Astronomy Day🌑

About Astronomy Day

How long until Astronomy Day?
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Dates of Astronomy Day
2026 InternationalMay 23, Sep 19 International Sat, Sep 19Observances Holiday International Sat, May 23Observances Holiday 2025 InternationalMay 3, Sep 27 International Sat, Sep 27Observances Holiday International Sat, May 3Observances Holiday 2024 InternationalMay 15, Oct 10 International Thu, Oct 10Observances Holiday International Wed, May 15Observances Holiday 2023 InternationalApr 29, Sep 22 International Fri, Sep 22Observances Holiday International Sat, Apr 29Observances Holiday 2022 InternationalMay 7, Oct 1 International Sat, Oct 1Observances Holiday International Sat, May 7Observances Holiday
Summary
This day happens twice a year, giving us twice the chance to explore the wonders of the night sky.

Astronomy Day is a world-wide event observed each fall and spring. Local astronomical societies, planetariums, museums, and observatories will be sponsoring public viewing sessions, presentations, workshops, and other activities to increase public awareness about astronomy and our wonderful universe.

This event was started in 1973 by Doug Berger, the president of the Astronomical Association of Northern California.

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All events on May 3rd 2025