NGC6645 (Open cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From South El Monte , NGC6645 is visible in the dawn sky, rising at 03:26 (PST) – 3 hours and 8 minutes before the Sun – and reaching an altitude of 22° above the south-eastern horizon before fading from view as dawn breaks at around 05:34.
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Name
NGC6645
|
Object type
Open cluster
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Position
| Right ascension: | 18h32m [2] |
| Declination: | −16°53' [2] |
| Constellation: | Sagittarius |
| Magnitude: | 8.50 (V) [4] |
| Angular dimensions: | 5.4 arcmin |
| Distance: | 1.2 kpc 4.1 klyr [1] |
Derived quantities
| Absolute mag (V): | -1.98 |
Sources