Arp 309 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From South El Monte , Arp 309 is visible in the evening sky, becoming accessible around 17:45 (PST), 22° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 21:20, 45° above your southern horizon. It will continue to be observable until around 00:55, when it sinks below 21° above your south-western horizon.
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Name
Arp 309
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Object type
Galaxy cluster
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Position
| Right ascension: | 02h29m [1] |
| Declination: | −10°49' [1] |
| Constellation: | Cetus |
| Magnitude: | 11.20 (V) [1] |
Source