2004MNRAS.348..297A

Query : 2004MNRAS.348..297A

2004MNRAS.348..297A - Mon. Not. R. Astron. Soc., 348, 297-306 (2004/February-2)

UBVI photometry of the intermediate-age open cluster NGC 6939.

ANDREUZZI G., BRAGAGLIA A., TOSI M. and MARCONI G.

Abstract (from CDS):

We present CCD UBVI photometry of the nearby, intermediate-age open cluster NGC 6939. Using the synthetic colour-magnitude diagram technique we estimate the following parameters: age between 1.3 and 1.0 Gyr (depending on whether or not overshooting is considered), reddening 0.34 ≤E (B -V) ≤ 0.38 and distance modulus 11.3 ≤ (m -M)0≤ 11.4.

Abstract Copyright: 2004 RAS

Journal keyword(s): Hertzsprung-Russell (HR) diagram - open clusters and associations: general - open clusters and associations: individual: NGC 6939

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 PG 0231+051 WD* 02 33 41.3574299856 +05 18 43.649856216 14.562 15.776 16.096 16.267 16.639 DAO.6 148 0
2 NGC 6939 OpC 20 31 40.1 +60 39 11           ~ 159 0
3 Wolf 922 ** 21 31 18.5690289199 -09 47 26.482273373 14.901 13.670 12.006 10.708 9.038 M4.5V 159 0
4 V* EZ Aqr Er* 22 38 33.576000 -15 17 59.75700 15.762 14.33 12.38 12.12 8.677 M5V 304 1

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