SH2-254, SH2-257, SH2-255 Mushroom Nebula SHO (Brian Diaz)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: HD253109 · HD253188 · HD253220 · HD253247 · HD253277 · HD253327 · HD253391 · HD253444 · HD253445 · HD253467 · HD253530 · HD253577 · HD42434 · IC 2162 · LBN 858 · LBN 859 · Sh2-254 · Sh2-255 · Sh2-256 · Sh2-257 · Sh2-258

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SH2-254, SH2-257, SH2-255 Mushroom Nebula SHO

Powered byPixInsight

SH2-254, SH2-257, SH2-255 Mushroom Nebula SHO

The nebula complex lies on the border between constellations Orion and Gemini and is a part of the GEM OB1 molecular cloud. Further details can found below the image.

The three larger nebulae are (from right to left) SH2-254, SH2-257 and SH2-255. The smaller nebula below SH2-254 and SH2-257 is SH2-256. SH2-258 is the small reflection nebula on the left side which appears magenta (due to the color factors). The distance of the ionizing sources of the emission nebulae can be queried from the Gaia DR3 database:

NebulaSourceDistance in light yearsSH2-254HD 2532476500 ly (± 300 ly)SH2-255LS 196700 ly (± 400 ly)SH2-2562MASS J06123651+17565486150 ly (± 200 ly)SH2-257HD 2533275150 ly (+5000/-2000 ly)

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Status	Advanced success
Started	...
Astrometry.net job	9235182
PixInsight job	JGXIUZXB0FGX79995RJ051YBLH9HQF95
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h12m44s.237
RA (top/left)	06h14m12s.780
RA (top/right)	06h11m10s.793
RA (bottom/right)	06h11m15s.923
RA (bottom/left)	06h14m17s.387

Dec (center)	+18°02′01″.90
Dec (top/left)	+18°17′39″.87
Dec (top/right)	+18°15′57″.91
Dec (bottom/right)	+17°46′20″.96
Dec (bottom/left)	+17°48′02″.12

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SH2-254, SH2-257, SH2-255 Mushroom Nebula SHO

SH2-254, SH2-257, SH2-255 Mushroom Nebula SHO

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SH2-254, SH2-257, SH2-255 Mushroom Nebula SHO

SH2-254, SH2-257, SH2-255 Mushroom Nebula SHO

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