CCD photometry of distant open clusters IV. Trumpler 5

被引：19

作者：

Kaluzny, J ^{[1
]}

机构：

[1] Univ Warsaw Observ, PL-00478 Warsaw, Poland

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1998年 / 133卷 / 01期

关键词：

open clusters and associations : individual : Trumpler 5; HR diagram;

D O I：

10.1051/aas:1998453

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present BVI photometry for Trumpler 5, a rich open cluster located in the Galactic anticenter. The cluster age is slightly lower than the age of M 67. Its distance modulus (m - M)(0) and reddening E(B - V) are estimated at 12.4 and 0.58, respectively. These values were obtained for the assumed solar metallicity of the cluster. Our data indicate that Tr 5 is one of the richest objects among the sample of known old open clusters. The total mass included only in upper-main sequence stars exceeds 3000 m.. The angular diameter of the cluster is estimated at 11.6 arcmin, which corresponds to a linear size of about 20 pc for an estimated distance d approximate to 3.0 kpc(1).

引用

页码：25 / 28

页数：4

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