Arp 221 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , Arp 221 will become visible at around 21:24 (EDT), 22° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 48 minutes after the Sun at 23:50.
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Name
Arp 221
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Object type
Galaxy cluster
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Position
| Right ascension: | 09h36m [1] |
| Declination: | −11°19' [1] |
| Constellation: | Hydra |
| Magnitude: | 14.00 (V) [1] |
Source