Virgo III Cloud

The Virgo III Groups,^[4] Virgo III Cloud,^[5][1][6][3] or the Virgo-Libra Cloud^[7][8][2] is a galaxy filament^[3] consisting of at least 13 galaxy groups.^[7][8] It is located approximately 87 Mly (27 Mpc) from the Solar System.^[3]

Virgo III Cloud
The Virgo III Groups of galaxies
Observation data (Epoch )
Parent structure	Virgo Supercluster[1]
Major axis	11.3 Mpc (37 Mly)[1]
Minor axis	5.7 Mpc (19 Mly)[1]
Redshift	~2000 km/s[2]
Distance	26.70 Mpc (87 Mly)[3]
Other designations
Virgo III Groups, Virgo III Cloud, Virgo-Libra Cloud

The Virgo III Cloud, like the Leo Cloud,^[1] is prolate and points toward the Virgo Cluster.^[1][6]

List of groups

Below is a list of groups in the Virgo III Cloud according to astronomer Brent Tully.^[7][8]

Column 1: The name of the group in Tully's NBGG^[7][8]

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:^{[7][8][9][10][11]})

Groups within the Virgo III Cloud

Name of group	R.A. (J2000)	Dec. (J2000)	Number of members	Brightest member	Redshift	Distance (Mly)	Cross-ID
NBGC 41-1	15h 06m 29.7s[12]	01d 36m 08s[12]	11 (Tully) 9 (Fourque) 8 (Garcia) 13 (Giuricin)	NGC 5846[11]	0.005834[12]	86[12]	NGC 5846 Group,[13][9][10][11] GHCG 150, RXC J1506.4+0136, [FWB89] GrG 70, BAX 226.3853+01.6963, RXGCC 589,[N93] 146, DV 50, MCXC J1506.4+0136, XCLASS 366, [TSK2008] 668[13] LGG 393,[10] NOGG H 830, NOGG P1 836, NOGG P2 852[11]
NBGC 41-2	14h 53m 24.6s[14]	03d 32m 34s[14]	14 (Tully) 11 (Fourque) 22 (Garcia) 26/12/12 (Giuricin)	NGC 5746[11]	0.005087[14]	77[14]	NOTE: Garcia considers the NGC 5746 Group and the NGC 5775 Group described by Fouque et al. to be two subgroups of a larger NGC 5746 Group or 41-2.[10] NGC 5746 Group,[9][10][11] NGC 5775 Group,[9][10] LGG 386, LGG 387,[10] NOGG H 806, NOGG P1 812, NOGG P2 828[11]
NBGC 41-3	14h 20m 38.3s[15]	03d 40m 13s[15]	8 (Tully) 5 (Fourque) 6 (Garcia) 5/6/6 (Giuricin)	NGC 5566[11]	0.005117[15]	80[15]	NGC 5566 Group,[9][10][11] NGC 5638 Group[9][10] LGG 379,[10] NOGG H 779, NOGG P1 781, NOGG P2 797,[11] NGC 5560 Group, NOGG H 777[11]
NBGC 41-4	14h 11m 55.1s[16]	-02d 15m 46s[16]	3 (Tully) 5 (Garcia) 3/6/6 (Giuricin)	NGC 5496[11]	0.005257[17]	80[18]	NGC 5496 Group,[10][11] LGG 377,[10] NOGG H 765, NOGG P1 773, NOGG P2 789,[11] NGC 5506 Group, NOGG P1 770[11]
NBGC 41-5	14h 32m 25.8s[19]	08d 04m 43s[19]	2 (Tully)	NGC 5665[8]	0.007461[19]	70[19]
NBGC 41-6	15h 09m 16.1s[20]	-11d 19m 18s[20]	2 (Tully)	NGC 5861[8]	0.006174[20]	83[20]
NBGC 41-7	13h 54m 37.6s[21]	04d 58m 16s[21]	5 (Tully) 5 (Fourque) 7 (Garcia) 4/7/5 (Giuricin)	NGC 5364[11]	0.004206[21]	68[21]	NGC 5364 Group,[9][10][11] LGG 362,[10] NOGG H 736, NOGG P1 745, NOGG P2 761[11]
NBGC 41-8	13h 37m 32.0s[22]	08d 53m 07s[22]	3 (Tully) 3 (Fourque) 3 (Giuricin)	NGC 5248[11]	0.003839[22]	64[22]	NGC 5248 Group,[9][11] NOGG H 724, NOGG P1 735, NOGG P2 751[11]
NBGC 41-10	15h 13m 45.7s[23]	-14d 16m 11s[23]	3 (Tully)	NGC 5878[8]	0.006641[23]	99[23]
NBGC 41-11	15h 19m 37.1s[24]	-23d 50m 36s[24]	3 (Tully) 3 (Fourque) 5 (Garcia) 3/5/5 (Giuricin)	NGC 5903[11]	0.007972[24]	114[24]	NGC 5898 Group,[9] LGG 398,[10] NGC 5903 Group, NOGG H 837, NOGG P1 847, NOGG P2 862[11]
NBGC 41-12	14h 06m 44.3s[25]	-05d 36m 38s[25]	2 (Tully) 4 (Fourque) 4 (Garcia) 4/5/5 (Giuricin)	NGC 5427[11]	0.008733[26]	110[26]	NOTE: NED considers 42-12 to be the main subgroup of the NGC 5427 Group[25] NGC 5427 Group,[9][10][11] LGG 374,[10] NOGG H 760, NOGG P1 768, NOGG P2 783[11]
NBGC 41-13	14h 06m 44.3s[25]	-05d 36m 38s[25]	2 (Tully)	NGC 5468[11]	0.008733[26]	110[26]	NOTE: NED considers 42-13 to be a subgroup of the NGC 5427 Group[26]
NBGC 41-14	14h 24m 13.2s[27]	-16d 43m 23s[27]	2 (Tully) 2 (Giuricin)	NGC 5595[11]	0.009043[27]	102[27]	NGC 5595 Group, NOGG H 784, NOGG P1 787, NOGG P2 803[11]

See also

• Virgo II Groups