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 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 Omicron Canis Minorum Cluster Canis Major 2.6
14 NGC 6231 Scorpius 2.6
15 Lambda Orionis Cluster Orion 2.8
16 NGC 2451 Puppis 2.8
17 Melotte 186 Ophiuchus 3.0
18 NGC 3532 Carina 3.0
19 Collinder 359 Ophiuchus 3.0
20 Collinder 65 Orion 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 2516 Carina 3.8
26 NGC 2232 Monoceros 3.9
27 NGC 2264 Monoceros 3.9
28 Collinder 249 Centaurus 4.0
29 NGC 884 Perseus 4.0
30 M42 Orion 4.0
31 NGC 869 Perseus 4.0
32 NGC 2362 Canis Major 4.1
33 NGC 3114 Carina 4.2
34 Collinder 62 Auriga 4.2
35 M6 Scorpius 4.2
36 NGC 4755 Crux 4.2
37 IC 4665 Ophiuchus 4.2
38 Collinder 464 Camelopardalis 4.2
39 IC 2581 Carina 4.3
40 M47 Puppis 4.4
41 Collinder 228 Carina 4.4
42 M41 Canis Major 4.5
43 IC 2395 Vela 4.6
44 M39 Cygnus 4.6
45 NGC 6633 Ophiuchus 4.6
46 NGC 6530 Sagittarius 4.6
47 M25 Sagittarius 4.6
48 NGC 1981 Orion 4.6
49 Collinder 106 Monoceros 4.6
50 NGC 3293 Carina 4.7
51 NGC 2547 Vela 4.7
52 NGC 2244 Monoceros 4.8
53 Collinder 234 Carina 5.0
54 Collinder 233 Carina 5.0
55 IC 4756 Serpens Cauda 5.0
56 Collinder 203 Vela 5.0
57 M35 Gemini 5.1
58 Collinder 107 Monoceros 5.1
59 NGC 6025 Triangulum Australe 5.1
60 M34 Perseus 5.2
61 NGC 6871 Cygnus 5.2
62 NGC 6193 Ara 5.2
63 Collinder 411 Octans 5.3
64 NGC 3766 Centaurus 5.3
65 NGC 6281 Scorpius 5.4
66 NGC 6087 Norma 5.4
67 Collinder 97 Monoceros 5.4
68 NGC 2281 Auriga 5.4
69 NGC 6383 Scorpius 5.5
70 NGC 5662 Centaurus 5.5
71 M23 Sagittarius 5.5
72 Collinder 230 Carina 5.5
73 NGC 7686 Andromeda 5.6
74 NGC 5460 Centaurus 5.6
75 NGC 6067 Norma 5.6
76 M37 Auriga 5.6
77 NGC 752 Andromeda 5.7
78 NGC 6416 Scorpius 5.7
79 NGC 1502 Camelopardalis 5.7
80 NGC 6124 Scorpius 5.8
81 M11 Scutum 5.8
82 NGC 2477 Puppis 5.8
83 M48 Hydra 5.8
84 NGC 6250 Ara 5.9
85 M21 Sagittarius 5.9
86 NGC 2169 Orion 5.9
87 NGC 5281 Centaurus 5.9
88 M50 Monoceros 5.9
89 Collinder 29 Perseus 5.9
90 NGC 6885 Vulpecula 6.0
91 NGC 6605 Serpens Cauda 6.0
92 NGC 5316 Centaurus 6.0
93 NGC 2301 Monoceros 6.0
94 Collinder 367 Sagittarius 6.0
95 M17 Sagittarius 6.0
96 NGC 3228 Vela 6.0
97 M36 Auriga 6.0
98 NGC 1746 Taurus 6.0
99 NGC 6322 Scorpius 6.0
100 M16 Serpens Cauda 6.0
101 Collinder 202 Vela 6.1
102 NGC 7160 Cepheus 6.1
103 M46 Puppis 6.1
104 Collinder 350 Ophiuchus 6.1
105 NGC 2669 Vela 6.1
106 M93 Puppis 6.2
107 NGC 1545 Perseus 6.2
