Abell 1185 is a galaxy cluster located in the constellation Ursa Major. It is approximately 400 million light-years away from Earth and spans one million light-years across. It is a member of the

Leo Supercluster The Leo Supercluster is a supercluster in the Northern Celestial Hemisphere that stretches across the constellations Ursa Major and Leo. It covers an area approximately 130 mega parsecs long by 60 megaparsecs wide. The redshifts of member galaxy c ...

. One of its brightest galaxies is NGC 3550. The cluster also contains NGC 3552, NGC 3553, NGC 3554, NGC 3558 and

NGC 3561 NGC 3561, also known as Arp 105, is a pair of interacting galaxies NGC 3561A and NGC 3561B within the galaxy cluster Abell 1185 in Ursa Major. Its common name is "the Guitar" and contains a small tidal dwarf galaxy known as Ambartsumian's Knot ...

Gallery

File:Abell 1185 HST.jpg, center of Abell 1185 with

Hubble The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versa ...

File:NGC 3561 (Arp 105) within galaxy cluster Abell 1185 - N3561s.jpg,

, which is part of this galaxy cluster, with the Schulman 0.8m Telescope on the

Mount Lemmon Observatory Mount Lemmon Observatory (MLO), also known as the Mount Lemmon Infrared Observatory, is an astronomical observatory located on Mount Lemmon in the Santa Catalina Mountains approximately northeast of Tucson, Arizona (US). The site in the Coronad ...

References

Ursa Major Leo Supercluster

1185 Year 1185 ( MCLXXXV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * August – King William II (the Good) lands in Epirus with a Siculo-Nor ...

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