The Brightest Open Clusters in the Sky

Name Constellation Magnitude
Name Constellation Magnitude
1 Collinder 173 Puppis 0.6
2 Orion's Belt Orion 0.6
3 Antares Cluster Scorpius 1.0
4 C41 Taurus 1.0
5 Alpha Persei Cluster Perseus 1.2
6 Collinder 39 Perseus 1.2
7 M45 Taurus 1.3
8 Coma Star Cluster Coma Berenices 1.8
9 Collinder 256 Coma Berenices 1.8
10 IC 2602 Carina 1.9
11 Collinder 135 Puppis 2.1
12 IC 2391 Vela 2.5
13 NGC 1980 Orion 2.5
14 NGC 6231 Scorpius 2.6
15 Omicron Canis Minorum Cluster Canis Major 2.6
16 Lambda Orionis Cluster Orion 2.8
17 NGC 2451 Puppis 2.8
18 Melotte 186 Ophiuchus 3.0
19 Collinder 359 Ophiuchus 3.0
20 Collinder 65 Orion 3.0
21 NGC 3532 Carina 3.0
22 M44 Cancer 3.1
23 M7 Scorpius 3.3
24 Tuft in the Tail of the Dog Canis Major 3.5
25 Brocchi's Cluster Vulpecula 3.6
26 Collinder 132 Canis Major 3.6
27 NGC 2516 Carina 3.8
28 Collinder 249 Centaurus 4.0
29 IC 2581 Carina 4.0
30 M42 Orion 4.0
31 IC 2395 Vela 4.0
32 NGC 2264 Monoceros 4.1
33 NGC 2362 Canis Major 4.1
34 NGC 2232 Monoceros 4.2
35 NGC 4755 Crux 4.2
36 NGC 3114 Carina 4.2
37 M6 Scorpius 4.2
38 Collinder 62 Auriga 4.2
39 IC 4665 Ophiuchus 4.2
40 NGC 1981 Orion 4.2
41 Collinder 464 Camelopardalis 4.2
42 NGC 869 Perseus 4.3
43 M47 Puppis 4.4
44 Collinder 228 Carina 4.4
45 M41 Canis Major 4.5
46 M39 Cygnus 4.6
47 Collinder 106 Monoceros 4.6
48 IC 4756 Serpens Cauda 4.6
49 M25 Sagittarius 4.6
50 NGC 6633 Ophiuchus 4.6
51 NGC 6530 Sagittarius 4.6
52 NGC 3293 Carina 4.7
53 NGC 2547 Vela 4.7
54 NGC 2239 Monoceros 4.8
55 NGC 2244 Monoceros 4.8
56 Collinder 234 Carina 5.0
57 Collinder 233 Carina 5.0
58 Collinder 203 Vela 5.0
59 Collinder 107 Monoceros 5.1
60 M35 Gemini 5.1
61 NGC 6025 Triangulum Australe 5.1
62 NGC 6193 Ara 5.2
63 M34 Perseus 5.2
64 NGC 6871 Cygnus 5.2
65 NGC 3766 Centaurus 5.3
66 Collinder 411 Octans 5.3
67 NGC 6281 Scorpius 5.4
68 NGC 6087 Norma 5.4
69 Collinder 97 Monoceros 5.4
70 NGC 2281 Auriga 5.4
71 NGC 5662 Centaurus 5.5
72 Collinder 230 Carina 5.5
73 NGC 6374 Scorpius 5.5
74 M23 Sagittarius 5.5
75 NGC 7686 Andromeda 5.6
76 M37 Auriga 5.6
77 NGC 6067 Norma 5.6
78 NGC 5460 Centaurus 5.6
79 Collinder 89 Gemini 5.7
80 NGC 752 Andromeda 5.7
81 NGC 6416 Scorpius 5.7
82 NGC 6885 Vulpecula 5.7
83 NGC 6124 Scorpius 5.8
84 M48 Hydra 5.8
85 M11 Scutum 5.8
86 NGC 2477 Puppis 5.8
87 Collinder 29 Perseus 5.9
88 M50 Monoceros 5.9
89 NGC 6250 Ara 5.9
90 NGC 2169 Orion 5.9
91 NGC 5281 Centaurus 5.9
92 M21 Sagittarius 5.9
93 NGC 6605 Serpens Cauda 6.0
94 M17 Sagittarius 6.0
95 M36 Auriga 6.0
96 M16 Serpens Cauda 6.0
97 NGC 3228 Vela 6.0
98 IC 4703 Serpens Cauda 6.0
99 NGC 5316 Centaurus 6.0
100 NGC 2301 Monoceros 6.0
