Skip to content
Nonprofiteer
← AMERICAN ASTRONOMICAL SOCIETY

Form 990 for tax year 2024

Filed by AMERICAN ASTRONOMICAL SOCIETY.

Totals

Total revenue
$21,867,046
Total expenses
$21,688,245
Contributions and grants received
$2,286,816
Grants paid
$941,589
Program service revenue
$19,118,985
Investment income
$385,411
Other revenue
$75,834
Total assets, end of year
$25,528,282
Total liabilities, end of year
$12,203,368
Net assets or fund balances, end of year
$13,324,914
Program services expenses (Part IX)
$17,402,334
Management and general expenses
$4,285,911
Fundraising expenses
$0
Program service expenses (Part III)
$17,402,334

Program services were 80.2% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

Line items

Every line the filer filed in Parts VIII, IX and X, as filed and in filed order. Blank columns are left out, and the lines are not forced to add up to the totals above.

Revenue

Part VIII, the statement of revenue.

  • 1b · Membership dues

    $1,191,472

  • 1e · Government grants (contributions)

    $698,755

  • 1f · All other contributions, gifts and grants

    $396,589

  • 1g · Noncash contributions included above

    $106,625

  • 2a · Program service revenue: JOURNALS

    total $12,479,484 · related or exempt $11,870,690 · unrelated business $608,794

  • 2b · Program service revenue: MEETINGS

    total $3,459,749 · related or exempt $3,459,749

  • 2c · Program service revenue: S&T MAGAZINES AND TOURS

    total $2,771,220 · related or exempt $2,473,909 · unrelated business $297,311

  • 2d · Program service revenue: ONLINE STORE

    total $408,532 · related or exempt $408,532

  • 3 · Investment income

    total $382,034 · excluded $382,034

  • 7a · Gross sales of assets other than inventory

    securities $110,002

  • 7b · Less cost or other basis and sales expenses

    securities $106,625

  • 7c · Gain or loss

    securities $3,377

  • 7d · Net gain or loss

    total $3,377 · excluded $3,377

  • 11a · Other revenue: OTHER

    total $75,834 · excluded $75,834

  • 11e · Other revenue, total

    $75,834

Functional expenses

Part IX, the statement of functional expenses.

  • 1 · Grants to domestic organizations and governments

    total $266,437 · program services $266,437

  • 2 · Grants to domestic individuals

    total $499,398 · program services $499,398

  • 3 · Grants to foreign organizations and individuals

    total $175,754 · program services $175,754

  • 5 · Compensation of officers, directors and key employees

    total $1,199,936 · program services $1,139,939 · management and general $59,997

  • 7 · Other salaries and wages

    total $6,532,872 · program services $5,030,477 · management and general $1,502,395

  • 8 · Pension plan contributions

    total $373,920 · program services $188,305 · management and general $185,615

  • 9 · Other employee benefits

    total $945,265 · program services $712,020 · management and general $233,245

  • 10 · Payroll taxes

    total $364,828 · program services $274,552 · management and general $90,276

  • 11a · Fees: management

    total $35,624 · program services $35,624

  • 11b · Fees: legal

    total $74,888 · program services $130 · management and general $74,758

  • 11c · Fees: accounting

    total $81,711 · program services $38,461 · management and general $43,250

  • 11f · Fees: investment management

    total $33,915 · management and general $33,915

  • 11g · Fees: other

    total $836,084 · program services $499,310 · management and general $336,774

  • 13 · Office expenses

    total $2,399,823 · program services $1,432,541 · management and general $967,282

  • 14 · Information technology

    total $46,541 · program services $8,931 · management and general $37,610

  • 17 · Travel

    total $662,517 · program services $560,235 · management and general $102,282

  • 19 · Conferences, conventions and meetings

    total $2,244,479 · program services $2,230,459 · management and general $14,020

  • 22 · Depreciation, depletion and amortization

    total $751,287 · program services $223,891 · management and general $527,396

  • 23 · Insurance

    total $71,317 · program services $213 · management and general $71,104

  • 24a · Other expenses: UBIT

    total $149,488 · program services $149,488

  • 24b · Other expenses: JOURNAL PRODUCTION

    total $2,315,723 · program services $2,315,723

  • 24c · Other expenses: MAGAZINE PRODUCTION

    total $1,355,826 · program services $1,355,826

  • 24d · Other expenses: ONLINE STORE

    total $250,135 · program services $250,135

  • 24e · All other expenses

    total $20,477 · program services $14,485 · management and general $5,992

Balance sheet

Part X, book values.

