APOD: Decorating the Sky (2019 Dec 12)

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APOD Robot
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APOD: Decorating the Sky (2019 Dec 12)

Post by APOD Robot » Thu Dec 12, 2019 5:05 am

Image Decorating the Sky

Explanation: Bright stars, clouds of dust and glowing nebulae decorate this cosmic scene, a skyscape just north of Orion's belt. Close to the plane of our Milky Way galaxy, the wide field view spans about 5.5 degrees. Striking bluish M78, a reflection nebula, is on the right. M78's tint is due to dust preferentially reflecting the blue light of hot, young stars. In colorful contrast, the red sash of glowing hydrogen gas sweeping through the center is part of the region's faint but extensive emission nebula known as Barnard's Loop. At lower left, a dark dust cloud forms a prominent silhouette cataloged as LDN 1622. While M78 and the complex Barnard's Loop are some 1,500 light-years away, LDN 1622 is likely to be much closer, only about 500 light-years distant from our fair planet Earth.

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Boomer12k
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Re: APOD: Decorating the Sky (2019 Dec 12)

Post by Boomer12k » Thu Dec 12, 2019 7:24 am

It reminds me of Chinese Chess. A river... the red emission of Bernard's loop in this image, with two opponents on either side, the nebulae, M78 and LDN1622, and the stars are chess pieces in the "cosmic game"...

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orin stepanek
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Re: APOD: Decorating the Sky (2019 Dec 12)

Post by orin stepanek » Thu Dec 12, 2019 12:19 pm

Yes indeed; the sky is decorated! :D Much more in the country than when obscured by city lighting!
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Arcturus
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Re: APOD: Decorating the Sky (2019 Dec 12)

Post by Arcturus » Thu Dec 19, 2019 10:18 am

That's correct. We shouldn't forget that Christmas outdoor decoration also contributes to light pollution.