The globular cluster NGC 6638
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
Finder chart
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From Washington , NGC 6638 is visible between 23:51 and 03:40. It will become accessible at around 23:51, when it rises 21° above your south-eastern horizon, and then reach its highest point in the sky at 01:48, 27° above your southern horizon. It will become inaccessible at around 03:40 when it sinks to 22° above your south-western horizon.
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|
Name
NGC 6638
|
Object Type
Globular Cluster
|
Position
| Constellation: | Sagittarius |
| Magnitude: | 9.68 (V)[1] 10.81 (B)[1] |
| B-V Color (mag): | 1.13 |
| Right Ascension: | 18h30m [1] |
| Declination: | -25°29' [1] |
| Distance: | 9.6 kpc 31.3 klyr [1] |
Derived Quantities
| Absolute Mag (V): | -5.23 |
Source