  • 1 · Cash, non-interest-bearing

    beginning of year $1,056,543 · end of year $1,445,959

  • 2 · Savings and temporary cash investments

    beginning of year $620,190 · end of year $220,654

  • 3 · Pledges and grants receivable

    beginning of year $50,696 · end of year $47,440

  • 4 · Accounts receivable

    beginning of year $1,339,164 · end of year $1,764,032

  • 8 · Inventories for sale or use

    beginning of year $472,655 · end of year $477,568

  • 9 · Prepaid expenses and deferred charges

    beginning of year $1,060,415 · end of year $1,082,958

  • 10a · Land, buildings and equipment: cost or other basis

    $3,050,639

  • 10b · Land, buildings and equipment: accumulated depreciation

    $2,232,394

  • 10c · Land, buildings and equipment, net

    beginning of year $898,592 · end of year $818,245

  • 11 · Investments: publicly traded securities

    beginning of year $12,979,306 · end of year $13,599,704

  • 13 · Investments: program-related

    beginning of year $43,446 · end of year $65,025

  • 14 · Intangible assets

    beginning of year $448,025 · end of year $0

  • 15 · Other assets

    beginning of year $6,454,925 · end of year $6,006,697

  • 17 · Accounts payable and accrued expenses

    beginning of year $1,486,293 · end of year $784,641

  • 19 · Deferred revenue

    beginning of year $4,077,624 · end of year $3,916,638

  • 25 · Other liabilities

    beginning of year $7,783,572 · end of year $7,502,089

  • 27 · Net assets without donor restrictions

    beginning of year $7,746,730 · end of year $8,589,622

  • 28 · Net assets with donor restrictions

    beginning of year $4,329,738 · end of year $4,735,292

Mission and programs · 2024

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.

Activities or mission (Part I)

TO PROMOTE SCIENTIFIC RESEARCH IN AND PUBLIC UNDERSTANDING OF ASTRONOMY AND ASTROPHYSICS.

  • 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

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Listed in Part VII

  • Kevin B Marvel

    EXECUTIVE OFFICER

    Total calculated
    $627,742
    From this org
    $480,809
    From related orgs
    $0
    Other
    $146,933
    Hours/week
    35

    Schedule J breakdown matched by us

    Base
    $462,394
    Bonus
    $18,415
    Other
    $0
    Deferred
    $96,152
    Nontaxable benefits
    $50,781
    Filer's total
    $627,742
  • Kelly E Clark

    CHIEF FINANCIAL AND OPERAT

    Total calculated
    $300,738
    From this org
    $256,185
    From related orgs
    $0
    Other
    $44,553
    Hours/week
    35

    Schedule J breakdown matched by us

    Base
    $216,471
    Bonus
    $1,500
    Other
    $38,214
    Deferred
    $27,521
    Nontaxable benefits
    $17,032
    Filer's total
    $300,738
  • Ethan Vishniac

    EDITOR-IN-CHIEF

    Total calculated
    $332,811
    From this org
    $278,153
    From related orgs
    $0
    Other
    $54,658
    Hours/week
    35

    Schedule J breakdown matched by us

    Base
    $238,459
    Bonus
    $0
    Other
    $39,694
    Deferred
    $27,698
    Nontaxable benefits
    $26,960
    Filer's total
    $332,811
  • Joel Parriott

    DIRECTOR OF PUBLIC POLICY/

    Total calculated
    $271,455
    From this org
    $237,981
    From related orgs
    $0
    Other
    $33,474
    Hours/week
    35

    Schedule J breakdown matched by us

    Base
    $228,202
    Bonus
    $1,500
    Other
    $8,279
    Deferred
    $23,849
    Nontaxable benefits
    $9,625
    Filer's total
    $271,455
  • Rodney Nenner

