Astronomy:Sh 2-17

From HandWiki
Sharpless 2-17
Emission nebula
H II region
RCW 138 DECaPS DR2
As seen by the Legacy Survey
Observation data: J2000 epoch
Right ascension 17h 46m 12s
Declination−28° 51′ 0″[1]
Distance4,890[2] ly
Apparent magnitude (V)15.33
Apparent diameter84' x 63'
ConstellationSagittarius
Physical characteristics
Radius36 ly
DesignationsRCW 138
See also: Lists of nebulae

Sh 2-17 is an emission nebula in the constellation Sagittarius. It is part of the Sharpless Catalog assembled by Stewart Sharpless. It contains the infrared cluster [DB2000] 58. It is estimated to contain about 12 stars, and may cause ionization within the nebula.[3]


References

  1. ↑ "Sh 2-17". https://simbad.u-strasbg.fr/simbad/sim-id?Ident=Sh+2-17&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id. 
  2. ↑ "Sharpless (Sh2) - Astrobasics". 13 September 2022. https://astrobasics.de/galerie/kataloge/sh2/#object-10429. 
  3. ↑ "Sh 2-17". http://galaxymap.org/cat/view/sharpless/17. 

category:sagittarius (constellation)



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