Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  B85  ·  HD164384  ·  HD164402  ·  HD164452  ·  HD164492  ·  HD164514  ·  HD164534  ·  HD164637  ·  HD164704  ·  HD164739  ·  HD313595  ·  HD313596  ·  HD313597  ·  HD313598  ·  HD313606  ·  HD313607  ·  HD313608  ·  HD313709  ·  HD313710  ·  HD313711  ·  HD313713  ·  HD313714  ·  HD313715  ·  HD313716  ·  HD313718  ·  HD313731  ·  HD313732  ·  HD313733  ·  HD313734  ·  HD313735  ·  And 9 more.
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M20, the Trifid Nebula, Charles Pevsner
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M20, the Trifid Nebula

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M20, the Trifid Nebula, Charles Pevsner
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M20, the Trifid Nebula

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Description

The Trifid is an exceptional combination of deep sky objects: An emission nebula (pink molecular hydrogen gas, lit up by an open cluster of hot young stars), a reflection nebula (blue starlight reflected from nearby stars), and a dark nebula (dark filaments of cold, dense gas).

It has a radius of 21 light years, ans is about 5,200 light years away.

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M20, the Trifid Nebula, Charles Pevsner