    DIRECTOR OF STRATEGIC PART

    Total calculated
    $191,347
    From this org
    $147,915
    From related orgs
    $0
    Other
    $43,432
    Hours/week
    35

    Schedule J breakdown matched by us

    Base
    $132,987
    Bonus
    $1,500
    Other
    $13,428
    Deferred
    $16,775
    Nontaxable benefits
    $26,657
    Filer's total
    $191,347
  • Sylvia Martinez

    DIRECTOR OF HR

    Total calculated
    $136,055
    From this org
    $122,129
    From related orgs
    $0
    Other
    $13,926
    Hours/week
    35
  • Michele Stevenson

    DIRECTOR OF MEETINGS & OPERATIONS

    Total calculated
    $137,871
    From this org
    $113,618
    From related orgs
    $0
    Other
    $24,253
    Hours/week
    35
  • Diane Frendak

    DIRECTOR OF MEMBERSHIP SERVICES

    Total calculated
    $161,162
    From this org
    $112,723
    From related orgs
    $0
    Other
    $48,439
    Hours/week
    35

    Schedule J breakdown matched by us

    Base
    $94,346
    Bonus
    $1,500
    Other
    $16,877
    Deferred
    $12,155
    Nontaxable benefits
    $36,284
    Filer's total
    $161,162
  • Dara Norman

    PRESIDENT

    Total calculated
    $0
    Hours/week
    5
  • Grant Tremblay

    SENIOR VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    5
  • Dawn Gelino

    SECOND VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    5
  • Jack Burns

    TREASURER

    Total calculated
    $40,000
    From this org
    $40,000
    From related orgs
    $0
    Other
    $0
    Hours/week
    2
  • Alice K B Monet

    SECRETARY

    Total calculated
    $0
    Hours/week
    10
  • Edwin Bergin

    THIRD VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    5
  • Daniel Dale

    AT-LARGE TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Gregory Rudnick

    AT-LARGE TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • B Ashley Zauderer-Vanderley

    AT-LARGE TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Lisa Prato

    AT-LARGE TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Kelsey Johnson

    PAST PRESIDENT

    Total calculated
    $0
    Hours/week
    5

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us.

Schedule J

Answered yes

  • 3 · Compensation committee
  • 3 · Written employment contract
  • 3 · Compensation survey or study
  • 3 · Approval by the board or compensation committee

Answered no

  • 4a · Severance or change-of-control payment
  • 4b · Supplemental nonqualified retirement plan
  • 4c · Equity-based compensation arrangement
  • 5a · Pay contingent on this organization's revenues
  • 5b · Pay contingent on a related organization's revenues
  • 6a · Pay contingent on this organization's net earnings
  • 6b · Pay contingent on a related organization's net earnings
  • 7 · Other non-fixed payments
  • 8 · Paid under the initial-contract exception

Part I's answers as filed. A line not listed was left unanswered; on lines 1a and 3 that means the box was not checked.

Grants on this return

Taxable family on this return

Schedule R Parts I, III and IV, as filed. These record ownership and control, not shared board members or money moved.

Disregarded entities

Part I: entities that legally are the filer and file no return of their own.

  • AAS SKY PUBLISHING LLC

    PUBLISHING SKY & TELESCOPE MAGAZINE · DC · income $3,274,393 · assets $5,027,130

    Directly controlled by AMERICAN ASTRONOMICAL SOCIETY

Related corporations and trusts

Part IV: related organizations taxable as a corporation or trust.

  • ASTRONOMYCOM INC

    C · PROVIDE SPEAKER PRESENTATION SYSTEM & ON-SITE MEETING · DE · 100% owned · share of income $61,579 · share of assets $65,860 · controlled entity

    Directly controlled by AMERICAN ASTRONOMICAL SOCIETY

Provenance

Return type
form_990
Tax year
2024
Filed
5 November 2025
IRS schema version
2024v5.2
Source object
202523099349303912

Check it against the return as filed: the GivingTuesday Data Lake hosts a public copy of the original XML.

The source document this was parsed from is served over the API, which is where bulk and document access live.