M85-HCC1 is an ultracompact dwarf galaxy with a star density 1,000,000 times that of the solar neighbourhood, lying near the galaxy Messier 85. As of 2015[update], it is the densest galaxy known.

See also

  • List of most massive galaxies

See also

  • M59-UCD3 (second-densest galaxy known, as of 2015)
  • M60-UCD1 (another dense galaxy)