NGC6558 (Globular cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
Finder chart
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From Cambridge , NGC6558 is not readily observable since it lies so far south that it will never rise more than 15° above the horizon.
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|
Name
NGC6558
|
Object type
Globular cluster
|
Position
| Right ascension: | 18h10m [2] |
| Declination: | −31°45' [2] |
| Constellation: | Sagittarius |
| Magnitude: | 8.60 (V) [4] 12.39 (B) [2] |
| Distance: | 7.4 kpc 24.1 klyr [1] |
| B-V Color (mag): | 1.10 |
Derived quantities
| Absolute mag (V): | -5.75 |
Visibility from Cambridge
All times shown in Cambridge local time.