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1 Selected Small Galaxy Groups 1
2 Selected Small Galaxy Groups 2
3 Observing Selected Small Galaxy Groups Alvin H. Huey Last updated: February 24, 2018 Selected Small Galaxy Groups 3
4 Other books by Alvin H. Huey Hickson Group Observer s Guide, 2 nd edition The Abell Planetary Observer s Guide, 2 nd edition Observing the Arp Peculiar Galaxies Downloadable Guides by FaintFuzzies.com The Local Group Selected Small Galaxy Groups Galaxy Trios and Triple Systems Selected Shakhbazian Groups Globular Clusters Observing Planetary ebulae and Supernovae Remnants Observing the Abell Galaxy Clusters The Rose Catalogue of Compact Galaxies Flat Galaxies Ring Galaxies Variable Galaxies The Voronstov-Velyaminov Catalogue Part I and II Object of the Week 2012 and 2013 Deep Sky Forum Copyright by Alvin Huey All rights reserved Copyright granted to individuals to make single copies of works for private, personal and non-commercial purposes All Maps by MegaStar TM v5 All DSS images (Digital Sky Survey) Front Cover: GC 7331 and companions This and other publications by the author are available through Selected Small Galaxy Groups 4
5 Table of Contents Selected Small Galaxy Groups Index... 6 How to Use the Atlas... 8 Selected Small Galaxy Groups Atlas... 9 Recommended Further Material Revision History Selected Small Galaxy Groups 5
6 Selected Small Galaxy Groups Index Page Brightest Member Other ID RA Dec Const Mag1 # 10 GC 3 Includes Arp Psc GC 383 Pisces chain Psc GC Psc GC Cet GC 439 AGC Scl IC And GC 68 Includes Arp And GC 80 Includes Arp And GC 1129 AWM Per GC 1399 AGC For GC Gem GC Lyn GC 2804 AWM Cnc GC UMa GC 3090 MKW Sex CGCG 9-42 MKW 2s Sex MCG MKW Sex UGC 4956 MKW 1s Hyd GC LMi GC Leo GC Leo M 66 Arp 16 and Leo IC Leo GC Leo GC Leo M CVn IC 4064 AWM CVn GC CVn GC Com GC 4104 MKW 4s Com GC 4213 AWM Com M Com MCG GC 3822 Part of GC 3724 group MKW 10 (inc. Hickson 58) Crt Vir CGCG MKW Vir GC 4073 MKW Vir GC Vir M Vir M Vir M Vir Selected Small Galaxy Groups 6
7 Page Brightest Member Other ID RA Dec Const Mag1 # 90 M Vir GC Vir GC 5171 MKW Vir GC 5400 MKW Vir MCG MKW Vir UGC 9371 MKW Vir GC 5718 MKW Vir GC Vir IC 4349 Includes Hickson Boo GC 5434 MKW Boo GC 5490 Includes Arp 79 and Boo GC 5629 AWM Boo GC Boo GC 5754 Includes Arp Boo UGC Boo GC 5920 MKW 3s Ser UGC 9887 MKW Ser GC 6051 AWM Ser GC 6269 AWM Her GC Dra GC Dra GC Dra GC Aqr GC Aqr ? 138 GC 7103 Center of AGC Cap GC 7331 Deer Lick group Peg GC Peg GC Peg GC 7619 Pegasus I group Peg Other ID Hickson Hickson Galaxy Group Catalog number ( AGC Abell Galaxy Cluster MKW The catalog number of poor clusters in Morgan, Kayser and White s paper. See page 148 for reference AWM The catalog number of poor clusters (II) in Albert, Whites and Morgan s paper. See page 148 for reference Selected Small Galaxy Groups 7
