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⇱ Sh 2-16 - Wikipedia


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Emission nebula
Sharpless 2-16
Nebula
πŸ‘ Image
Sh 2-16 seen faintly behind the overlaid star cluster Collinder 347.
Observation data: epoch
Right ascension17h 46m 37.2s
Declinationβˆ’29Β° 22β€² 02β€³[1]
Distance1550Β±150 pc
Apparent magnitude (V)15.23[2]
Apparent diameter12'[3]
ConstellationSagittarius
Physical characteristics
Radius28 ly
DesignationsRCW 137, Gum 70, LBN 1124
See also: Lists of nebulae

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.

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

References

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