Sh 2-12

Sh 2-12 is an emission nebula in Scorpius. It was discovered by Stewart Sharpless in 1951 as he began to work on his catalog of nebulae, which would become the Sharpless Catalog.

Right ascension17^h 35^m 45^s

Declination−32° 35′ 05″^[1]

Distance3210^[2] ly   (1300±100 pc)

Apparent diameter120' x 120'

Quick facts Nebula, Observation data: epoch ...

Sharpless 2-12

Nebula
H II region
Sh 2-12 (left) and Messier 6 (right)
Observation data: epoch
Right ascension	17h 35m 45s
Declination	−32° 35′ 05″[1]
Distance	3210[2] ly   (1300±100 pc)
Apparent diameter	120' x 120'
Physical characteristics
Radius	112 ly
Designations	RCW 132, Gum 67, IRAS 17324-3233, LBN 1116
See also: Lists of nebulae

Close

This nebula is ionized by the star HD 159176, which is located in the open cluster NGC 6383. ^[3] NGC 6383, along with the smaller Trumpler 28, are both located within the nebula.^[4] Messier 6 is only one degree away.^[5]