2003A&A...410..511M


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.31CET12:14:46

2003A&A...410..511M - Astronomy and Astrophysics, volume 410, 511-518 (2003/11-1)

Analysing the database for stars in open clusters. I. General methods and description of the data.

MERMILLIOD J.-C. and PAUNZEN E.

Abstract (from CDS):

We present an overview and statistical analysis of the data included in WEBDA. This database includes valuable information such as coordinates, rectangular positions, proper motions, photometric as well as spectroscopic data, radial and rotational velocities for objects of open clusters in our Milky Way. It also contains miscellaneous types of data like membership probabilities, orbital elements of spectroscopic binaries and periods of variability for different kinds of variable stars. Our final goal is to derive astrophysical parameters (reddening, distance and age) of open clusters based on the major photometric system which will be presented in a follow-up paper. For this purpose we have chosen the Johnson UBV, Cousins VRI and Stroemgren uvbyβ photometric systems for a statistical analysis of published data sets included in WEBDA. Our final list contains photographic, photoelectric and CCD data for 469820 objects in 573 open clusters. We have checked the internal (data sets within one photometric system and the same detector technique) and external (different detector technique) accuracy and conclude that more than 97% of all investigated data exhibit a sufficient accuracy for our analysis. The way of weighting and averaging the data is described. In addition, we have compiled a list of deviating measurements which is available to the community through WEBDA.

Abstract Copyright:

Journal keyword(s): open clusters and associations: general - catalogs

Simbad objects: 13

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Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 Cl Berkeley 58 OpC 00 00.0 +60 58   10.39 9.7     ~ 44 0
2 NGC 637 OpC 01 43 04 +64 02.4   8.56 8.2     ~ 67 0
3 NGC 884 OpC 02 22 23 +57 07.5           ~ 448 0
4 NGC 1245 OpC 03 14 48 +47 15.2   9.16 8.4     ~ 124 0
5 Cl Berkeley 11 OpC 04 20 28 +44 54.9   11.14 10.4     ~ 29 0
6 NGC 2112 OpC 05 53 45 +00 24.6     9.1     ~ 67 0
7 NGC 2141 OpC 06 02 55 +10 26.8   10.43 9.4     ~ 115 0
8 NGC 2158 OpC 06 07 25 +24 05.8           ~ 246 0
9 C 0721-122 OpC 07 23 10 -12 18.5   9.61 9.1     ~ 31 0
10 Cl Bochum 10 OpC 10 42 14.2 -59 08 44   6.40 6.2     ~ 73 0
11 NGC 3680 OpC 11 25 38 -43 14.6   8.40 7.6     ~ 291 0
12 NGC 6005 OpC 15 55 59 -57 26.4   11.90 10.7     ~ 36 0
13 M 52 OpC 23 24 48 +61 35.6           ~ 170 0

    Equat.    Gal    SGal    Ecl

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2020.10.31-12:14:46

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