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 NGC 1980 Orion 2.5
13 IC 2391 Vela 2.5
14 NGC 6231 Scorpius 2.6
15 Omicron Canis Minorum Cluster Canis Major 2.6
16 NGC 2451 Puppis 2.8
17 Lambda Orionis Cluster Orion 2.8
18 Collinder 359 Ophiuchus 3.0
19 Collinder 65 Orion 3.0
20 Melotte 186 Ophiuchus 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 Collinder 132 Canis Major 3.6
26 Brocchi's Cluster Vulpecula 3.6
27 NGC 2516 Carina 3.8
28 IC 2581 Carina 4.0
29 M42 Orion 4.0
30 IC 2395 Vela 4.0
31 Collinder 249 Centaurus 4.0
32 NGC 2362 Canis Major 4.1
33 NGC 2264 Monoceros 4.1
34 Collinder 464 Camelopardalis 4.2
35 M6 Scorpius 4.2
36 NGC 4755 Crux 4.2
37 NGC 1981 Orion 4.2
38 Collinder 62 Auriga 4.2
39 NGC 3114 Carina 4.2
40 IC 4665 Ophiuchus 4.2
41 NGC 2232 Monoceros 4.2
42 NGC 869 Perseus 4.3
43 Collinder 228 Carina 4.4
44 M47 Puppis 4.4
45 M41 Canis Major 4.5
46 NGC 6633 Ophiuchus 4.6
47 NGC 6530 Sagittarius 4.6
48 M25 Sagittarius 4.6
49 Collinder 106 Monoceros 4.6
50 IC 4756 Serpens Cauda 4.6
51 M39 Cygnus 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 Collinder 107 Monoceros 5.1
61 M35 Gemini 5.1
62 NGC 6871 Cygnus 5.2
63 M34 Perseus 5.2
64 NGC 6193 Ara 5.2
65 NGC 3766 Centaurus 5.3
66 Collinder 411 Octans 5.3
67 Collinder 97 Monoceros 5.4
68 NGC 2281 Auriga 5.4
69 NGC 6281 Scorpius 5.4
70 NGC 6087 Norma 5.4
71 M23 Sagittarius 5.5
72 Collinder 230 Carina 5.5
73 NGC 5662 Centaurus 5.5
74 NGC 6374 Scorpius 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 Collinder 89 Gemini 5.7
80 NGC 6416 Scorpius 5.7
81 NGC 752 Andromeda 5.7
82 NGC 6885 Vulpecula 5.7
83 NGC 6124 Scorpius 5.8
84 NGC 2477 Puppis 5.8
85 M48 Hydra 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 NGC 6250 Ara 5.9
91 M50 Monoceros 5.9
92 M21 Sagittarius 5.9
93 NGC 2301 Monoceros 6.0
94 NGC 3228 Vela 6.0
95 IC 4703 Serpens Cauda 6.0
96 NGC 6322 Scorpius 6.0
97 M17 Sagittarius 6.0
98 M36 Auriga 6.0
99 M16 Serpens Cauda 6.0
100 NGC 6605 Serpens Cauda 6.0
101 NGC 5316 Centaurus 6.0
102 M46 Puppis 6.1
103 NGC 884 Perseus 6.1
104 NGC 7160 Cepheus 6.1
105 Collinder 350 Ophiuchus 6.1
106 Collinder 202 Vela 6.1
107 NGC 1746 Taurus 6.1
108 NGC 2669 Vela 6.1
109 NGC 1545 Perseus 6.2
110 M93 Puppis 6.2
111 M20 Sagittarius 6.3
112 NGC 5617 Centaurus 6.3
113 NGC 2546 Puppis 6.3
114 Collinder 394 Sagittarius 6.3
115 NGC 6940 Vulpecula 6.3
116 M38 Auriga 6.4
117 NGC 6242 Scorpius 6.4
118 NGC 1662 Orion 6.4
119 NGC 7243 Lacerta 6.4
120 Collinder 367 Sagittarius 6.4
121 NGC 1528 Perseus 6.4
122 NGC 1647 Taurus 6.4
123 Collinder 91 Monoceros 6.4
124 NGC 457 Cassiopeia 6.4
125 NGC 2527 Puppis 6.5
126 NGC 129 Cassiopeia 6.5
127 NGC 5822 Lupus 6.5
128 NGC 654 Cassiopeia 6.5
129 NGC 2354 Canis Major 6.5
130 NGC 2539 Puppis 6.5
131 NGC 6604 Serpens Cauda 6.5
132 IC 1805 Cassiopeia 6.5
133 Collinder 316 Scorpius 6.6
134 M29 Cygnus 6.6
135 NGC 6169 Norma 6.6
136 NGC 1444 Perseus 6.6
137 NGC 3572 Carina 6.6
138 Collinder 197 Vela 6.7
139 NGC 2343 Monoceros 6.7
140 NGC 2129 Gemini 6.7
141 NGC 3324 Carina 6.7
142 NGC 1027 Cassiopeia 6.7
143 NGC 6167 Norma 6.7
144 NGC 6709 Aquila 6.7
145 NGC 1342 Perseus 6.7
146 NGC 7789 Cassiopeia 6.7
147 Collinder 336 Scorpius 6.7
148 NGC 2423 Puppis 6.7
149 NGC 6811 Cygnus 6.8
150 Collinder 232 Carina 6.8
151 NGC 2175 Orion 6.8
152 IC 1848 Cassiopeia 6.8
153 M67 Cancer 6.9
154 Collinder 299 Norma 6.9
155 M18 Sagittarius 6.9
156 NGC 1502 Camelopardalis 6.9
157 M52 Cassiopeia 6.9
158 NGC 4609 Crux 6.9
159 IC 4651 Ara 6.9
160 Collinder 241 Carina 6.9
161 NGC 2439 Puppis 6.9
162 NGC 2571 Puppis 7.0
163 NGC 6595 Sagittarius 7.0
164 NGC 1857 Auriga 7.0
165 Collinder 111 Monoceros 7.0
166 NGC 225 Cassiopeia 7.0
167 NGC 1582 Perseus 7.0
168 Collinder 401 Aquila 7.0
169 Collinder 231 Carina 7.0
170 NGC 7063 Cygnus 7.0
171 NGC 1807 Taurus 7.0
172 Collinder 36 Cassiopeia 7.0
173 NGC 6823 Vulpecula 7.1
174 Collinder 155 Puppis 7.1
175 Collinder 258 Crux 7.1
176 NGC 2467 Puppis 7.1
177 NGC 663 Cassiopeia 7.1
178 NGC 2353 Monoceros 7.1
179 NGC 6425 Scorpius 7.2
180 NGC 7380 Cepheus 7.2
181 NGC 6134 Norma 7.2
182 NGC 2910 Vela 7.2
183 NGC 7082 Cygnus 7.2
184 NGC 6178 Scorpius 7.2
185 NGC 2360 Canis Major 7.2
186 NGC 6208 Ara 7.2
187 NGC 2335 Monoceros 7.2
188 NGC 4463 Musca 7.2
189 NGC 2251 Monoceros 7.3
190 IC 348 Perseus 7.3
191 Collinder 21 Triangulum 7.3
192 NGC 6819 Cygnus 7.3
193 NGC 2482 Puppis 7.3
194 Collinder 96 Monoceros 7.3
195 IC 4996 Cygnus 7.3
196 NGC 2645 Vela 7.3
197 NGC 2567 Puppis 7.4
198 NGC 2384 Canis Major 7.4
199 NGC 3330 Vela 7.4
200 NGC 6910 Cygnus 7.4

Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EDT

Color scheme