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 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 Melotte 186 Ophiuchus 3.0
19 Collinder 359 Ophiuchus 3.0
20 NGC 3532 Carina 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 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 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 NGC 1981 Orion 4.2
35 Collinder 62 Auriga 4.2
36 NGC 3114 Carina 4.2
37 IC 4665 Ophiuchus 4.2
38 NGC 2232 Monoceros 4.2
39 Collinder 464 Camelopardalis 4.2
40 M6 Scorpius 4.2
41 NGC 4755 Crux 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 M25 Sagittarius 4.6
47 Collinder 106 Monoceros 4.6
48 IC 4756 Serpens Cauda 4.6
49 M39 Cygnus 4.6
50 NGC 6633 Ophiuchus 4.6
51 NGC 6530 Sagittarius 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 233 Carina 5.0
57 Collinder 203 Vela 5.0
58 Collinder 234 Carina 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 6193 Ara 5.2
64 NGC 6871 Cygnus 5.2
65 Collinder 411 Octans 5.3
66 NGC 3766 Centaurus 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 7686 Andromeda 5.6
77 NGC 5460 Centaurus 5.6
78 NGC 6067 Norma 5.6
79 NGC 6416 Scorpius 5.7
80 NGC 752 Andromeda 5.7
81 NGC 6885 Vulpecula 5.7
82 Collinder 89 Gemini 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 NGC 6250 Ara 5.9
88 M50 Monoceros 5.9
89 M21 Sagittarius 5.9
90 Collinder 29 Perseus 5.9
91 NGC 2169 Orion 5.9
92 NGC 5281 Centaurus 5.9
93 M17 Sagittarius 6.0
94 M36 Auriga 6.0
95 NGC 6605 Serpens Cauda 6.0
96 M16 Serpens Cauda 6.0
97 NGC 5316 Centaurus 6.0
98 NGC 2301 Monoceros 6.0
99 NGC 3228 Vela 6.0
100 IC 4703 Serpens Cauda 6.0
101 NGC 6322 Scorpius 6.0
102 NGC 7160 Cepheus 6.1
103 Collinder 350 Ophiuchus 6.1
104 Collinder 202 Vela 6.1
105 NGC 1746 Taurus 6.1
106 NGC 2669 Vela 6.1
107 M46 Puppis 6.1
108 NGC 884 Perseus 6.1
109 NGC 1545 Perseus 6.2
110 M93 Puppis 6.2
111 NGC 2546 Puppis 6.3
112 Collinder 394 Sagittarius 6.3
113 NGC 6940 Vulpecula 6.3
114 M20 Sagittarius 6.3
115 NGC 5617 Centaurus 6.3
116 Collinder 367 Sagittarius 6.4
117 NGC 6242 Scorpius 6.4
118 NGC 1662 Orion 6.4
119 NGC 7243 Lacerta 6.4
120 NGC 1528 Perseus 6.4
121 NGC 1647 Taurus 6.4
122 Collinder 91 Monoceros 6.4
123 NGC 457 Cassiopeia 6.4
124 M38 Auriga 6.4
125 NGC 654 Cassiopeia 6.5
126 NGC 6604 Serpens Cauda 6.5
127 NGC 2354 Canis Major 6.5
128 NGC 2539 Puppis 6.5
129 IC 1805 Cassiopeia 6.5
130 NGC 2527 Puppis 6.5
131 NGC 129 Cassiopeia 6.5
132 NGC 5822 Lupus 6.5
133 NGC 6169 Norma 6.6
134 NGC 1444 Perseus 6.6
135 NGC 3572 Carina 6.6
136 Collinder 316 Scorpius 6.6
137 M29 Cygnus 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 6709 Aquila 6.7
144 Collinder 336 Scorpius 6.7
145 NGC 6167 Norma 6.7
146 NGC 1342 Perseus 6.7
147 NGC 7789 Cassiopeia 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 M18 Sagittarius 6.9
154 NGC 1502 Camelopardalis 6.9
155 M52 Cassiopeia 6.9
156 NGC 4609 Crux 6.9
157 IC 4651 Ara 6.9
158 Collinder 241 Carina 6.9
159 NGC 2439 Puppis 6.9
160 M67 Cancer 6.9
161 Collinder 299 Norma 6.9
162 NGC 1857 Auriga 7.0
163 Collinder 111 Monoceros 7.0
164 Collinder 401 Aquila 7.0
165 NGC 225 Cassiopeia 7.0
166 NGC 1582 Perseus 7.0
167 NGC 7063 Cygnus 7.0
168 Collinder 231 Carina 7.0
169 NGC 1807 Taurus 7.0
170 Collinder 36 Cassiopeia 7.0
171 NGC 2571 Puppis 7.0
172 NGC 6595 Sagittarius 7.0
173 Collinder 155 Puppis 7.1
174 Collinder 258 Crux 7.1
175 NGC 2467 Puppis 7.1
176 NGC 663 Cassiopeia 7.1
177 NGC 2353 Monoceros 7.1
178 NGC 6823 Vulpecula 7.1
179 NGC 2910 Vela 7.2
180 NGC 7082 Cygnus 7.2
181 NGC 6178 Scorpius 7.2
182 NGC 2360 Canis Major 7.2
183 NGC 6208 Ara 7.2
184 NGC 2335 Monoceros 7.2
185 NGC 4463 Musca 7.2
186 NGC 6425 Scorpius 7.2
187 NGC 7380 Cepheus 7.2
188 NGC 6134 Norma 7.2
189 NGC 6819 Cygnus 7.3
190 Collinder 21 Triangulum 7.3
191 NGC 2482 Puppis 7.3
192 Collinder 96 Monoceros 7.3
193 IC 4996 Cygnus 7.3
194 NGC 2251 Monoceros 7.3
195 IC 348 Perseus 7.3
196 NGC 2645 Vela 7.3
197 NGC 2567 Puppis 7.4
198 NGC 2384 Canis Major 7.4
199 NGC 6910 Cygnus 7.4
200 NGC 3330 Vela 7.4

Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EST

Color scheme