The extremely young open cluster NGC 6611: Compiled catalogue, absorption map and the HR diagram

被引：33

作者：

Belikov, AN

Kharchenko, NV

Piskunov, AE

Schilbach, E

机构：

[1] Astrophys Inst Potsdam, D-14482 Potsdam, Germany

[2] Russian Acad Sci, Astron Inst, Moscow 109017, Russia

[3] Ukrainian Acad Sci, Main Astron Observ, UA-252650 Kiev, Ukraine

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1999年 / 134卷 / 03期

关键词：

open clusters; HR diagram;

D O I：

10.1051/aas:1999154

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A compiled catalogue of astrometric and photometric data for about 2200 stars down to V = 16.8(m) is presented. The stars are located in an area with a,radius of 22.8 arcmin around the extremely young open cluster NGC 6611 with the cluster center at (alpha, delta)(2000.0) = 18(h)18(m)40(s), -13 degrees 47.1'. The catalogue is based on new reductions of positions, proper motions, and of photometric data that have been published in this region and includes, among others, Hipparcos, AC/GSC and Tautenburg Schmidt plate observations. For the membership determination, spatial and proper motion distributions of stars in the region were analysed. An extinction map of the area and the cluster color-magnitude diagram down to M-V = +1(m) were constructed. The distance of NGC 6611 was determined as 2.14 +/- 0.10 kpc.

引用

页码：525 / 536

页数：12

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