The open cluster M 39
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 19 arcminutes across.
Finder chart
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From Cambridge , M 39 will become visible around 17:52 (EST) as the dusk sky fades, 44° above your north-western horizon. It will then sink towards the horizon, becoming tricky to observe after 20:50 when it dips 19° above your north-western horizon.
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|
Name
M 39
|
Object Type
Open Cluster
|
Position
| Constellation: | Cygnus |
| Magnitude: | 4.60 (V) [3] 4.66 (B) [2] |
| B-V Color (mag): | 0.06 |
| Right ascension: | 21h31m [2] |
| Declination: | +48°26' [2] |
| Distance: | 326.0 parsec 1062.8 lightyrs [1] |
Derived Quantities
| Absolute mag (V): | -2.97 |