Nonpartisan civic infrastructure
AllCiv·Legis1
·

American Astronomical Society

Public charity
DBA: % DR ROBERT W MILKEY
Other · WASHINGTON, DC · EIN 21-0735173

About

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.

In care of DR Robert W Milkey

Donations are tax-deductible
Category
Other
Employees
46
Volunteers
250

Financial Snapshot

FY ending 2024-12-31
Revenue
$21.9M
Expenses
$21.7M
Assets
$25.5M
Liabilities
$12.2M

Financial history

$21.9M$10.9M$0
161718192021222324
RevenueExpenses
Latest FY2024: $21.9M · Avg: $15.9M

Foreign activity (Schedule F)

Total spent abroad$146K
Foreign employees0
Foreign offices0
Foreign partnership interestNo
Foreign trust interestNo
RegionActivitySpent
EUROPE (INCLUDING ICELAND & GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIUM
EAST ASIA AND THE PACIFIC- AUSTRALIA, BRUNEI, BURMA, CAMBODIA
NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES
SOUTH AMERICA - ARGENTINA, BOLIVIA, BRAZIL, CHILE, COLOMBIA, ECUADOR

501(h) election

This 501(c)(3) has NOT elected 501(h) — lobbying is permitted but limited under the vaguer "no substantial part of activities" test.

Political & Grant Activity

Campaign Spending
Lobbying
$20K
Grants Given
$176K
AMERICAN ASTRONOMICAL SOCIETY
Your actions

Address

1667 K ST NW STE 800
Washington, DC, 20006-168

Governance

Voting board members11
Independent members11
Conflict-of-interest policyYes
Whistleblower policyYes
Doc-retention policyYes
Audit committeeYes
990 reviewed by boardYes

Compensation practices

Severance paymentsNo
Equity-based compNo
Supplemental retirement planNo
Compensation committeeYes
Used comp surveyYes
Board approved compYes
Initial contract exceptionNo

Financial detail (Schedule D)

Permanent endowment %30.0%
Endowment held by related orgNo
Public records
ProPublica Nonprofit Explorer
Full 990 PDFs going back to 2001, plus parsed financial extracts. The easiest place to read actual filings.
IRS Tax Exempt Organization Search
IRS-side authoritative source. Confirms current exempt status and pulls the latest determination letter.
These open in a new tab. AllCiv doesn't host filings directly — these are the authoritative public-record sources.