AAAP is an astronomy club based in Princeton New Jersey. Our mission is to provide opportunities for members and the public to enhance understanding and appreciation of the astrophysical universe.

Our monthly meetings convene at Peyton Hall, home of the world-renowned Princeton University Department of Astrophysical Sciences. AAAP is grateful for the privilege of holding our regular meetings/lecture series on the second Tuesday of the month at Peyton Hall. We revel in the atmosphere provided by this historically great center of astronomy.

The AAAP owns and operates the AAAP Simpson Observatory in historic Washington Crossing State Park in Hopewell Township, Mercer County NJ. The location provides a beautiful natural forest setting under relatively dark skies, surrounded by over 1500 acres of preserved forest in the State Park and adjacent Baldpate Mountain and Jacobs Creek preserves maintained by Mercer County and Friends of Hopewell Valley Open Space.

AAAP was founded more than 50 years ago in partnership with the New Jersey State Museum Planetarium in Trenton. This association continues today with occasional co-hosted events at the State Museum Planetarium in Trenton. Check out the Planetarium website for their current offerings.