Messier 8

Red Spider Nebula

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The Red Spider Nebula is a two-lobed planetary nebula located in the southern constellation Sagittarius. The bipolar nebula lies at an approximate distance of 3,000 light years from Earth and has an apparent magnitude of 13. Its designation in the New General Catalogue is NGC 6537.
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Trifid Nebula – Messier 20

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The Trifid Nebula, also known as Messier 20 (M20), is a large star-forming region located in the southern constellation Sagittarius.

The nebula’s name means “divided into three lobes,” and refers to the object consisting of three types of nebulae and an open star cluster. The open cluster is surrounded by an emission nebula, a reflection nebula, and a dark nebula within the emission nebula that gives M20 the trifurcated appearance for which it is known.

The dark nebula was catalogued by Edward Barnard and has the designation Barnard 85 (B85). The Trifid Nebula has the designation NGC 6514 in the New General Catalogue.
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