NGC6638 (Globular cluster)

R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.

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From South El Monte , NGC6638 will become visible at around 19:22 (PDT), 27° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 22:51.

Name NGC6638
Object type Globular cluster
Position
Right ascension:18h30m [2]
Declination:−25°29' [2]
Constellation:Sagittarius
Magnitude:9.68 (V) [2]
10.81 (B) [2]
Distance:9.6 kpc
31.3 klyr [1]
B-V Color (mag):1.13
Derived quantities
Absolute mag (V):-5.23

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