by APOD Robot » Sun Dec 25, 2022 5:09 am
Geminids and the Mittens
Explanation: Asteroid 3200 Phaethon's annual
gift to planet Earth always arrives
in December. Otherwise known as
the Geminid meteor shower, the source of the meteroid stream is dust shed along the orbit of the
mysterious asteroid. Near the December 13/14 peak of the shower's activity, geminid meteors are captured in this night skyscape, composited from 22 images of
starry sky taken before the moon rose over
Monument Valley in the American southwest. The bright stars near the position of the shower's radiant are the constellation
Gemini's twin stars Castor (blue) and Pollux (yellow).
As Earth sweeps through the dusty stream, the parallel meteor trails appear to radiate from a point on the sky in Gemini due to perspective, and so the yearly shower is named for the constellation. From the camera's perspective, this view of three prominent buttes across Monument Valley also suggests appropriate names for
two of them. The third one is called
Merrick Butte.
[url=https://apod.nasa.gov/apod/ap221225.html] [img]https://apod.nasa.gov/apod/calendar/S_221225.jpg[/img] [size=150]Geminids and the Mittens[/size][/url]
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