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Stock 16
ESO VST image of the most massive stars in Stock 16 in the upper right and some nebulosity of RCW 75 on the lower left
Observation data (J2000 epoch)
Right ascension13h 19m 29s[1]
Declination−62° 38.0′[1]
Distance6200 ly (1900 pc)
Apparent dimensions (V)18′ x 13′
Physical characteristics
Estimated age4–6 Myr
Other designationsC 1315-623
Associations
ConstellationCentaurus
See also: Open cluster, List of open clusters

Stock 16 is a very young Galactic open cluster in the H II region RCW 75 (= Gum 48a). This region lies at the end of an "elephant trunk" shaped molecular cloud and may be a region with triggered star formation. The primary ionizing source for the H II region is the star HD 115455, with spectral type O7.5 III.

RCW 75 is also Gum 48a[2]

In the 1985 paper The young open cluster Stock 16: an example of star formation in an elephant trunk? it was proposed the Stock 16 cluster was an example of star formation.[3] The study included UBV photometry of over thirty stars in the cluster.[3]

References

  1. ^ a b "Cl Stock 16". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved February 22, 2015.
  2. ^ Lang, Kenneth R. (2012-12-06). Astrophysical Data: Planets and Stars. Springer Science & Business Media. ISBN 978-1-4684-0640-5.
  3. ^ a b Turner, David Gerald (1985-05-01). "The young open cluster Stock 16: an example of star formation in an elephant trunk?". The Astrophysical Journal. 292: 148. doi:10.1086/163140. ISSN 0004-637X.


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