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 Omicron Canis Minorum Cluster Canis Major 2.6
15 NGC 6231 Scorpius 2.6
16 NGC 2451 Puppis 2.8
17 Lambda Orionis Cluster Orion 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 Collinder 249 Centaurus 4.0
30 M42 Orion 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 NGC 1981 Orion 4.2
37 M6 Scorpius 4.2
38 NGC 2232 Monoceros 4.2
39 Collinder 62 Auriga 4.2
40 IC 4665 Ophiuchus 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 NGC 6633 Ophiuchus 4.6
47 NGC 6530 Sagittarius 4.6
48 Collinder 106 Monoceros 4.6
49 IC 4756 Serpens Cauda 4.6
50 M25 Sagittarius 4.6
51 M39 Cygnus 4.6
52 NGC 2547 Vela 4.7
53 NGC 3293 Carina 4.7
54 NGC 2244 Monoceros 4.8
55 NGC 2239 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 2281 Auriga 5.4
68 NGC 6281 Scorpius 5.4
69 NGC 6087 Norma 5.4
70 Collinder 97 Monoceros 5.4
71 NGC 6374 Scorpius 5.5
72 Collinder 230 Carina 5.5
73 M23 Sagittarius 5.5
74 NGC 5662 Centaurus 5.5
75 M37 Auriga 5.6
76 NGC 5460 Centaurus 5.6
77 NGC 7686 Andromeda 5.6
78 NGC 6067 Norma 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 6124 Scorpius 5.8
86 NGC 2477 Puppis 5.8
87 NGC 2169 Orion 5.9
88 NGC 6250 Ara 5.9
89 Collinder 29 Perseus 5.9
90 M50 Monoceros 5.9
91 NGC 5281 Centaurus 5.9
92 M21 Sagittarius 5.9
93 NGC 2301 Monoceros 6.0
94 M17 Sagittarius 6.0
95 M36 Auriga 6.0
96 NGC 5316 Centaurus 6.0
97 M16 Serpens Cauda 6.0
98 NGC 6322 Scorpius 6.0
99 NGC 6605 Serpens Cauda 6.0
100 IC 4703 Serpens Cauda 6.0
101 NGC 3228 Vela 6.0
102 NGC 884 Perseus 6.1
103 M46 Puppis 6.1
104 NGC 2669 Vela 6.1
105 Collinder 202 Vela 6.1
106 NGC 7160 Cepheus 6.1
107 Collinder 350 Ophiuchus 6.1
108 NGC 1746 Taurus 6.1
109 NGC 1545 Perseus 6.2
110 M93 Puppis 6.2
111 M20 Sagittarius 6.3
112 NGC 2546 Puppis 6.3
113 Collinder 394 Sagittarius 6.3
114 NGC 6940 Vulpecula 6.3
115 NGC 5617 Centaurus 6.3
116 M38 Auriga 6.4
117 Collinder 91 Monoceros 6.4
118 NGC 6242 Scorpius 6.4
119 NGC 7243 Lacerta 6.4
120 Collinder 367 Sagittarius 6.4
121 NGC 1662 Orion 6.4
122 NGC 1647 Taurus 6.4
123 NGC 1528 Perseus 6.4
124 NGC 457 Cassiopeia 6.4
125 NGC 2527 Puppis 6.5
126 NGC 5822 Lupus 6.5
127 NGC 129 Cassiopeia 6.5
128 NGC 654 Cassiopeia 6.5
129 NGC 6604 Serpens Cauda 6.5
130 IC 1805 Cassiopeia 6.5
131 NGC 2539 Puppis 6.5
132 NGC 2354 Canis Major 6.5
133 NGC 6169 Norma 6.6
134 NGC 1444 Perseus 6.6
135 NGC 3572 Carina 6.6
136 M29 Cygnus 6.6
137 Collinder 316 Scorpius 6.6
138 NGC 2343 Monoceros 6.7
139 NGC 6167 Norma 6.7
140 Collinder 336 Scorpius 6.7
141 NGC 7789 Cassiopeia 6.7
142 NGC 1342 Perseus 6.7
143 NGC 2423 Puppis 6.7
144 NGC 3324 Carina 6.7
145 NGC 2129 Gemini 6.7
146 NGC 1027 Cassiopeia 6.7
147 NGC 6709 Aquila 6.7
148 Collinder 197 Vela 6.7
149 NGC 6811 Cygnus 6.8
150 Collinder 232 Carina 6.8
151 IC 1848 Cassiopeia 6.8
152 NGC 2175 Orion 6.8
153 M67 Cancer 6.9
154 M18 Sagittarius 6.9
155 NGC 4609 Crux 6.9
156 NGC 1502 Camelopardalis 6.9
157 M52 Cassiopeia 6.9
158 Collinder 299 Norma 6.9
159 NGC 2439 Puppis 6.9
160 IC 4651 Ara 6.9
161 Collinder 241 Carina 6.9
162 NGC 6595 Sagittarius 7.0
163 Collinder 36 Cassiopeia 7.0
164 NGC 1857 Auriga 7.0
165 NGC 7063 Cygnus 7.0
166 Collinder 111 Monoceros 7.0
167 NGC 1807 Taurus 7.0
168 Collinder 231 Carina 7.0
169 NGC 2571 Puppis 7.0
170 Collinder 401 Aquila 7.0
171 NGC 225 Cassiopeia 7.0
172 NGC 1582 Perseus 7.0
173 NGC 2353 Monoceros 7.1
174 NGC 663 Cassiopeia 7.1
175 Collinder 155 Puppis 7.1
176 Collinder 258 Crux 7.1
177 NGC 2467 Puppis 7.1
178 NGC 6823 Vulpecula 7.1
179 NGC 7082 Cygnus 7.2
180 NGC 6178 Scorpius 7.2
181 NGC 2910 Vela 7.2
182 NGC 4463 Musca 7.2
183 NGC 2335 Monoceros 7.2
184 NGC 6134 Norma 7.2
185 NGC 6208 Ara 7.2
186 NGC 2360 Canis Major 7.2
187 NGC 7380 Cepheus 7.2
188 NGC 6425 Scorpius 7.2
189 IC 348 Perseus 7.3
190 NGC 6819 Cygnus 7.3
191 NGC 2251 Monoceros 7.3
192 Collinder 21 Triangulum 7.3
193 IC 4996 Cygnus 7.3
194 NGC 2482 Puppis 7.3
195 Collinder 96 Monoceros 7.3
196 NGC 2645 Vela 7.3
197 NGC 6910 Cygnus 7.4
198 IC 1590 Cassiopeia 7.4
199 NGC 2384 Canis Major 7.4
200 NGC 4349 Crux 7.4

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

Color scheme