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Birthday · April 21, 1997

Big Sky Comet 
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April 21, 1997

The cosmos is full of spectacular things: ringed planets, exploding suns, rivers of stars across the night.

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APOD published April 21, 1997. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.

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Original APOD · April 21, 1997

On April 17th, "Big Sky" country sure lived up to its name. The dark skies over the US states of Wyoming, Montana and the Dakotas were quite busy, as shown by this photograph featuring Comet Hale-Bopp. In the foreground is the Absaroka Mountain Range in Wyoming, lit by reflected moonlight. Just to the left of Jim Mountain's peak is Comet Hale-Bopp. The unusual colors visible on the far right are aurora, remnants of the recent solar storm recorded on the Sun. Across the middle of the photo are numerous bright stars, and across the top of the picture are clouds.

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