8 Cetus Pisces Pegasus How to Use the Atlas E E GC 3 (Pisces) 2h 1h 0h 23h 22h UGC 66 UGC 52 GC 3 Left page The top panel is the naked eye field with the TelRad TM superimposed on the center of the Galaxy Group. The bottom panel is a finder field of about 4.5 across and 3.0 high. The finder field is wide enough for the finder scope and detailed enough for those who choose to use a low power eyepiece as a finder, like I do. The limiting magnitude of the field stars is typically set to 12.0, otherwise at 11.0 for star rich regions. The field of the DSS image is superimposed on the finder chart. GC 3 (Pisces) GC 7816 GC 7824 Right page The field of the DSS image is noted at the bottom. Ranges from 15 x 15 to 60 x 60. on MAC galaxies are labeled and most unlabeled galaxies are MAC galaxies. I purposely didn t label all of them to minimize clutter. A table provided below lists the following: RA and Dec in Epoch of the center of the field Mag1 the listed magnitude of the brightest galaxy of the group. # of galaxies number as published RA Dec Mag1 # of galaxies Any comments or if you want to share any observations. Please send them to Alvin@FaintFuzzies.com Selected Small Galaxy Groups 8
9 Selected Small Galaxy Groups Atlas Selected Small Galaxy Groups 9
10 E GC 3 (Pisces) E GC 7816 Selected Small Galaxy Groups 10
11 GC 3 (Pisces) RA Dec Mag1 # of galaxies Includes Arp 246 Selected Small Galaxy Groups 11
12 E GC 383 (Pisces) E GC 410 GC 379 GC 385 Selected Small Galaxy Groups 12
13 GC 383 (Pisces) RA Dec Mag1 # of galaxies Pisces Chain Selected Small Galaxy Groups 13
14 E GC 507 (Pisces) E GC 536 GC 499 GC 507 Selected Small Galaxy Groups 14
15 GC 507 (Pisces) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 15
16 E GC 329 (Cetus) E MCG GC 352 GC 329 GC 327 GC 268 MCG MCG GC 357 Selected Small Galaxy Groups 16
17 GC 329 (Cetus) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 17
18 E GC 439 (Sculptor) E GC 418 IC 1637 GC 439 GC 441 IC 1657 Selected Small Galaxy Groups 18
19 GC 439 (Sculptor) Other ID RA Dec Mag1 # of galaxies AGC Selected Small Galaxy Groups 19
20 E IC 5370 (Andromeda) E GC 29 GC 13 GC 20 GC 21 GC 7831 Selected Small Galaxy Groups 20
21 IC 5370 (Andromeda) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 21
22 E GC 68 (Andromeda) E GC 43 GC 97 GC 68 GC 72 GC 76 GC 108 Selected Small Galaxy Groups 22
23 GC 68 (Andromeda) Includes Arp 113 RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 23
24 E GC 80 (Andromeda) E GC 93 GC 80 Selected Small Galaxy Groups 24
25 GC 80 (Andromeda) Includes Arp 65 RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 25
26 E GC 1129 (Perseus) E GC 1186 IC 284 GC 1122 GC 1198 GC 1129 GC 1106 GC 1086 UGC 2185 Selected Small Galaxy Groups 26
27 GC 1129 (Perseus) Other ID RA Dec Mag1 # of galaxies AWM Selected Small Galaxy Groups 27
28 E GC 1399 (Fornax) E GC 1380 GC 1399 GC 1404 GC 1365 Selected Small Galaxy Groups 28
29 GC 1399 (Fornax) Center of Abell Galaxy Cluster 373 RA Dec Mag1 # of galaxies Many Selected Small Galaxy Groups 29
30 E GC 2289 (Gemini) E GC 2294 GC 2289 GC 2274 Selected Small Galaxy Groups 30
31 GC 2289 (Gemini) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 31
32 E GC 2340 (Lynx) E UGC 3792 GC 2326 GC 2320 GC 2332 GC 2340 UGC 3725 UGC 3831 Selected Small Galaxy Groups 32
33 GC 2340 (Lynx) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 33
34 E GC 2804 (Cancer) E GC 2764 GC 2804 GC 2809 Selected Small Galaxy Groups 34
