mirrored file at http://SaturnianCosmology.Org/ For complete access to all the files of this collection see http://SaturnianCosmology.org/search.php ========================================================== - _The Nearest Groups of Galaxies_ This is a map of galaxies that lie within 20 million light years plotted onto the supergalactic plane. Nearly all of the nearby galaxies lie near this plane (the supergalactic coordinate system was originally invented because many nearby galaxy groups lie close to this plane.) All of the brightest and largest galaxies within 20 million light years are marked on this map together with many of the fainter dwarf galaxies. Nearby galaxy groups ------------------------------------------------------------------------ Digitized Sky Survey image Left - NGC 1313, a bright but rather isolated galaxy classified as a barred spiral galaxy (although with very short and irregular spiral arms). This galaxy has recently (within the past billion years) collided with a satellite galaxy, and the material at the bottom-right of this picture are the remains of the satellite galaxy. ------------------------------------------------------------------------ A list of Galaxies within 20 million light years This is a list of all the brighter and larger galaxies within 20 million light years. Most of these distances have been determined by Igor Karachentsev and his colleagues at the Special Astrophysical Observatory in Russia who specialise in studying the neighbouring galaxy groups. Some of these galaxies still have uncertain distances, especially the Maffei group galaxies and also some galaxies in the far southern hemisphere which cannot be seen by Russian telescopes. 1 2 3 4 5 6 7 8 9 10 Catalog Equatorial Supergalactic Group Blue Type Size Distance Name Coordinates Coordinates Mag kly Mly RA Dec L° B° NGC45 00 13.9 -23 10 271.4 +2.9 11.03 Sc 35 14.2 NGC55 00 15.0 -39 12 256.3 -2.4 Sculptor 8.42 Irr 45 4.9 M31,NGC224 00 42.7 +41 16 336.2 12.5 Local 4.36 Sb 140 2.6 NGC247 00 47.2 -20 46 275.9 -3.7 Sculptor 9.67 Sc 50 8.1 NGC253 00 47.6 -25 18 271.6 -5.0 Sculptor 8.04 Sc 100 12.9 SMC 00 52.7 -72 50 224.2 -14.8 Local 2.70 Irr 15 0.2 NGC300 00 55.0 -37 42 259.8 -9.5 Sculptor 8.72 Sc 45 7.1 NGC404 01 09.5 +35 43 331.9 6.2 11.21 S0 10 10.8 M33,NGC598 01 33.8 +30 39 328.5 -0.1 Local 6.27 Sc 60 2.9 NGC625 01 35.1 -41 26 257.3 -17.7 11.71 Irr 20 13? NGC784 02 01.3 +28 50 328.8 -6.3 12.23 Sd 30 16.3 Maffei I 02 36.3 +59 39 359.3 1.5 Maffei 14.5 E >20 14.4 Maffei II 02 41.9 +59 36 359.6 0.8 Maffei 16.0 Sb >25 12? Dwingeloo 1 02 56.9 +58 55 0.0 -1.2 Maffei 18.8 Sb >25 16.3 NGC1313 03 18.2 -66 30 228.0 -28.2 9.20 Sc 35 13.5 IC342 03 46.9 +68 05 10.6 0.4 Maffei 9.10 Sc 50 8.1 NGC1569 04 30.8 +64 50 11.9 -4.9 Maffei 11.86 Irr 5 5.8 NGC1560 04 32.8 +71 52 16.0 0.8 Maffei 12.16 Sc 35 12.6 LMC 05 23.6 -69 45 215.8 -34.1 Local 0.91 Irr 30 0.2 NGC2366 07 28.9 +69 12 29.5 -4.9 M81 11.43 Irr 25 11.2 NGC2403 07 36.8 +65 36 30.8 -8.3 M81 8.93 Sc 70 10.6 UGC4305,HoII 08 19.1 +70 43 33.3 -2.4 M81 11.10 Irr 25 10.9 NGC2976 09 47.3 +67 55 41.3 -0.8 M81 10.82 Sc 25 14.8 M81,NGC3031 09 55.6 +69 04 41.1 0.6 M81 7.89 Sa 90 12.0 M82,NGC3034 09 55.8 +69 41 40.7 1.1 M81 9.30 Irr 40 12.0 NGC3077 10 03.4 +68 44 41.9 0.8 M81 10.61 Irr 20 12.2 NGC3109 10 03.1 -26 10 137.9 -45.1 Local 10.39 Irr 25 4.1 IC2574 10 28.4 +68 25 43.6 2.3 M81 10.80 Irr 50 12.4 NGC3738 11 35.8 +54 31 59.6 1.8 Canes I 12.13 Irr 10 12.6 NGC4214 12 15.6 +36 19 79.0 1.6 Canes I 10.24 Irr 35 13.4 NGC4236 12 16.8 +69 28 47.1 11.4 M81 10.05 Sd 70 10.5 NGC4244 12 17.5 +37 48 77.7 2.4 Canes I 10.88 Sc 70 14.7 NGC4395 12 25.9 +33 32 82.3 2.7 Canes I 10.64 Irr 50 14.4 NGC4449 12 28.2 +44 05 72.3 6.2 Canes I 9.99 Irr 20 12.6 NGC4605 12 40.0 +61 37 55.5 12.0 10.89 Sc 30 16.9 M94,NGC4736 12 51.0 +41 07 76.2 9.5 Canes I 8.99 Sa 60 17.0 NGC4945 13 05.4 -49 28 165.2 -10.2 NGC5128 9.30 Sc 90 15? NGC5023 13 12.2 +44 02 74.0 13.9 Canes I 12.85 Sc 30 17.6 NGC5102 13 21.9 -36 38 153.4 -4.1 NGC5128 10.35 S0 30 12.1 NGC5128 13 25.4 -43 01 159.8 -5.2 NGC5128 7.84 S0 90 12.4 NGC5204 13 29.6 +58 26 59.4 17.8 11.73 Irr 20 14.8 M83,NGC5236 13 37.0 -29 52 147.9 1.0 NGC5128 8.20 Sc 60 15.2 NGC5253 13 39.9 -31 38 149.8 1.0 NGC5128 10.87 Irr 15 11.7 Circinus 14 13.2 -65 20 183.1 -6.4 12.10 Sb 25 12? ESO274-01 15 14.2 -46 49 171.6 10.3 NGC5128 11.70 Sc 55 16? IC4662 17 47.1 -64 38 199.2 8.6 11.74 Irr 5 6.5 NGC6503 17 49.5 +70 08 33.1 34.6 10.91 Sc 35 17.0 NGC7793 23 57.9 -32 35 261.3 3.1 Sculptor 9.63 Sc 35 11.9 Column 1: Name of the galaxy. Column 2: The Right Ascension in hours and minutes for epoch 2000. Column 3: The declination in degrees and minutes for epoch 2000. Column 4: Supergalactic longitude. Column 5: Supergalactic latitude. Column 6: The group the galaxy belongs to. Column 7: The blue apparent magnitude of the galaxy. Column 8: The galaxy type. E=Elliptical; S0=Lenticular; Sa,Sb,Sc,Sd=Spiral; Irr=Irregular. Column 9: Approximate diameter of the galaxy in thousands of light years. Column 10: The distance to the galaxy in millions of light years from one of the references below. The error on these distances can be as large as ±20%. References: Karachentsev I, Grebel E, Sharina M, Dolphin A, Geisler D, Guhathakurta P, Hodge P, Karachentseva V, Sarajedini A, Seitzer P, (2003), Distances to nearby galaxies in Sculptor, Astron Astrophys, 404, 93. Karachentsev I, Sharina M, Dolphin A, E. Grebel K, Geisler D,Guhathakurta P, Hodge P, Karachentseva V, Sarajedini A, Seitzer P, (2003), Galaxy Flow in the Canes Venatici I Cloud. Astron Astrophys, 398, 467. Méndez B, Davis M, Moustakas J, Newman J, Madore B, Freedman W, (2002), Deviations from the Local Hubble Flow. I. The Tip of the Red Giant Branch as a Distance Indicator, Astron J, 124, 213. Davidge T, van den Bergh S, (2001), The Detection of Bright Asymptotic Giant Branch Stars in the Nearby Elliptical Galaxy Maffei 1. Astrophys J 553, L133. Tonry J, Dressler A, Blakeslee J, Ajhar E, Fletcher A, Luppino G, Metzger M, Moore C, (2001), The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances. Astrophys J, 546, 681. Ferrarese L, et al, (2000), The HST Key Project on the Extragalactic Distance Scale XXVI. The Calibration of Population II Secondary Distance Indicators and the Value of the Hubble Constant. Astrophys J, 529, 745. Drozdovsky I., Karachentsev I., (2000), Photometric distances to six bright resolved galaxies. Astron Astrophys Supp, 142, 425. Karachentsev I, Makarov D, Huchtmeier W, (1999), HI properties of nearby galaxies from a volume-limited sample. Astron Astrophys Supp, 139, 97. Makarova L, (1999), Multi-colour photometry of nearby dwarf galaxies, Astron Astrophys Supp, 139, 491. Karachentsev I, Drozdovsky I, (1998), Distances to five resolved galaxies in the Canes Venatici cloud, Astron Astrophys Supp, 131, 1. Makarova L, Karachentsev I, (1998) CCD imaging of twenty nearby isolated irregular galaxies. Astron Astrophys, Supp, 133, 181. Jerjen H, Freeman K, Binggeli B, (1998), SBF distances to Dwarf Elliptical Galaxies in the Sculptor Group. Astron J, 116, 2873. Karachentsev I, Sharina M, (1997), Distance to the spiral galaxy NGC 6503 situated in the Local Void. Astron Astrophys, 324, 457. Makarova L, Karachentsev I, Georgiev, Ts., (1997), Distances to six irregular galaxies in the Canes Venatici cluster from the brightest stars, Astron Letters, 23, 378. Schmidt K., Karachentsev I, (1996), Nearby galaxies. IV. The global Hubble parameter and the dispersion of the Hubble relation. Astron Nachr, 317, 197. Schmidt K, Priebe A, Boller T, (1993), Nearby Galaxies. Astron Nachr 314, 371. Heydari-Malayeri M, Melnick J, Martin J, (1990), Star formation in the irregular galaxy IC 4662. Astron Astrophys, 234, 99. Digitized Sky Survey image Above is a black and white photograph of the centre of the M81 group showing five of the major galaxies in this group. The Virgo supercluster Back to the Virgo Supercluster page -