NGC6939 (Open cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 12 arcminutes across.
Finder chart
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From Cambridge , NGC6939 is visible all night because it is circumpolar. It will be highest in the sky at dusk, becoming accessible at around 17:27 (EST), 68° above your north-western horizon. It will be lost to dawn twilight at around 05:29, 14° above your northern horizon.
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|
Name
NGC6939
|
Object type
Open cluster
|
Position
| Right ascension: | 20h31m [2] |
| Declination: | +60°39' [2] |
| Constellation: | Cepheus |
| Magnitude: | 7.80 (V) [4] 8.85 (B) [2] |
| Distance: | 1.8 kpc 5.9 klyr [1] |
| B-V Color (mag): | 1.05 |
Derived quantities
| Absolute mag (V): | -3.48 |
Sources
Visibility from Cambridge
All times shown in Cambridge local time.