101 NGC 6322 Scorpius 6.0
102 NGC 1746 Taurus 6.1
103 NGC 884 Perseus 6.1
104 NGC 7160 Cepheus 6.1
105 NGC 2669 Vela 6.1
106 Collinder 202 Vela 6.1
107 M46 Puppis 6.1
108 Collinder 350 Ophiuchus 6.1
109 NGC 1545 Perseus 6.2
110 M93 Puppis 6.2
111 M20 Sagittarius 6.3
112 NGC 6940 Vulpecula 6.3
113 NGC 5617 Centaurus 6.3
114 NGC 2546 Puppis 6.3
115 Collinder 394 Sagittarius 6.3
116 Collinder 91 Monoceros 6.4
117 NGC 457 Cassiopeia 6.4
118 M38 Auriga 6.4
119 Collinder 367 Sagittarius 6.4
120 NGC 1662 Orion 6.4
121 NGC 1647 Taurus 6.4
122 NGC 6242 Scorpius 6.4
123 NGC 7243 Lacerta 6.4
124 NGC 1528 Perseus 6.4
125 NGC 6604 Serpens Cauda 6.5
126 IC 1805 Cassiopeia 6.5
127 NGC 2354 Canis Major 6.5
128 NGC 2539 Puppis 6.5
129 NGC 129 Cassiopeia 6.5
130 NGC 654 Cassiopeia 6.5
131 NGC 2527 Puppis 6.5
132 NGC 5822 Lupus 6.5
133 NGC 1444 Perseus 6.6
134 M29 Cygnus 6.6
135 NGC 6169 Norma 6.6
136 NGC 3572 Carina 6.6
137 Collinder 316 Scorpius 6.6
138 NGC 3324 Carina 6.7
139 NGC 2423 Puppis 6.7
140 NGC 6709 Aquila 6.7
141 Collinder 336 Scorpius 6.7
142 NGC 2129 Gemini 6.7
143 NGC 1342 Perseus 6.7
144 Collinder 197 Vela 6.7
145 NGC 6167 Norma 6.7
146 NGC 7789 Cassiopeia 6.7
147 NGC 1027 Cassiopeia 6.7
148 NGC 2343 Monoceros 6.7
149 IC 1848 Cassiopeia 6.8
150 Collinder 232 Carina 6.8
151 NGC 2175 Orion 6.8
152 NGC 6811 Cygnus 6.8
153 NGC 2439 Puppis 6.9
154 Collinder 299 Norma 6.9
155 M67 Cancer 6.9
156 M18 Sagittarius 6.9
157 NGC 1502 Camelopardalis 6.9
158 M52 Cassiopeia 6.9
159 NGC 4609 Crux 6.9
160 IC 4651 Ara 6.9
161 Collinder 241 Carina 6.9
162 Collinder 111 Monoceros 7.0
163 NGC 1857 Auriga 7.0
164 NGC 2571 Puppis 7.0
165 Collinder 231 Carina 7.0
166 NGC 1807 Taurus 7.0
167 NGC 6595 Sagittarius 7.0
168 Collinder 401 Aquila 7.0
169 NGC 7063 Cygnus 7.0
170 NGC 225 Cassiopeia 7.0
171 NGC 1582 Perseus 7.0
172 Collinder 36 Cassiopeia 7.0
173 Collinder 155 Puppis 7.1
174 Collinder 258 Crux 7.1
175 NGC 6823 Vulpecula 7.1
176 NGC 663 Cassiopeia 7.1
177 NGC 2467 Puppis 7.1
178 NGC 2353 Monoceros 7.1
179 NGC 6208 Ara 7.2
180 NGC 7380 Cepheus 7.2
181 NGC 6425 Scorpius 7.2
182 NGC 2360 Canis Major 7.2
183 NGC 7082 Cygnus 7.2
184 NGC 6178 Scorpius 7.2
185 NGC 4463 Musca 7.2
186 NGC 2910 Vela 7.2
187 NGC 6134 Norma 7.2
188 NGC 2335 Monoceros 7.2
189 Collinder 21 Triangulum 7.3
190 NGC 2482 Puppis 7.3
191 IC 4996 Cygnus 7.3
192 IC 348 Perseus 7.3
193 NGC 6819 Cygnus 7.3
194 NGC 2251 Monoceros 7.3
195 Collinder 96 Monoceros 7.3
196 NGC 2645 Vela 7.3
197 NGC 3330 Vela 7.4
198 NGC 4103 Crux 7.4
199 NGC 6200 Ara 7.4
200 NGC 2567 Puppis 7.4

Fairfield

Latitude:
Longitude:
Timezone:

41.14°N
73.26°W
EST

Color scheme