The Brightest Open Clusters in the Sky

Name Constellation Magnitude
Name Constellation Magnitude
1 C41 Taurus 0.5
2 Collinder 173 Puppis 0.6
3 Orion's Belt Orion 0.6
4 Antares Cluster Scorpius 1.0
5 Collinder 39 Perseus 1.2
6 Alpha Persei Cluster Perseus 1.2
7 M45 Taurus 1.6
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 Collinder 65 Orion 3.0
18 NGC 3532 Carina 3.0
19 Melotte 186 Ophiuchus 3.0
20 Collinder 359 Ophiuchus 3.0
21 M44 Cancer 3.1
22 M7 Scorpius 3.3
23 Tuft in the Tail of the Dog Canis Major 3.5
24 Collinder 132 Canis Major 3.6
25 NGC 869 Perseus 3.7
26 NGC 884 Perseus 3.8
27 NGC 2264 Monoceros 3.9
28 NGC 2232 Monoceros 3.9
29 Collinder 249 Centaurus 4.0
30 M42 Orion 4.0
31 NGC 2362 Canis Major 4.1
32 Collinder 464 Camelopardalis 4.2
33 M6 Scorpius 4.2
34 Collinder 62 Auriga 4.2
35 IC 4665 Ophiuchus 4.2
36 NGC 4755 Crux 4.2
37 NGC 1981 Orion 4.2
38 NGC 3114 Carina 4.2
39 IC 2581 Carina 4.3
40 Collinder 228 Carina 4.4
41 M47 Puppis 4.4
42 M41 Canis Major 4.5
43 IC 4756 Serpens Cauda 4.6
44 Collinder 106 Monoceros 4.6
45 M25 Sagittarius 4.6
46 IC 2395 Vela 4.6
47 NGC 6530 Sagittarius 4.6
48 M39 Cygnus 4.6
49 NGC 6633 Ophiuchus 4.6
50 NGC 3293 Carina 4.7
51 NGC 2547 Vela 4.7
52 NGC 2239 Monoceros 4.8
53 NGC 2244 Monoceros 4.8
54 Collinder 203 Vela 5.0
55 Collinder 234 Carina 5.0
56 Collinder 233 Carina 5.0
57 M35 Gemini 5.1
58 NGC 6025 Triangulum Australe 5.1
59 Collinder 107 Monoceros 5.1
60 NGC 6871 Cygnus 5.2
61 NGC 6193 Ara 5.2
62 M34 Perseus 5.2
63 Collinder 411 Octans 5.3
64 NGC 3766 Centaurus 5.3
65 NGC 5138 Centaurus 5.3
66 NGC 6087 Norma 5.4
67 NGC 6281 Scorpius 5.4
68 Collinder 97 Monoceros 5.4
69 NGC 2281 Auriga 5.4
70 Collinder 230 Carina 5.5
71 NGC 5662 Centaurus 5.5
72 M23 Sagittarius 5.5
73 NGC 6374 Scorpius 5.5
74 M37 Auriga 5.6
75 NGC 6067 Norma 5.6
76 NGC 5460 Centaurus 5.6
77 NGC 7686 Andromeda 5.6
78 NGC 6416 Scorpius 5.7
79 NGC 752 Andromeda 5.7
80 NGC 2477 Puppis 5.8
81 M48 Hydra 5.8
82 M11 Scutum 5.8
83 NGC 6124 Scorpius 5.8
84 Collinder 29 Perseus 5.9
85 M50 Monoceros 5.9
86 NGC 5281 Centaurus 5.9
87 M21 Sagittarius 5.9
88 NGC 2169 Orion 5.9
89 NGC 6250 Ara 5.9
90 NGC 5316 Centaurus 6.0
91 IC 4703 Serpens Cauda 6.0
92 M17 Sagittarius 6.0
93 NGC 2301 Monoceros 6.0
94 M36 Auriga 6.0
95 M16 Serpens Cauda 6.0
96 NGC 3228 Vela 6.0
97 NGC 6605 Serpens Cauda 6.0
98 Collinder 367 Sagittarius 6.0
99 NGC 6322 Scorpius 6.0
100 Collinder 202 Vela 6.1
101 NGC 1746 Taurus 6.1
102 NGC 2669 Vela 6.1
103 Collinder 350 Ophiuchus 6.1
104 NGC 7160 Cepheus 6.1
