Stock 16

Stock 16
Observation data (J2000 epoch)
Constellation	Centaurus
Right ascension	13h 19m 29s[1]
Declination	−62° 38.0′[1]
Distance	6200 ly (1900 pc)
Apparent dimensions (V)	18′ x 13′
Physical characteristics
Estimated age	4–6 Myr
Other designations	C 1315-623

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 propsed 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

"Cl Stock 16". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved February 22, 2015.
Lang, Kenneth R. (2012-12-06). Astrophysical Data: Planets and Stars. Springer Science & Business Media. ISBN 978-1-4684-0640-5.
Turner, David Gerald (1985-05-01). "The young open cluster Stock 16: an example of star formation in an elephant trunk?". ISSN 0004-637X. Cite journal requires |journal= (help)

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[simbad-1] "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.

[:0-3] Turner, David Gerald (1985-05-01). "The young open cluster Stock 16: an example of star formation in an elephant trunk?". ISSN 0004-637X. Cite journal requires |journal= (help)