Sh 2-13

Sharpless 2-13
Nebula
H II region
Observation data: epoch
Right ascension	17h 30m 24s
Declination	−31° 33′ 09″
Distance	1300±100 pc
Apparent diameter	40'
Designations	RCW 133, Gum 68
	See also: Lists of nebulae

Last updated September 17, 2025

Sh 2-13 is an emission nebula in Scorpius.^[2] It is ionized by nearby star HD 158186. Sh 2-13 also contains a star cluster it has formed, Antalova 1. It is possible HD 158186 is a member of Antalova 1, it is also possible it is a runaway star from NGC 6383.^[3]

References

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[1] "Sh 2-13".

[2] "CCD Images of the Sharpless Catalog".

[3] "Sh 2-13".

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v t e Gum Catalog
Colin Stanley Gum
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See also: Gum Nebula