CDG-2

CDG-2
Image of the galaxy that was photographed by the Hubble Space Telescope, with four globular clusters visible
Observation data
ConstellationPerseus
Right ascension 03h 17m 12.61s
Declination+41° 20′ 52.64″
Distance245 million of ly
Group or clusterPerseus
Notable featuresIt is a dark galaxy

Candidate Dark Galaxy 2 (CDG-2) is a dark galaxy that is made of with a lot of dark matter, along with four globular clusters, in the Perseus cluster.[1] This galaxy has the most dark matter in the universe, estimated to be between 99.94% and 99.98% dark matter.[2] It is located 300 million light years (2.84 sextillion km) away from us.

References

  1. ↑ "Dark Galaxy CDG-2 Near Perseus Cluster - NASA Science". 2026-02-18. Retrieved 2026-03-13.
  2. ↑ published, Robert Lea (2026-02-19). "Hubble telescope discovers rare galaxy that is 99% dark matter". Space. Retrieved 2026-03-13.
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