Arp 99 (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 99 is visible all night. It will become visible at around 20:18 (PDT), 22° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 01:24, 74° above your southern horizon. It will be lost to dawn twilight at around 05:22, 35° above your western horizon.

Name Arp 99
Object type Galaxy cluster
Other names
Arp 99[1]
HCG 93[2]
Position
Right ascension:23h15m [1]
Declination:+18°59' [1]
Constellation:Pegasus
Magnitude:12.20 (V) [1]
10.90 (R) [2]

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