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 evening sky, becoming accessible around 17:48 (PST), 35° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 19:52, 43° above your southern horizon. It will continue to be observable until around 23:21, when it sinks below 21° above your south-western horizon.
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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