Sh 2-5

Sh 2-5 is an emission nebula in the constellation Scorpius. It is part of the Sharpless Catalog assembled by Stewart Sharpless.^[3] It is contained within the much larger War and Peace Nebula, listed in the Sharpless catalog as Sh 2-11,^[4] and Sh 2-5 itself contains NGC 6337.

Sharpless 2-5

Emission nebula
H II region
Observation data: epoch
Right ascension	17h 20m 13s
Declination	−38° 29′ 03″
Distance	8,800 ly   (2,700 pc)
Apparent magnitude (V)	15.6 [1]
Apparent dimensions (V)	100'
Constellation	Scorpius
Designations	RCW 123, Gum 59, IRAS 17167-3826 [2]
See also: Lists of nebulae

Like the nearby Sh 2-4, Sh 2-5 is probably ionized by the nearby star cluster Havlen-Moffat 1. However, it is also possible that ionization may be caused by nearer stars in the Sagittarius Arm.^[5]

NGC 6337 within the nebula. The red nebulosity is part of Sh 2-5.