Abell cluster 21 (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 , Abell cluster 21 is visible in the morning sky, becoming accessible around 20:12, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 01:38, 84° above your southern horizon. It will be lost to dawn twilight around 05:32, 40° above your western horizon.

Name Abell cluster 21
Object type Galaxy cluster
Position
Right ascension:00h20m [1]
Declination:+28°37' [1]
Constellation:Andromeda
Magnitude:16.20 (R) [1]

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