Distances of Five Open Cluster Near Eta Carinae
Open Access
- 1 March 1965
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 129 (3) , 237-262
- https://doi.org/10.1093/mnras/129.3.237
Abstract
Colour-magnitude diagrams have been constructed for five open clusters in the Southern Milky Way near η Carinae and the results tabulated below. Photometry is on Johnson's standard UBV system, and observations were limited to stars brighter than magnitude, V , 15. Ages were estimated from Limber's tabulations ( Ap. J. , 131 , 168, 1960). Although NGC 3496 and Tr 17 are easily seen on plates, the corresponding colour-magnitude and two-colour diagrams are very scattered, and it would be as well to await further proof of their reality as clusters.Keywords
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