The Dragonfly Cluster (NGC457)
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 , the Dragonfly Cluster will become visible at around 19:52 (EDT), 40° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 22:45 when it dips 21° above your north-western horizon.
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Name
The Dragonfly Cluster (NGC457)
|
Object type
Open cluster
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Other names
Position
| Right ascension: | 01h19m [2] |
| Declination: | +58°17' [2] |
| Constellation: | Cassiopeia |
| Magnitude: | 6.40 (V) [5] 6.97 (B) [2] |
| Angular dimensions: | 7.8 arcmin |
| Distance: | 2.4 kpc 7.9 klyr [1] |
| B-V Color (mag): | 0.57 |
Derived quantities
| Absolute mag (V): | -5.53 |
Sources
Visibility from Cambridge
All times shown in Cambridge local time.