The Crater Cloud is a galaxy filament consisting of at least 11 galaxy groups. It is located approximately from the Solar System. The Crater Cloud lies about below the Virgo Southern Extension.
The Crater Cloud, along with the Leo Cloud, is actually part of the same branch of a larger galaxy filament that extends from the Centaurus Cluster through the Virgo Cluster and continues through the Ursa Major Cluster, known as the Virgo Strand. The Virgo Strand is the main component of the Virgo Supercluster and is made of two branches with the lower branch consisting of the Leo and Crater clouds, while the upper branch is known as the Virgo Southern Extension or Virgo II Groups.
The Crater Cloud is prolate and points toward the Virgo Cluster.
List of groups Below is a list of groups in the Crater Cloud according to astronomer Brent Tully.
Column 1: The name of the group in Tully's NBGG Column 2: The right ascension for epoch 2000. Column 3: The declination for epoch 2000. Column 4: Number of members of the group. Column 5: Brightest member of the group Column 6: Redshift of the group. Column 7: Distance of the group (Millions of light-years). Column 8: Cross-Identifications with other catalogs.
(Sources for data columns:) +Groups within the Crater CloudName of group R.A. (J2000)Dec. (J2000)Number of membersBrightest memberRedshiftDistance (Mly)Cross-IDNBGC 22-111h 59m 57.2s -19d 16m 21s 13 (Tully) 14 (Fourque) 20 (Garcia) 17/14/13 (Giuricin)NGC 40380.00562191NGC 4038 Group, LGG 263, NOGG H 580, NOGG P1 596, NOGG P2 603NBGC 22-211h 43m 30.1s -10d 28m 35s 3 (Tully) 4 (Fourque) 5 (Garcia) 3/6/6 (Giuricin)NGC 38920.00583194NGC 3892 Group, LGG 248, NGC 3732 Group, NOGG H 544, NOGG P1 570, NOGG P2 579NBGC 22-312h 16m 29.0s -11d 31m 42s 2 (Tully)DDO 1160.00390168NBGC 22-411h 48m 30s -28d 31m 42s9 (Tully) 7 (Fourque) 9 (Garcia) 5/11/11 (Giuricin)NGC 39230.00580171NGC 3923 Group, LGG 255, NGC 3936 Group, LGG 253 NOGG H 568, NOGG P1 581, NOGG P2 590NBGC 22-512h 06m 34.7s -29d 24m 16s 3 (Tully) 6 (Fourque) 5 (Garcia) 4 (Giuricin)NGC 41050.00619897NGC 4105 Group, LGG 270, NOGG H 590, NOGG P1 607, NOGG P2 614NBGC 22-611h 13m 01.3s -26d 53m 15s 2 (Tully) 3 (Fourque) 6 (Garcia) 5 (Giuricin)NGC 35850.00478379NGC 3585 Group, LGG 230, NOGG H 511, NOGG P1 526, NOGG P2 536NBGC 22-711h 23m 08.6s -09d 59m 42s 3 (Tully) 3 (Fourque) 3 (Garcia) 3 (Giuricin)NGC 36720.00598796NGC 3672 Group, LGG 235, NOGG H 521, NOGG P1 535, NOGG P2 545NBGC 22-811h 41m 40s -06d 19m 00s 2 (Tully) 2 (Giuricin)NGC 38180.00567492NGC 3818 Group, NOGG H 552, NOGG P1 569, NOGG P2 578NBGC 22-911h 52m 26.5s -04d 18m 37s 2 (Tully) 4 (Garcia) 3 (Giuricin)NGC 39520.00526086NGC 3952 Group, LGG 257, NOGG H 572, NOGG P1 590, NOGG P2 599NBGC 22-1012h 00m 14.6s -01d 14m 03s 2 (Tully) 4 (Garcia) 3 (Giuricin)NGC 40300.00476080NGC 4030 Group, LGG 264, NOGG H 583, NOGG P1 601, NOGG P2 609NBGC 22-1112h 10m 28.7s02d 01m 05s2 (Tully) 3 (Fourque) 6 (Garcia) 4/5/4 (Giuricin)NGC 41790.00433674NGC 4179 Group, NGC 4123 Group, LGG 275, NOGG H 596, NOGG P1 613, NOGG P2 621
See also Virgo II Groups Virgo III Groups References