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 C41 Taurus 1.0
4 Antares Cluster Scorpius 1.0
5 Collinder 39 Perseus 1.2
6 Alpha Persei Cluster 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 Omicron Canis Minorum Cluster Canis Major 2.6
15 NGC 6231 Scorpius 2.6
16 Lambda Orionis Cluster Orion 2.8
17 NGC 2451 Puppis 2.8
18 Melotte 186 Ophiuchus 3.0
19 NGC 3532 Carina 3.0
20 Collinder 359 Ophiuchus 3.0
21 Collinder 65 Orion 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 Collinder 132 Canis Major 3.6
26 Brocchi's Cluster Vulpecula 3.6
27 NGC 2516 Carina 3.8
28 IC 2395 Vela 4.0
29 M42 Orion 4.0
30 Collinder 249 Centaurus 4.0
31 IC 2581 Carina 4.0
32 NGC 2264 Monoceros 4.1
33 NGC 2362 Canis Major 4.1
34 NGC 4755 Crux 4.2
35 NGC 3114 Carina 4.2
36 Collinder 464 Camelopardalis 4.2
37 M6 Scorpius 4.2
38 NGC 2232 Monoceros 4.2
39 NGC 1981 Orion 4.2
40 Collinder 62 Auriga 4.2
41 IC 4665 Ophiuchus 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 NGC 6633 Ophiuchus 4.6
47 M25 Sagittarius 4.6
48 NGC 6530 Sagittarius 4.6
49 Collinder 106 Monoceros 4.6
50 M39 Cygnus 4.6
51 IC 4756 Serpens Cauda 4.6
52 NGC 2547 Vela 4.7
53 NGC 3293 Carina 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 NGC 6025 Triangulum Australe 5.1
60 M35 Gemini 5.1
61 Collinder 107 Monoceros 5.1
62 M34 Perseus 5.2
63 NGC 6871 Cygnus 5.2
64 NGC 6193 Ara 5.2
65 Collinder 411 Octans 5.3
66 NGC 3766 Centaurus 5.3
67 NGC 6281 Scorpius 5.4
68 NGC 6087 Norma 5.4
69 NGC 2281 Auriga 5.4
70 Collinder 97 Monoceros 5.4
71 NGC 6374 Scorpius 5.5
72 M23 Sagittarius 5.5
73 Collinder 230 Carina 5.5
74 NGC 5662 Centaurus 5.5
75 NGC 5460 Centaurus 5.6
76 NGC 7686 Andromeda 5.6
77 NGC 6067 Norma 5.6
78 M37 Auriga 5.6
79 NGC 6416 Scorpius 5.7
80 NGC 6885 Vulpecula 5.7
81 Collinder 89 Gemini 5.7
82 NGC 752 Andromeda 5.7
83 M48 Hydra 5.8
84 M11 Scutum 5.8
85 NGC 2477 Puppis 5.8
86 NGC 6124 Scorpius 5.8
87 NGC 6250 Ara 5.9
88 Collinder 29 Perseus 5.9
89 NGC 5281 Centaurus 5.9
90 M21 Sagittarius 5.9
91 NGC 2169 Orion 5.9
92 M50 Monoceros 5.9
93 M36 Auriga 6.0
94 M16 Serpens Cauda 6.0
95 NGC 5316 Centaurus 6.0
96 NGC 6322 Scorpius 6.0
97 NGC 2301 Monoceros 6.0
98 NGC 6605 Serpens Cauda 6.0
99 IC 4703 Serpens Cauda 6.0
100 M17 Sagittarius 6.0
101 NGC 3228 Vela 6.0
102 NGC 2669 Vela 6.1
103 M46 Puppis 6.1
104 NGC 1746 Taurus 6.1
105 NGC 7160 Cepheus 6.1
106 Collinder 202 Vela 6.1
107 NGC 884 Perseus 6.1
108 Collinder 350 Ophiuchus 6.1