35 GC 2804 (Cancer) Other ID RA Dec Mag1 # of galaxies AWM Selected Small Galaxy Groups 35
36 E GC 2998 (URSA Major) E GC 2998 Selected Small Galaxy Groups 36
37 GC 2998 (URSA Major) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 37
38 E GC 3090 (Sextans) E GC 3090 Selected Small Galaxy Groups 38
39 GC 3090 (Sextans) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 39
40 E CGCG 9-42 (Sextans) E UGC 5745 GC 3243 CGCG 9-62 CGCG 9-18 Selected Small Galaxy Groups 40
41 CGCG 9-42 (Sextans) Other ID RA Dec Mag1 # of galaxies MKW2s Selected Small Galaxy Groups 41
42 E MCG (Sextans) E UGC 5745 GC 3243 CGCG 9-62 CGCG 9-18 IC 627 Selected Small Galaxy Groups 42
43 MCG (Sextans) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 43
44 E UGC 4956 (Hydra) E GC 2861 UGC 4956 Selected Small Galaxy Groups 44
45 UGC 4956 (Hydra) Other ID RA Dec Mag1 # of galaxies MKW 1s Selected Small Galaxy Groups 45
46 E GC 3158 (Leo Minor) E GC 3158 GC 3159 GC 3163 Selected Small Galaxy Groups 46
47 GC 3158 (Leo Minor) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 47
48 E GC 2943 (Leo) E GC 2943 UGC 5213 Selected Small Galaxy Groups 48
49 GC 2943 (Leo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 49
50 E GC 3607 (Leo) E GC 3626 GC 3608 GC 3599 GC GC GC 3659 GC 3655 Selected Small Galaxy Groups 50
51 GC 3607 (Leo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 51
52 E M 66 (Leo) E GC 3628 M 66 M 65 GC 3593 Selected Small Galaxy Groups 52
53 M 66 (Leo) RA Dec Mag1 # of galaxies Includes Arp 16 and Arp 317 Selected Small Galaxy Groups 53
54 E IC 696 (Leo) E GC 3705 GC 3692 Selected Small Galaxy Groups 54
55 IC 696 (Leo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 55
56 E GC 3801 (Leo) E GC 3827 UGC 6670 GC 3802 GC 3801 GC 3768 GC 3853 Selected Small Galaxy Groups 56
57 GC 3801 (Leo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 57
58 E GC 4005 (Leo) E GC 3912 GC 3997 GC 3987 GC 4005 Selected Small Galaxy Groups 58
59 GC 4005 (Leo) Includes Arp 138 RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 59
60 E M 106 (Canes Venatici) E GC 4357 MCG GC 4218 GC 4220 GC 4248 M 106 GC 4096 GC 4346 GC 4217 GC 4144 GC 4288 Selected Small Galaxy Groups 60
61 M 106 (Canes Venatici) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 61
62 E IC 4064 (Canes Venatici) E M 94 Selected Small Galaxy Groups 62
63 IC 4064 (Canes Venatici) Other ID RA Dec Mag1 # of galaxies AWM Selected Small Galaxy Groups 63
64 E GC 5280 (Canes Venatici) E GC 5280 M 3 Selected Small Galaxy Groups 64
65 GC 5280 (Canes Venatici) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 65
66 E GC 4065 (Coma Berenices) E GC 4158 GC 4066 GC 4065 GC 4032 Selected Small Galaxy Groups 66
67 GC 4065 (Coma Berenices) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 67
68 E GC 4104 (Coma Berenices) E GC 4170 GC 4169 GC 4134 UGC 7072 GC 4185 GC 4196 GC 4104 GC 4008 GC 4016 GC 4017 Selected Small Galaxy Groups 68
69 GC 4104 (Coma Berenices) Other ID RA Dec Mag1 # of galaxies MKW 4s Selected Small Galaxy Groups 69
70 E GC 4213 (Coma Berenices) E GC 4213 GC 4162 Selected Small Galaxy Groups 70
71 GC 4213 (Coma Berenices) Other ID RA Dec Mag1 # of galaxies AWM Selected Small Galaxy Groups 71
