Canes Venatici cloud
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In astronomy, the Canes Venatici cloud is a galaxy cluster cloud that is part of the Virgo supercluster and harbours our own galaxy. The cloud has the shape of a flat disk, with a thickness of 0.3 Mpc and a radius of about 19 Mpc; it contains both the Local Group as well as several other galaxy clusters, as listed in the following table.
This cloud has the shape of a flat disk, 0.3 Mpc thick and with a radius of about 19 Mpc. This cloud of galaxies contains the Local Group and several galaxy clusters defined by [2], as listed in the following table. "G" stands for the de Vaucouleurs number of the group, "Name" is the proper name used by de Vaucouleurs, "Dist" is the revised distance from [2] (1973) in Mpc, "Brightest" lists the identification of the brightest member galaxy of the group, "B(0)" is the standard face-on B magnitude of that brightest member.
| Number¹ | Name¹ | Distance (Mpc) | Brightest member | B magnitude of brightest member |
|---|---|---|---|---|
| 1 | Sculptor Group | 2.5 | NGC 253 | 8.1 |
| 2 | M81 group of galaxies | 3.0 | M81 | 7.9 |
| 3 | CVn I | 4.5 | NGC 4736 | 8.9 |
| 4 | NGC 5128 group | 4.0 | NGC 5236 | 8.2 |
| 5 | M101 group | 5.5 | M101 | 8.6 |
| 10 | CVn II | 7.3 | NGC 4631 | 10.0 |
| 13 | Coma I | 8.1 | NGC 4725 | 10.2 |
| 17 | UMa I (Z) | 11.8 | NGC 4151 | 11.5 |
| 24 | UMa I (Y) | 14.7 | NGC 3776 | 11.1 |
| 28 | UMa I (X) | 10.7 | NGC 3310 | 11.2 |
| 32 | UMa I (S) | 15.2 | NGC 3938 | 11.0 |
| 34 | UMa I (N) | 12.8 | NGC 3992 | 10.8 |
| 41 | NGC 2768 group | 13.7 | NGC 2768 | 11.5 |
Notes
1. Following de Vaucouleurs
External links
- R. Brent Tully: The Local Supercluster, Astrophys. J., vol. 257, pp. 389-422 (1982)
- G. de Vaucouleurs Nearby Groups of Galaxies, Chapter 14 in Galaxies and the Universe, Volume 9 of Stars and Stellar Systems University of Chicago Press (Midway Reprint), ISBN 0-226-45970-5 (1975).