· · · ·

M108

NGC 3556

Proper NamesNone
Messier NumberM108
NGC/IC NumberNGC 3556
ConstellationUrsa Major
Right Ascension11h 12m 24s
Declination+55° 35' 10"
Distancec.39,100,000 light years
c.12,000,000 parsecs
MagnitudeApparent: +10.0
Absolute: -20.4
DiameterApparent: 8.6'
Actual: c.90,000 light years
Hubble TypeSc Spiral
Optimum VisibilityMarch / April (Usually visible from northern latitudes)
NotesAn outlying member of the Ursa Major Cluster, M108 is oriented almost edge-on to the Milky Way, and so appears as a narrow elliptical shape in the skies of Earth. Some sources classify it as a barred spiral rather than a simple Sc spiral galaxy.

Indexes

Related Entries