72 E M 100 (Coma Berenices) E GC 4450 GC 4350 M 100 GC 4421 GC 4237 GC 4262 M 98 M 88 GC 4298 GC 4302 M 99 Selected Small Galaxy Groups 72
73 M 100 (Coma Berenices) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 73
74 E MCG (Crater) E GC 3688 MCG GC 3771 MCG GC 3789 GC 3763 GC 3732 IC 2910 MCG MCG Selected Small Galaxy Groups 74
75 MCG (Crater) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 75
76 E GC 3822 (Virgo) E GC 3810 GC 3869 GC 3817 GC 3825 GC 3876 IC 724 Selected Small Galaxy Groups 76
77 GC 3822 (Virgo) Other ID RA Dec Mag1 # of galaxies MKW 10 Hickson Selected Small Galaxy Groups 77
78 E CGCG (Virgo) E GC 4006 UGC 6958 GC 3979 CGCG GC 3952 IC 2969 MCG MCG IC 741 Selected Small Galaxy Groups 78
79 CGCG (Virgo) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 79
80 E GC 4073 (Virgo) E GC 4123 GC 4116 GC 4073 GC 4045 UGC 6903 Selected Small Galaxy Groups 80
81 GC 4073 (Virgo) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 81
82 E GC 4261 (Virgo) E GC 4365 GC 4235 GC 4241 GC 4430 GC 4215 GC 4339 GC 4260 GC 4264 GC 4261 GC 4324 GC 4281 GC 4273 GC 4268 GC 4378 M 61 GC 4292 Selected Small Galaxy Groups 82
83 GC 4261 (Virgo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 83
84 E M 86 (Virgo) E M 88 M 99 GC 4459 GC 4477 GC 4473 GC 4458 GC 4461 GC 4435 GC 4438 M 86 M 84 GC 4425 GC 4388 GC 4267 M 87 GC 4371 Selected Small Galaxy Groups 84
85 M 86 (Virgo) Center of Virgo Supercluster RA Dec Mag1 # of galaxies many Selected Small Galaxy Groups 85
86 E M 49 (Virgo) E GC 4535 M 49 GC 4526 GC 4570 GC 4365 Selected Small Galaxy Groups 86
87 M 49 (Virgo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 87
88 E M 87 (Virgo) E GC 4477 M 90 M 89 GC 4473 GC 4458 GC 4461 GC 4435 GC 4438 M 86 M 84 GC 4425 GC 4388 M 87 M 58 GC 4371 GC 4568 GC 4429 Selected Small Galaxy Groups 88
89 M 87 (Virgo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 89
90 E M 60 (Virgo) E M 89 M 58 GC 4754 M 59 GC 4647 M 60 GC 4568 GC 4733 GC 4694 GC 4596 GC 4608 Selected Small Galaxy Groups 90
91 M 60 (Virgo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 91
92 E GC 5044 (Virgo) E GC 4984 GC 5044 GC 5054 GC 5037 GC 5017 MCG Selected Small Galaxy Groups 92
93 GC 5044 (Virgo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 93
94 E GC 5171 (Virgo) E GC 5171 GC 5174 Selected Small Galaxy Groups 94
95 GC 5171 (Virgo) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 95
96 E GC 5400 (Virgo) E GC 5345 GC 5327 GC 5400 CGCG Selected Small Galaxy Groups 96
97 GC 5400 (Virgo) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 97
98 E MCG (Virgo) E GC 5577 GC 5576 GC 5574 IC 989 UGC 9215 Selected Small Galaxy Groups 98
99 MCG (Virgo) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 99
100 E UGC 9371 (Virgo) E IC 1048 GC 5619 GC 5668 GC 5718 GC 5692 GC 5636 GC 5638 IC 1024 GC 5690 Selected Small Galaxy Groups 100
101 UGC 9371 (Virgo) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 101
102 E GC 5718 (Virgo) E IC 1048 GC 5668 GC 5718 GC 5692 GC 5690 Selected Small Galaxy Groups 102
103 GC 5718 (Virgo) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 103
104 E GC 5846 (Virgo) E GC 5838 GC 5846 GC 5850 GC 5813 GC 5831 Selected Small Galaxy Groups 104
