APOD: Aurora Over White Dome Geyser (2022 Feb 20)

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APOD Robot
Otto Posterman
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APOD: Aurora Over White Dome Geyser (2022 Feb 20)

Post by APOD Robot » Sun Feb 20, 2022 5:05 am

Image Aurora Over White Dome Geyser

Explanation: Sometimes both heaven and Earth erupt. Colorful auroras erupted unexpectedly a few years ago, with green aurora appearing near the horizon and brilliant bands of red aurora blooming high overhead. A bright Moon lit the foreground of this picturesque scene, while familiar stars could be seen far in the distance. With planning, the careful astrophotographer shot this image mosaic in the field of White Dome Geyser in Yellowstone National Park in the western USA. Sure enough, just after midnight, White Dome erupted -- spraying a stream of water and vapor many meters into the air. Geyser water is heated to steam by scalding magma several kilometers below, and rises through rock cracks to the surface. About half of all known geysers occur in Yellowstone National Park. Although the geomagnetic storm that caused the auroras subsided within a day, eruptions of White Dome Geyser continue about every 30 minutes.

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orin stepanek
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Re: APOD: Aurora Over White Dome Geyser (2022 Feb 20)

Post by orin stepanek » Sun Feb 20, 2022 1:53 pm

If you have never been to Yellowstone; you should go! Wonderful
views there! I hope the Yellowstone volcano never blows!
The geyser in action! 8-)
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Serendipitous Sleuthhound
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Re: APOD: Aurora Over White Dome Geyser (2022 Feb 20)

Post by alter-ego » Mon Feb 21, 2022 2:40 am

Hey! I was very surprised, and complimented, to see my 2012 post linked identifying many familiar stars.
As of today, considering the difficulty of identifying APOD star fields I've identified over the years, I think this one falls in the top 3.

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