Arp 81 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Cambridge , Arp 81 is visible all night because it is circumpolar. It will be highest in the sky shortly before dawn, when it will be lost to twilight at around 05:18, 62° above your northern horizon. At dusk, it will become visible at around 20:16 (EDT), 22° above your northern horizon.
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|
Name
Arp 81
|
Object type
Galaxy cluster
|
Position
| Right ascension: | 18h12m [1] |
| Declination: | +68°21' [1] |
| Constellation: | Draco |
| Magnitude: | 12.80 (V) [1] |
Source
Visibility from Cambridge
All times shown in Cambridge local time.