105 GC 5846 (Virgo) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 105
106 E IC 4349 (Bootes) E UGC 8763 Selected Small Galaxy Groups 106
107 IC 4349 (Bootes) Includes Hickson 69 RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 107
108 E GC 5434 (Bootes) E GC 5434 GC 5416 Selected Small Galaxy Groups 108
109 GC 5434 (Bootes) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 109
110 E GC 5490 (Bootes) E IC 983 GC 5490 Selected Small Galaxy Groups 110
111 GC 5490 (Bootes) RA Dec Mag1 # of galaxies Includes Arp 79 and Arp 117 Selected Small Galaxy Groups 111
112 E GC 5629 (Bootes) E GC 5629 Selected Small Galaxy Groups 112
113 GC 5629 (Bootes) Other ID RA Dec Mag1 # of galaxies AWM Selected Small Galaxy Groups 113
114 E GC 5714 (Bootes) E GC 5633 Selected Small Galaxy Groups 114
115 GC 5714 (Bootes) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 115
116 E GC 5754 (Bootes) E GC 5754 UGC 9473 GC 5698 Selected Small Galaxy Groups 116
117 GC 5754 (Bootes) Includes Arp 297 gc RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 117
118 E UGC 9521 (Bootes) E GC 5762 Selected Small Galaxy Groups 118
119 UGC 9521 (Bootes) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 119
120 E GC 5920 (Serpens) E IC 1116 GC 5919 UGC 9799 Selected Small Galaxy Groups 120
121 GC 5920 (Serpens) Other ID RA Dec Mag1 # of galaxies MKW 3s Selected Small Galaxy Groups 121
122 E UGC 9887 (Serpens) E GC 5964 UGC 9945 Selected Small Galaxy Groups 122
123 UGC 9887 (Serpens) Other ID RA Dec Mag1 # of galaxies MKW Selected Small Galaxy Groups 123
124 E GC 6051 (Serpens) E GC 6051 Selected Small Galaxy Groups 124
125 GC 6051 (Serpens) Other ID RA Dec Mag1 # of galaxies AWM Selected Small Galaxy Groups 125
126 E GC 6269 (Hercules) E MAC MCG GC 6269 MAC MAC A IC 4630 Selected Small Galaxy Groups 126
127 GC 6269 (Hercules) Other ID RA Dec Mag1 # of galaxies AWM Selected Small Galaxy Groups 127
128 E GC 6211 (Draco) E IC 1231 GC 6190 UGC GC 6211 UGC Selected Small Galaxy Groups 128
129 GC 6211 (Draco) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 129
130 E GC 6338 (Draco) E UGC UGC GC 6385 GC 6338 GC 6370 Selected Small Galaxy Groups 130
131 GC 6338 (Draco) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 131
132 E GC 6472 (Draco) E MCG MCG UGC GC 6472 CGCG GC 6543 GC 6552 Selected Small Galaxy Groups 132
133 GC 6472 (Draco) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 133
134 E GC 6962 (Aquarius) E GC 6962 Selected Small Galaxy Groups 134
135 GC 6962 (Aquarius) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 135
136 E GC 7184 (Aquarius) E GC 7188 GC 7185 GC 7180 GC 7184 Selected Small Galaxy Groups 136
137 GC 7184 (Aquarius) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 137
138 E GC 7103 (Capricornus) E Pal 12 GC 7103 M 30 ESO Selected Small Galaxy Groups 138
139 GC 7103 (Capricornus) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 139
140 E GC 7331 (Pegasus) E UGC GC 7315 GC 7331 GC 7320 GC GC 7318B GC UGC Selected Small Galaxy Groups 140
141 GC 7331 (Pegasus) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 141
