WEBDA page for open cluster NGC 6639

Basic Parameters			DSS Image: 22 x 22 arcminutes
Right Ascension (2000)	18 30 57
Declination (2000)	-13 08 59
Galactic longitude	18.91
Galactic latitude	-1.51
Distance [pc]	700
Reddening [mag]	0.20
Distance modulus [mag]	9.85
Log Age	8.86
Metallicity
Notes

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