108 NGC 2546 Puppis 6.3
109 M20 Sagittarius 6.3
110 NGC 6940 Vulpecula 6.3
111 Collinder 394 Sagittarius 6.3
112 NGC 5617 Centaurus 6.3
113 Collinder 91 Monoceros 6.4
114 NGC 6242 Scorpius 6.4
115 M38 Auriga 6.4
116 NGC 7243 Lacerta 6.4
117 NGC 1528 Perseus 6.4
118 NGC 1662 Orion 6.4
119 NGC 457 Cassiopeia 6.4
120 NGC 1647 Taurus 6.4
121 NGC 6604 Serpens Cauda 6.5
122 NGC 2354 Canis Major 6.5
123 NGC 2539 Puppis 6.5
124 NGC 129 Cassiopeia 6.5
125 IC 1848 Cassiopeia 6.5
126 NGC 2527 Puppis 6.5
127 IC 1805 Cassiopeia 6.5
128 NGC 654 Cassiopeia 6.5
129 NGC 1444 Perseus 6.6
130 M29 Cygnus 6.6
131 NGC 3572 Carina 6.6
132 Collinder 316 Scorpius 6.6
133 NGC 2129 Gemini 6.7
134 NGC 7209 Lacerta 6.7
135 NGC 1027 Cassiopeia 6.7
136 NGC 3324 Carina 6.7
137 NGC 6709 Aquila 6.7
138 Collinder 197 Vela 6.7
139 NGC 6167 Norma 6.7
140 NGC 7789 Cassiopeia 6.7
141 NGC 1342 Perseus 6.7
142 NGC 2423 Puppis 6.7
143 Collinder 336 Scorpius 6.7
144 NGC 2343 Monoceros 6.7
145 IC 1369 Cygnus 6.8
146 NGC 2175 Orion 6.8
147 Collinder 232 Carina 6.8
148 NGC 6811 Cygnus 6.8
149 NGC 4609 Crux 6.9
150 NGC 6716 Sagittarius 6.9
151 IC 4651 Ara 6.9
152 NGC 2439 Puppis 6.9
153 Collinder 299 Norma 6.9
154 M67 Cancer 6.9
155 M18 Sagittarius 6.9
156 M52 Cassiopeia 6.9
157 Collinder 241 Carina 6.9
158 NGC 1582 Perseus 7.0
159 NGC 4103 Crux 7.0
160 NGC 6169 Norma 7.0
161 NGC 7063 Cygnus 7.0
162 Collinder 111 Monoceros 7.0
163 NGC 1857 Auriga 7.0
164 Collinder 401 Aquila 7.0
165 NGC 2467 Puppis 7.0
166 NGC 2396 Puppis 7.0
167 Collinder 36 Cassiopeia 7.0
168 NGC 2571 Puppis 7.0
169 NGC 6595 Sagittarius 7.0
170 Collinder 231 Carina 7.0
171 IC 2488 Vela 7.0
172 NGC 5822 Lupus 7.0
173 NGC 1807 Taurus 7.0
174 NGC 225 Cassiopeia 7.0
175 NGC 663 Cassiopeia 7.1
176 NGC 2353 Monoceros 7.1
177 NGC 6823 Vulpecula 7.1
178 Collinder 155 Puppis 7.1
179 Collinder 258 Crux 7.1
180 NGC 7082 Cygnus 7.2
181 NGC 6178 Scorpius 7.2
182 NGC 2335 Monoceros 7.2
183 NGC 6208 Ara 7.2
184 NGC 4463 Musca 7.2
185 IC 5146 Cygnus 7.2
186 NGC 6425 Scorpius 7.2
187 NGC 7380 Cepheus 7.2
188 NGC 6134 Norma 7.2
189 NGC 2360 Canis Major 7.2
190 NGC 2910 Vela 7.2
191 NGC 2251 Monoceros 7.3
192 IC 4996 Cygnus 7.3
193 Collinder 96 Monoceros 7.3
194 NGC 6819 Cygnus 7.3
195 NGC 2482 Puppis 7.3
196 IC 348 Perseus 7.3
197 Collinder 21 Triangulum 7.3
198 NGC 3330 Vela 7.4
199 NGC 6200 Ara 7.4
200 NGC 4349 Crux 7.4

Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EST

Color scheme