Arp 4 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From South El Monte , Arp 4 is visible in the dawn sky, rising at 01:52 (PDT) – 3 hours and 54 minutes before the Sun – and reaching an altitude of 29° above the south-eastern horizon before fading from view as dawn breaks at around 04:36.
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Name
Arp 4
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Object type
Galaxy cluster
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Position
| Right ascension: | 01h48m [1] |
| Declination: | −12°22' [1] |
| Constellation: | Cetus |
| Magnitude: | 13.70 (V) [1] |
Source