Arp 258 (Galaxy cluster)

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

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From Cambridge , Arp 258 is visible in the evening sky, becoming accessible around 17:27 (EST), 25° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:13, 66° above your southern horizon. It will continue to be observable until around 03:19, when it sinks below 21° above your western horizon.

Name Arp 258
Object type Galaxy cluster
Comprised of UGC 2140
Other names
Arp 258[1]
HCG 18[2]
Position
Right ascension:02h39m [1]
Declination:+18°22' [1]
Constellation:Aries
Magnitude:14.60 (V) [1]
12.70 (R) [2]

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