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APOD

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

A green aurora fills a star filled sky. A mountain and a lake are in the foreground. The aurora may resemble, to some, a flying or rising Phoenix. Please see the explanation for more detailed information.A green aurora fills a star filled sky. A mountain and a lake are in the foreground. The aurora may resemble, to some, a flying or rising Phoenix. Please see the explanation for more detailed information.

A Phoenix Aurora over Iceland

Explanation: All of the other aurora watchers had gone home. By 3:30 am in Iceland , on a quiet September night, much of that night's auroras had died down. Suddenly, unexpectedly, a new burst of particles streamed down from space, lighting up the Earth's atmosphere once again. This time, surprisingly, pareidolia cally, the night lit up with an amazing shape reminiscent of a giant phoenix . With camera equipment at the ready, two quick sky images were taken, followed immediately by a third of the land. The mountain in the background is Helgafell , while the small foreground river is called Kaldá, both located about 30 kilometers north of Iceland's capital Reykjavík . Seasoned skywatchers will note that just above the mountain, toward the left, is the constellation of Orion , while the Pleiades star cluster is also visible just above the frame center. The 2016 aurora , which lasted only a minute and was soon gone forever -- would possibly be dismissed as a fanciful fable -- were it not captured in the featured, digitally-composed, image mosaic .

Your Sky Surprise: What picture did APOD feature on your birthday? (post 1995)

Date February 25, 2024
Credit Image Credit & Copyright: Hallgrimur P. Helgason ; Rollover Annotation: Judy Schmidt
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.