109 NGC 1545 Perseus 6.2
110 M93 Puppis 6.2
111 Collinder 394 Sagittarius 6.3
112 NGC 2546 Puppis 6.3
113 M20 Sagittarius 6.3
114 NGC 6940 Vulpecula 6.3
115 NGC 5617 Centaurus 6.3
116 NGC 1662 Orion 6.4
117 NGC 1647 Taurus 6.4
118 NGC 6242 Scorpius 6.4
119 Collinder 91 Monoceros 6.4
120 NGC 7243 Lacerta 6.4
121 Collinder 367 Sagittarius 6.4
122 NGC 1528 Perseus 6.4
123 NGC 457 Cassiopeia 6.4
124 M38 Auriga 6.4
125 NGC 129 Cassiopeia 6.5
126 NGC 654 Cassiopeia 6.5
127 NGC 5822 Lupus 6.5
128 NGC 2354 Canis Major 6.5
129 NGC 2539 Puppis 6.5
130 NGC 2527 Puppis 6.5
131 NGC 6604 Serpens Cauda 6.5
132 IC 1805 Cassiopeia 6.5
133 NGC 1444 Perseus 6.6
134 Collinder 316 Scorpius 6.6
135 NGC 6169 Norma 6.6
136 M29 Cygnus 6.6
137 NGC 3572 Carina 6.6
138 NGC 2423 Puppis 6.7
139 NGC 1342 Perseus 6.7
140 NGC 6167 Norma 6.7
141 NGC 2129 Gemini 6.7
142 NGC 7789 Cassiopeia 6.7
143 Collinder 336 Scorpius 6.7
144 NGC 1027 Cassiopeia 6.7
145 NGC 3324 Carina 6.7
146 NGC 6709 Aquila 6.7
147 NGC 2343 Monoceros 6.7
148 Collinder 197 Vela 6.7
149 NGC 6811 Cygnus 6.8
150 NGC 2175 Orion 6.8
151 Collinder 232 Carina 6.8
152 IC 1848 Cassiopeia 6.8
153 IC 4651 Ara 6.9
154 Collinder 241 Carina 6.9
155 NGC 4609 Crux 6.9
156 Collinder 299 Norma 6.9
157 M67 Cancer 6.9
158 M18 Sagittarius 6.9
159 NGC 1502 Camelopardalis 6.9
160 M52 Cassiopeia 6.9
161 NGC 2439 Puppis 6.9
162 NGC 6595 Sagittarius 7.0
163 NGC 1807 Taurus 7.0
164 NGC 2571 Puppis 7.0
165 Collinder 36 Cassiopeia 7.0
166 NGC 7063 Cygnus 7.0
167 Collinder 111 Monoceros 7.0
168 NGC 225 Cassiopeia 7.0
169 NGC 1582 Perseus 7.0
170 Collinder 231 Carina 7.0
171 Collinder 401 Aquila 7.0
172 NGC 1857 Auriga 7.0
173 NGC 663 Cassiopeia 7.1
174 NGC 2467 Puppis 7.1
175 Collinder 155 Puppis 7.1
176 Collinder 258 Crux 7.1
177 NGC 2353 Monoceros 7.1
178 NGC 6823 Vulpecula 7.1
179 NGC 7082 Cygnus 7.2
180 NGC 6178 Scorpius 7.2
181 NGC 4463 Musca 7.2
182 NGC 2360 Canis Major 7.2
183 NGC 6134 Norma 7.2
184 NGC 6208 Ara 7.2
185 NGC 2910 Vela 7.2
186 NGC 2335 Monoceros 7.2
187 NGC 6425 Scorpius 7.2
188 NGC 7380 Cepheus 7.2
189 IC 348 Perseus 7.3
190 NGC 6819 Cygnus 7.3
191 Collinder 96 Monoceros 7.3
192 NGC 2482 Puppis 7.3
193 Collinder 21 Triangulum 7.3
194 IC 4996 Cygnus 7.3
195 NGC 2251 Monoceros 7.3
196 NGC 2645 Vela 7.3
197 IC 2488 Vela 7.4
198 NGC 6910 Cygnus 7.4
199 IC 1590 Cassiopeia 7.4
200 NGC 2567 Puppis 7.4

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EST

Color scheme