - WE PUBLISH THE ASTROPHYSICAL JOURNAL WHICH IS THE LEADING SCIENTIFIC JOURNAL IN ASTRONOMY AND ASTROPHYSICS IN THE WORLD. WE ALSO PUBLISH THE ASTROPHYSICAL SUPPLEMENT, LETTERS, THE ASTRONOMICAL JOURNAL AND THE PLANETARY SCIENCE JOURNAL. OUR JOURNALS ARE THE LEADING SOURCE OF SCIENTIFIC CONTENT IN ASTRONOMY AND RELATED FIELDS. IN 2024, WE PUBLISHED OVER 79,962 PAGES OR 5,692 ARTICLES.
    Expenses $6,692,221 · revenue $11,870,691
  • MEETINGS - THE AAS HOLDS TWO MEETINGS PER YEAR IN ADDITION TO THE ANNUAL MEETING FOR THE SIX DIVISIONS OF THE AAS. THE MEETINGS SERVE AS A VENUE IN WHICH THE MEMBERS CAN SHARE SCIENTIFIC RESEARCH WITH OUR COMMUNITY. IN ADDITION TO FORMAL PRESENTATIONS, WE ENSURE THAT EVENTS ARE SCHEDULED TO FACILITATE THE SHARING OF INFORMATION AND IDEAS. OVER 2,770 REGISTRATNTS ATTEDED OUR WINTER MEETING AND OVER 740 ATTENDED OUR SUMMER MEETING.
    Expenses $2,953,347 · revenue $3,459,748
  • MEMBERSHIP SERVICES - MAINTAIN MEMBERSHIP DATABASE AND THE AAS WEBSITE, PUBLISH ON-LINE NEWSLETTERS, PRINTED MEMBERSHIP DIRECTORIES AND AN ANNUAL PRINTED CALENDAR.
    Expenses $1,468,202
  • EDUCATION AND OUTREACH: THE SOCIETY PROMOTES BROAD INTEREST IN ASTRONOMY, WHICH ENHANCES SCIENCE LITERACY AND LEAD MANY TO CAREERS IN SCIENCE AND ENGINEERING.
    Expenses $135,314
  • PUBLIC POLICY AND LOBBYING: THE SOCIETY WORKS WITH OTHER SCIENTIFIC AND EDUCATIONAL SOCIETIES TO PROMOTE THE ADVANCEMENT OF SOCIETY.
    Expenses $327,478
  • STRATEGIC INITIATIVES: SOCIETY-WIDE PROJECTS THAT IMPROVE THE OPERATIONS OF THE SOCIETY AND PROJECTS THAT ARE CENTRAL TO THE MISSION OF THE AAS. THE CURRENT PROJECTS INCLUDE WEBSITE IMPROVEMENTS, ASTRONOMY AMBASSADOR PROGRAM AND THE ORAL HISTORY PROJECT. THESE PROJECTS ARE FUNDED BY COUNCIL-APPROVED TRANSFERS FROM THE JOURNALS PROGRAM.
    Expenses $275,528
  • SKY AND TELESCOPE: THE SKY AND TELESCOPE LINE OF BUSINESS INCLUDE SKY AND TELESCOPE MAGAZINE WHICH IS PUBLISHED MONTHLY, AN ONLINE STORE SHOPATSKY.ORG AND A TOUR BUSINESS.
    Expenses $4,286,671 · revenue $2,882,441
  • GRANTS AND ASSISTANCE. IN 2024, THE SOCIETY ADMINISTERED THE INTERNATIONAL TRAVEL GRANT AND SOLAR ECLIPSE PROGRAMS. THE SOCIETY ALSO PROVIDES GRANTS TO OTHER CHARITABLE ORGANIZATIONS, STUDENTS, EARLY CAREER MEMBERS, PRIZE WINNERS AND SCIENTIFIC EDITORS.
    Expenses $941,589 · grants $941,589
  • JOB REGISTER: THE SOCIETY PUBLISHES A JOB REGISTER THAT ADVERTISES JOBS FOR INDIVIDUALS IN ASTRONOMY AND ASTROPHYSICS. THE JOBS POSTING ARE POSTED BY RESEARCH, COMMERCIAL , INDUSTRY, GOVERNMENT AND PUBLIC POLICY SECTOR ORGANIZATIONS. IN 2024, WE PUBLISHED 1,201 JOB ADVERTISEMENTS.
    Expenses $321,984

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
21-0735173
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1988
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$25,528,282
Income (IRS master file)
$21,973,671

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024$21,867,046$21,688,245$25,528,282XML
990-TDecember 2024–––IRS
990December 2023$19,197,016$21,907,187$25,423,957XML
990-TDecember 2023–––IRS
990December 2022$19,541,464$19,786,193$26,257,850IRS
990-TDecember 2022–––IRS
990December 2021–––IRS
990-TDecember 2021–––IRS
990December 2020–––IRS
990-TDecember 2020–––IRS
990December 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 21-0735173).

Questions about AMERICAN ASTRONOMICAL SOCIETY

What is the EIN of AMERICAN ASTRONOMICAL SOCIETY?
The employer identification number (EIN) of AMERICAN ASTRONOMICAL SOCIETY is 21-0735173.
Is AMERICAN ASTRONOMICAL SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1988.
Are donations to AMERICAN ASTRONOMICAL SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does AMERICAN ASTRONOMICAL SOCIETY file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of AMERICAN ASTRONOMICAL SOCIETY due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did AMERICAN ASTRONOMICAL SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.
Who is the principal officer of AMERICAN ASTRONOMICAL SOCIETY?
The 990 for the year ended December 31, 2024 names KEVIN B MARVEL PHD.
Who are the officers and directors of AMERICAN ASTRONOMICAL SOCIETY?
The 990 for the year ended December 31, 2024 lists 19 people; 9 received compensation from the organization, the highest $480,809 (KEVIN B MARVEL, EXECUTIVE OFFICER).
How much revenue does AMERICAN ASTRONOMICAL SOCIETY have?
On its 990 for the year ended December 31, 2024 it reported revenue of $21,867,046, expenses of $21,688,245 and total assets of $25,528,282 at year end.

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