WEBDA page for open cluster NGC 6639

Basic ParametersNGC 6639
DSS Image: 22 x 22 arcminutes
Right Ascension (2000)18 30 57
Declination (2000)-13 08 59
Galactic longitude18.91
Galactic latitude-1.51
Distance [pc]700
Reddening [mag]0.20
Distance modulus [mag] 9.85
Log Age8.86
Metallicity
Notes

Numbering system:

Kharchenko N., et al., 2005, Astron. Astrophys. 438, 1163 (sequential numbering based on right ascension) (2005A&A...438.1163K)

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