NGC 6638

Globular Cluster NGC 6638, class VI, in Sagittarius

RA:
18:30:56.10
Dec:
-25:29:50.9
Distance from Sun:
30.6 kly
Distance from Galactic Center:
7.2 kly
Apparent Diameter:
6.6 arc min
Brightness:
9.02 mag vis
Radial Velocity:
+18.1 +/- 3.9 km/s
Diameter:
ly
Abs. Mag:
-7.12 Mag vis
Discovered by William Herschel on June 12, 1784.



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Hartmut Frommert [contact]
[SEDS]