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Christmas 2021 is past, but you can still enjoy the Astro Advent images posted in the Bella Online Astronomy Forum. The second eight days included a funny face, an Arctic fireball, and some winners from the Astronomy Photographer of the Year 2021 competition at the Royal Greenwich Observatory.


Mona Evans
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Joined: May 2010
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BellaOnline Editor
Medieval Human
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BellaOnline Editor
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Joined: May 2010
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Likes: 14
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Here's a little bonus that was too late for the Astro Advent - it's a Christmas Comet. The picture was shown on the Astronomy Picture of the Day on December 25th.

[Image Credit & Copyright: Rolando Ligustri (CARA Project, CAST) and Lukas Demetz]
The tail of a comet streams across this three degree wide telescopic field of view captured under dark Namibian skies on December 21. In outburst only a few days ago and just reaching naked eye visibility Comet Leonard (C/2021 A1) is this year's brightest comet. Binoculars will make the diffuse comet easier to spot though, close to the western horizon after sunset. Details revealed in the sharp image show the comet's coma with a greenish tinge, and follow the interaction of the comet's ion tail with magnetic fields in the solar wind. After passing closest to Earth on December 12 and Venus on December 18, Comet Leonard is heading toward perihelion, its closest approach to the Sun on January 3rd. Appearing in late December's beautiful evening skies Comet Leonard has also become known as 2021's Christmas Comet.


Mona Evans
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Wolf
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It is beautiful. What a photo.


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