Sh 2-27

Sharpless 2-27
Emission nebula
H II region
	The bow shock around Zeta Ophiuchi
Observation data: J2000 epoch
Right ascension	16h 35m 56s
Declination	−12° 43′ 05″
Distance	555 ly
Apparent magnitude (V)	17.3
Apparent dimensions (V)	10° x 15°
Constellation	Ophiuchus
Physical characteristics
Radius	78 ly
Dimensions	480' x 480'
Designations	LBN 24, Gum 73
	See also: Lists of nebulae

Sh 2-27 is an emission nebula in the constellation Ophiuchus. It is extended around the region containing the star Zeta Ophiuchi. The star produces a notable bow shock.^[5] The nebula is very faint, but very large in the sky. It is a portion of the Rho Ophiuchi cloud complex.

References

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v t e Gum Catalog
Colin Stanley Gum
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See also: Gum Nebula, RCW Catalogue