Markarian 20 (Galaxy cluster)
From Columbus , Markarian 20 is visible all night because it is circumpolar. It will be highest in the sky at dusk, becoming accessible at around 21:30 (EDT), 57° above your northern horizon. It will be lost to dawn twilight at around 05:27, 26° above your northern horizon.
Name
Markarian 20
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Object type
Galaxy cluster
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All times shown in Columbus local time.