Arp 4 (Galaxy cluster)

R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.

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From South El Monte , Arp 4 is visible in the dawn sky, rising at 02:24 (PDT) – 3 hours and 18 minutes before the Sun – and reaching an altitude of 23° above the south-eastern horizon before fading from view as dawn breaks at around 04:31.

Name Arp 4
Object type Galaxy cluster
Position
Right ascension:01h48m [1]
Declination:−12°22' [1]
Constellation:Cetus
Magnitude:13.70 (V) [1]

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