Sh 2-16

Sh 2-16 is an emission nebula in the constellation Sagittarius. It is ionized by the star LSS 4381. The nebula also contains an infrared cluster, [DB2000] 56.^[4] It is at the same location as open cluster Collinder 347 which is located closer than the nebula.

Right ascension17^h 46^m 37.2^s

Declination−29° 22′ 02″^[1]

Distance1550±150 pc

Apparent magnitude (V)15.23^[2]

Quick facts Nebula, Observation data: epoch ...

Sharpless 2-16

Nebula
H II region
Sh 2-16 seen faintly behind the overlaid star cluster Collinder 347.
Observation data: epoch
Right ascension	17h 46m 37.2s
Declination	−29° 22′ 02″[1]
Distance	1550±150 pc
Apparent magnitude (V)	15.23[2]
Apparent diameter	12'[3]
Constellation	Sagittarius
Physical characteristics
Radius	28 ly
Designations	RCW 137, Gum 70, LBN 1124
See also: Lists of nebulae

Close

The region appears mostly red in visible light, making observation best through a Hydrogen-alpha filter.^[5]