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Coma B

C35, NGC 4889, (NGC 4884)

Proper NameComa B
Caldwell NumberC35
NGC/IC NumberNGC 4889 (also catalogued as NGC 4884)
ConstellationComa Berenices
Right Ascension13h 0m 8s
Declination+27° 58' 37"
Distancec.317,000,000 light years
c.97,200,000 parsecs
MagnitudeApparent: +11.5
Absolute: -23.4
DiameterApparent: 2.8'
Actual: c.239,000 light years (halo extends to c.1.3 million light years)
Hubble TypeElliptical type 3
Optimum VisibilityApril
NotesOne of the largest galaxies known, Coma B has a diameter approaching 250 million light years, and a halo that extends more than a million light years from the galaxy's core. With its similarly immense neighbour NGC 4874, it lies at the heart of a cloud a smaller galaxies collectively known as the Coma Cluster.


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