142 E GC 7385 (Pegasus) E GC 7386 GC 7385 GC 7383 Selected Small Galaxy Groups 142
143 GC 7385 (Pegasus) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 143
144 E GC 7436 (Pegasus) E UGC GC 7433 GC 7436 Selected Small Galaxy Groups 144
145 GC 7436 (Pegasus) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 145
146 E GC 7619 (Pegasus) E GC 7626 GC 7619 GC 7611 Selected Small Galaxy Groups 146
147 GC 7619 (Pegasus) RA Dec Mag1 # of galaxies Selected Small Galaxy Groups 147
148 Recommended Further Material Recommended Reading Burnham, Robert Burnham s Celestial Handbook, Vol. 1 to 3. Dover Books, ew York,.Y. Coe, Steven R Deep Sky Observing. The Astronomical Tourist. Springer Publishing Company,.Y. Eicher, David J Galaxies and the Universe. Kalmbach Publishing Co., W.I. Houston, Walter Scott 1999; Deep-Sky Wonders, Sky Publishing Corp. Cambridge, MA Kepple, George R. and Glen W The ight Sky Observer s Guide, Vol. 1 and 2. Willmann-Bell, Richmond, VA. Luginbuhl, Christian B. and Brian A. Skiff Observing Handbook and Catalogue of Deep-Sky Objects. Cambridge University Press,.Y. Steinicke, Wolfgang and Richard Jakiel Galaxies and How to Observe Them. Springer Publishing Company,.Y. Webb Society 1982; Webb Society Deep-Sky Observer s Handbook, Volume 4 Galaxies Enslow Publishers Hillside,.J. Webb Society 1982; Webb Society Deep-Sky Observer s Handbook, Volume 5 Clusters of Galaxies Enslow Publishers Hillside,.J. Papers Morgan, W.W., Kayser, S., White, R.A. cd Galaxies in Poor Clusters, The Astrophysical Journal, 199: , 1975 August 1 Albert, C.E., White R.A. and Morgan W.W., cd Galaxies in Poor Clusters II, The Astrophysical Journal, 211: , 1977 January 15 Hickson, P. Compact Groups of Galaxies, Annu. Rev. Astron. Astrophys. 35: , 1997 Selected Small Galaxy Groups 148
149 Recommended Internet Sites - The premier Deep Sky forum where advanced deep sky observers converge and discuss observing the deep sky - Great source of observing projects for all skill levels. - ASA-IPAC Extragalactic Database ED - The STScI Digitized Sky Survey - SkyServer DR8 Tools for Visual Exploration (SDSS) Great resource for like-minded amateurs discussing most aspects of the hobby. Galaxy Zoo Sources of charts and images Charts by Megastar version 5 Willmann-Bell Richmond, VA DSS images (Digital Sky Survey) Selected Small Galaxy Groups 149
150 Revision History Date April 28, 2010 Revision Added 11 new small galaxy groups; o MCG o GC 4213 o IC 4064 o GC 3822 o MCG o GC 5629 o UGC 9887 o UGC 4956 o CGCG 9-42 o GC 5920 o GC 4104 Added research papers August 31, 2012 Enhanced magnitude scaling of finder charts. March 22, 2013 March 26, 2013 April 12, 2013 Feb 24, 2018 Enhanced readability of all DSS images. Refreshed finder charts to align with DSS images. Very minor enhancements Enhanced TOC Moved the index to the beginning Enhanced recommended reading section. Minor edits mainly to the How to Use section. Added Front Cover Removed Arp 138 from Index. Typo. Inadvertently added to GC 4065, whereas Arp 138 is actually GC 4015 as indicated on page 59. Selected Small Galaxy Groups 150
151 otes Selected Small Galaxy Groups 151
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