The Brightest Open Clusters in the Sky

Name Constellation Magnitude
Name Constellation Magnitude
1 Orion's Belt Orion 0.6
2 Collinder 173 Puppis 0.6
3 Antares Cluster Scorpius 1.0
4 C41 Taurus 1.0
5 Collinder 39 Perseus 1.2
6 Alpha Persei Cluster Perseus 1.2
7 M45 Taurus 1.3
8 Collinder 256 Coma Berenices 1.8
9 Coma Star Cluster 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 Collinder 359 Ophiuchus 3.0
19 Melotte 186 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 IC 2581 Carina 4.0
29 IC 2395 Vela 4.0
30 Collinder 249 Centaurus 4.0
31 M42 Orion 4.0
32 NGC 2362 Canis Major 4.1
33 NGC 2264 Monoceros 4.1
34 NGC 2232 Monoceros 4.2
35 NGC 4755 Crux 4.2
36 IC 4665 Ophiuchus 4.2
37 NGC 1981 Orion 4.2
38 Collinder 62 Auriga 4.2
39 NGC 3114 Carina 4.2
40 Collinder 464 Camelopardalis 4.2
41 M6 Scorpius 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 6530 Sagittarius 4.6
47 IC 4756 Serpens Cauda 4.6
48 M39 Cygnus 4.6
49 NGC 6633 Ophiuchus 4.6
50 M25 Sagittarius 4.6
51 Collinder 106 Monoceros 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 Collinder 107 Monoceros 5.1
61 M35 Gemini 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 Collinder 97 Monoceros 5.4
69 NGC 6087 Norma 5.4
70 NGC 2281 Auriga 5.4
71 NGC 5662 Centaurus 5.5
72 M23 Sagittarius 5.5
73 NGC 6374 Scorpius 5.5
74 Collinder 230 Carina 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 NGC 6416 Scorpius 5.7
80 NGC 6885 Vulpecula 5.7
81 Collinder 89 Gemini 5.7
82 NGC 752 Andromeda 5.7
83 NGC 2477 Puppis 5.8
84 M48 Hydra 5.8
85 NGC 6124 Scorpius 5.8
86 M11 Scutum 5.8
87 Collinder 29 Perseus 5.9
88 NGC 2169 Orion 5.9
89 NGC 5281 Centaurus 5.9
90 M21 Sagittarius 5.9
91 NGC 6250 Ara 5.9
92 M50 Monoceros 5.9
93 NGC 5316 Centaurus 6.0
94 M17 Sagittarius 6.0
95 IC 4703 Serpens Cauda 6.0
96 M16 Serpens Cauda 6.0
97 NGC 2301 Monoceros 6.0
98 NGC 3228 Vela 6.0
99 M36 Auriga 6.0
100 NGC 6322 Scorpius 6.0
101 NGC 6605 Serpens Cauda 6.0
102 NGC 7160 Cepheus 6.1
103 NGC 2669 Vela 6.1
104 M46 Puppis 6.1
105 Collinder 202 Vela 6.1
106 NGC 1746 Taurus 6.1
107 NGC 884 Perseus 6.1
108 Collinder 350 Ophiuchus 6.1
109 M93 Puppis 6.2
110 NGC 1545 Perseus 6.2
111 NGC 6940 Vulpecula 6.3
112 Collinder 394 Sagittarius 6.3
113 NGC 2546 Puppis 6.3
114 NGC 5617 Centaurus 6.3
115 M20 Sagittarius 6.3
116 NGC 1647 Taurus 6.4
117 NGC 6242 Scorpius 6.4
118 Collinder 367 Sagittarius 6.4
119 NGC 457 Cassiopeia 6.4
120 M38 Auriga 6.4
121 NGC 7243 Lacerta 6.4
122 Collinder 91 Monoceros 6.4
123 NGC 1528 Perseus 6.4
124 NGC 1662 Orion 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 654 Cassiopeia 6.5
130 NGC 2527 Puppis 6.5
131 NGC 129 Cassiopeia 6.5
132 NGC 5822 Lupus 6.5
133 M29 Cygnus 6.6
134 NGC 1444 Perseus 6.6
135 NGC 3572 Carina 6.6
136 NGC 6169 Norma 6.6
137 Collinder 316 Scorpius 6.6
138 NGC 7789 Cassiopeia 6.7
139 NGC 2343 Monoceros 6.7
140 NGC 3324 Carina 6.7
141 NGC 1027 Cassiopeia 6.7
142 NGC 2423 Puppis 6.7
143 NGC 2129 Gemini 6.7
144 NGC 6709 Aquila 6.7
145 NGC 1342 Perseus 6.7
146 Collinder 197 Vela 6.7
147 NGC 6167 Norma 6.7
148 Collinder 336 Scorpius 6.7
149 NGC 2175 Orion 6.8
150 NGC 6811 Cygnus 6.8
151 IC 1848 Cassiopeia 6.8
152 Collinder 232 Carina 6.8
153 M18 Sagittarius 6.9
154 NGC 1502 Camelopardalis 6.9
155 Collinder 241 Carina 6.9
156 Collinder 299 Norma 6.9
157 NGC 4609 Crux 6.9
158 M67 Cancer 6.9
159 IC 4651 Ara 6.9
160 M52 Cassiopeia 6.9
161 NGC 2439 Puppis 6.9
162 Collinder 401 Aquila 7.0
163 NGC 1857 Auriga 7.0
164 NGC 7063 Cygnus 7.0
165 Collinder 36 Cassiopeia 7.0
166 Collinder 111 Monoceros 7.0
167 NGC 6595 Sagittarius 7.0
168 NGC 225 Cassiopeia 7.0
169 NGC 1582 Perseus 7.0
170 Collinder 231 Carina 7.0
171 NGC 1807 Taurus 7.0
172 NGC 2571 Puppis 7.0
173 NGC 2467 Puppis 7.1
174 NGC 663 Cassiopeia 7.1
175 Collinder 258 Crux 7.1
176 NGC 2353 Monoceros 7.1
177 Collinder 155 Puppis 7.1
178 NGC 6823 Vulpecula 7.1
179 NGC 6134 Norma 7.2
180 NGC 2335 Monoceros 7.2
181 NGC 2360 Canis Major 7.2
182 NGC 6178 Scorpius 7.2
183 NGC 2910 Vela 7.2
184 NGC 4463 Musca 7.2
185 NGC 6208 Ara 7.2
186 NGC 7082 Cygnus 7.2
187 NGC 7380 Cepheus 7.2
188 NGC 6425 Scorpius 7.2
189 IC 4996 Cygnus 7.3
190 NGC 6819 Cygnus 7.3
191 NGC 2251 Monoceros 7.3
192 IC 348 Perseus 7.3
193 Collinder 96 Monoceros 7.3
194 Collinder 21 Triangulum 7.3
195 NGC 2482 Puppis 7.3
196 NGC 2645 Vela 7.3
197 NGC 2396 Puppis 7.4
198 NGC 4349 Crux 7.4
199 NGC 3330 Vela 7.4
200 NGC 6200 Ara 7.4

Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EDT

Color scheme