| NGC4651 / Galaxy, type SA(rs)c II |
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| R.A. | 12h 43m 42.6s (2000.0) |
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| Dec. | +16°23' 43" (2000.0) |
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| Apparent Size | 4.0×2.6' |
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| Radial Velocity | +788km/s |
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| Magnitude | 11.4 |
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| Distance | 72 million light yrs. |
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| Group of Galaxies | Virgo Cluster |
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| Other IDs | UGC 7901, CGCG 100-4
Arp 189, MCG +3-33-1
IRAS 12412+1639, PGC 42833 |
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This is a spiral galaxy located in the northeastern corner of the Virgo Cluster, within the region of the constellation Coma Berenices.
To find it, trace 7 degrees northwest from ε Virginis.
NGC 4651 is nicknamed the "Umbrella Galaxy" because of a structure extending eastward from the main body of the galaxy, resembling an open umbrella.
This structure stretches nearly 6 arcminutes, exceeding the size of the galaxy itself.
It is believed that a dwarf galaxy once approached NGC 4651, and its shape was distorted by tidal interactions, forming this unique structure.
Due to its unusual appearance, it is listed as number 189 in the Arp Catalog of Peculiar Galaxies.
NGC 4651 is located approximately 72 million light-years away, placing it at the farthest edge of the Virgo Cluster.
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