Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  B85  ·  HD164384  ·  HD164492  ·  HD164514  ·  LBN 27  ·  M 20  ·  NGC 6514  ·  Trifid nebula
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M20, Joshua Judkins
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M20

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M20, Joshua Judkins
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M20

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Description

Messier 20, or the Trifid Nebula is a stunning combination of several kinds of astronomical objects. In this image you can see a convergence of an open cluster of stars, emission nebula of ionized molecular hydrogen, and dark nebulae of dense dust and gas blocking light that make up the divisions between the clouds of hydrogen. The Trifid Nebula is an active star forming region about 5,000 light years away from Earth in the constellation Sagittarius and is easily visible with the naked eye.

I took these data on Thursday August 9, 2018. Seeing was below average and my southern skies are heavily light polluted by Boston, which is just 10 miles away. Had to keep exposures to 30s.

Luminance data was difficult to acquire due to light pollution and seeing, therefore created synthetic luminance by combination of Ha, OIII, and SII.

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    M20, Joshua Judkins
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Description: playing around with CMYK

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M20, Joshua Judkins