Photometric study of the open cluster NGC 2323

被引:20
作者
Claria, JJ [1 ]
Piatti, AE [1 ]
Lapasset, E [1 ]
机构
[1] Univ Nacl Cordoba, Astron Observ, RA-5000 Cordoba, Argentina
来源
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1998年 / 128卷 / 01期
关键词
open clusters; individual; NGC; 2323; general; HR diagram;
D O I
10.1051/aas:1998130
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
UBV photoelectric photometry for 175 stars in the field of the southern open cluster NGC 2323, supplemented by DDO photometry of 5 probable giants, is presented. The analysis of the photometric data yields 109 probable members; one of them being a red giant, and 3 possible members. The reddening across the cluster is slightly variable and the mean value E(B - V) = 0.25. The apparent cluster distance modulus is 10.62, corresponding to a distance of 940 pc. The age, determined by fitting isochrones with core overshooting, turns out to be 100 +/- 20 Myr. Other fundamental cluster parameters are also determined. NGC 2323 appears not to be physically connected to the CMa OB1 association.
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页码:131 / 138
页数:8
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