105 M46 Puppis 6.1
106 NGC 1545 Perseus 6.2
107 M93 Puppis 6.2
108 NGC 6940 Vulpecula 6.3
109 NGC 2546 Puppis 6.3
110 NGC 5617 Centaurus 6.3
111 Collinder 394 Sagittarius 6.3
112 M20 Sagittarius 6.3
113 M38 Auriga 6.4
114 NGC 7243 Lacerta 6.4
115 NGC 1662 Orion 6.4
116 NGC 6242 Scorpius 6.4
117 Collinder 91 Monoceros 6.4
118 NGC 1528 Perseus 6.4
119 NGC 1647 Taurus 6.4
120 NGC 457 Cassiopeia 6.4
121 NGC 129 Cassiopeia 6.5
122 NGC 2354 Canis Major 6.5
123 NGC 2539 Puppis 6.5
124 IC 1848 Cassiopeia 6.5
125 NGC 5822 Lupus 6.5
126 NGC 654 Cassiopeia 6.5
127 IC 1805 Cassiopeia 6.5
128 NGC 2527 Puppis 6.5
129 NGC 6604 Serpens Cauda 6.5
130 NGC 1444 Perseus 6.6
131 NGC 3572 Carina 6.6
132 Collinder 316 Scorpius 6.6
133 NGC 6169 Norma 6.6
134 M29 Cygnus 6.6
135 NGC 2129 Gemini 6.7
136 NGC 6167 Norma 6.7
137 NGC 1342 Perseus 6.7
138 NGC 2423 Puppis 6.7
139 NGC 7789 Cassiopeia 6.7
140 Collinder 197 Vela 6.7
141 NGC 6709 Aquila 6.7
142 NGC 2343 Monoceros 6.7
143 Collinder 336 Scorpius 6.7
144 NGC 3324 Carina 6.7
145 NGC 1027 Cassiopeia 6.7
146 NGC 6811 Cygnus 6.8
147 IC 1369 Cygnus 6.8
148 NGC 2175 Orion 6.8
149 Collinder 232 Carina 6.8
150 M18 Sagittarius 6.9
151 M52 Cassiopeia 6.9
152 Collinder 299 Norma 6.9
153 IC 4651 Ara 6.9
154 NGC 1502 Camelopardalis 6.9
155 NGC 4609 Crux 6.9
156 Collinder 241 Carina 6.9
157 NGC 2439 Puppis 6.9
158 M67 Cancer 6.9
159 NGC 1807 Taurus 7.0
160 NGC 225 Cassiopeia 7.0
161 Collinder 111 Monoceros 7.0
162 Collinder 401 Aquila 7.0
163 NGC 2571 Puppis 7.0
164 NGC 1857 Auriga 7.0
165 NGC 1582 Perseus 7.0
166 NGC 7063 Cygnus 7.0
167 Collinder 36 Cassiopeia 7.0
168 Collinder 231 Carina 7.0
169 NGC 663 Cassiopeia 7.1
170 NGC 2353 Monoceros 7.1
171 Collinder 155 Puppis 7.1
172 Collinder 258 Crux 7.1
173 NGC 6823 Vulpecula 7.1
174 NGC 6134 Norma 7.2
175 NGC 7380 Cepheus 7.2
176 NGC 7082 Cygnus 7.2
177 NGC 2910 Vela 7.2
178 NGC 6425 Scorpius 7.2
179 IC 5146 Cygnus 7.2
180 NGC 6178 Scorpius 7.2
181 NGC 2360 Canis Major 7.2
182 NGC 6208 Ara 7.2
183 NGC 2335 Monoceros 7.2
184 NGC 4463 Musca 7.2
185 IC 348 Perseus 7.3
186 NGC 2251 Monoceros 7.3
187 NGC 6819 Cygnus 7.3
188 Collinder 21 Triangulum 7.3
189 NGC 2482 Puppis 7.3
190 IC 4996 Cygnus 7.3
191 Collinder 96 Monoceros 7.3
192 NGC 2645 Vela 7.3
193 NGC 6200 Ara 7.4
194 NGC 2396 Puppis 7.4
195 NGC 4349 Crux 7.4
196 IC 2488 Vela 7.4
197 M103 Cassiopeia 7.4
198 NGC 6910 Cygnus 7.4
199 NGC 2384 Canis Major 7.4
200 NGC 3330 Vela 7.4

Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EDT

Color scheme