Arp 121 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From South El Monte , Arp 121 will become visible at around 18:23 (PST), 38° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 21:52.
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Name
Arp 121
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Object type
Galaxy cluster
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Position
| Right ascension: | 00h59m [1] |
| Declination: | −04°48' [1] |
| Constellation: | Cetus |
| Magnitude: | 14.50 (V) [1] |
Source