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Westminster Astronomical Society, Inc.
Astronomy Festival on the National Mall
0
Free
Because for your participation, we are now the largest annual one day/one site astronomy outreach event in…
- Smithsonian Arts and Industries Building DC
- 900 Jefferson Drive, SW,  at 9th St
- Washington, DC, DC
- United States
- September 20, 2025 at 11:00 PM through 11:00 PM
CommunityAstronomy & Space
More Information
Because for your participation, we are now the largest annual one day/one site astronomy outreach event in the US.
The 2025 AFNM will be on Sat. Sept. 20, two days before the fall equinox. The AFNM will be between 4th to 7th streets NW or 7th to 9th streets NW depending on the NPS, the renovation status of the Mall, and the renovation status of the NASM. Sunset is a 7:09 so we will have 90 minutes more to look at the sky. Saturn rises at 7:13 pm and will be 14 degrees above the E horizon at 8:30. The Moon will not be visible.
Sept. and Oct. have the most clear nights in DC. There has not been a complexly cloudy day/night or significant rain on Sept. 20 since at least 2009.
Don
The 2025 AFNM will be on Sat. Sept. 20, two days before the fall equinox. The AFNM will be between 4th to 7th streets NW or 7th to 9th streets NW depending on the NPS, the renovation status of the Mall, and the renovation status of the NASM. Sunset is a 7:09 so we will have 90 minutes more to look at the sky. Saturn rises at 7:13 pm and will be 14 degrees above the E horizon at 8:30. The Moon will not be visible.
Sept. and Oct. have the most clear nights in DC. There has not been a complexly cloudy day/night or significant rain on Sept. 20 since at least 2009.
Don
Ticket Required: No
Languages: English