Brightest Open Clusters

Number                          Name                              Constellation                                                                   Magnitude

1	M45	Taurus	1.6
2	IC 2602	Carina	1.9
3	IC 2391	Vela	2.5
4	NGC 6231	Scorpius	2.6
5	NGC 2451	Puppis	2.8
6	NGC 3532	Carina	3.0
7	M44	Cancer	3.1
8	M7	Scorpius	3.3
9	NGC 2516	Carina	3.8
10	NGC 2232	Monoceros	3.9
11	NGC 2264	Monoceros	3.9
12	M42	Orion	4.0
13	NGC 869	Perseus	4.0
14	NGC 884	Perseus	4.0
15	NGC 2362	Canis Major	4.1
16	M6	Scorpius	4.2
17	NGC 4755	Crux	4.2
18	IC 4665	Ophiuchus	4.2
19	NGC 3114	Carina	4.2
20	IC 2581	Carina	4.3
21	M47	Puppis	4.4
22	M41	Canis Major	4.5
23	M25	Sagittarius	4.6
24	M39	Cygnus	4.6
25	IC 2395	Vela	4.6
26	NGC 1981	Orion	4.6
27	NGC 6530	Sagittarius	4.6
28	NGC 6633	Ophiuchus	4.6
29	NGC 2547	Vela	4.7
30	NGC 3293	Carina	4.7
31	NGC 2244	Monoceros	4.8
32	IC 4756	Serpens Cauda	5.0
33	M35	Gemini	5.1
34	NGC 6025	Triangulum Australe	5.1
35	M34	Perseus	5.2
36	NGC 6193	Ara	5.2
37	NGC 6871	Cygnus	5.2
38	NGC 3766	Centaurus	5.3
39	NGC 6087	Norma	5.4
40	NGC 2281	Auriga	5.4
41	NGC 6281	Scorpius	5.4
42	NGC 6383	Scorpius	5.5
43	M23	Sagittarius	5.5
44	NGC 5662	Centaurus	5.5
45	NGC 6067	Norma	5.6
46	M37	Auriga	5.6
47	NGC 5460	Centaurus	5.6
48	NGC 7686	Andromeda	5.6
49	NGC 6416	Scorpius	5.7
50	NGC 752	Andromeda	5.7
51	NGC 1502	Camelopardalis	5.7
52	M11	Scutum	5.8
53	M48	Hydra	5.8
54	NGC 6124	Scorpius	5.8
55	NGC 2477	Puppis	5.8
56	NGC 2169	Orion	5.9
57	M21	Sagittarius	5.9
58	M50	Monoceros	5.9
59	NGC 6250	Ara	5.9
60	NGC 5281	Centaurus	5.9
61	M16	Serpens Cauda	6.0
62	M17	Sagittarius	6.0
63	M36	Auriga	6.0
64	NGC 3228	Vela	6.0
65	NGC 2301	Monoceros	6.0
66	NGC 6885	Vulpecula	6.0
67	NGC 1746	Taurus	6.0
68	NGC 6605	Serpens Cauda	6.0
69	NGC 5316	Centaurus	6.0
70	NGC 6322	Scorpius	6.0
71	M46	Puppis	6.1
72	NGC 7160	Cepheus	6.1
73	NGC 2669	Vela	6.1
74	M93	Puppis	6.2
75	NGC 1545	Perseus	6.2
76	M20	Sagittarius	6.3
77	NGC 2546	Puppis	6.3
78	NGC 6940	Vulpecula	6.3
79	NGC 5617	Centaurus	6.3
80	M38	Auriga	6.4
81	NGC 1647	Taurus	6.4
82	NGC 1662	Orion	6.4
83	NGC 7243	Lacerta	6.4
84	NGC 6242	Scorpius	6.4
85	NGC 457	Cassiopeia	6.4
86	NGC 1528	Perseus	6.4
87	NGC 2527	Puppis	6.5
88	NGC 2539	Puppis	6.5
89	NGC 654	Cassiopeia	6.5
90	IC 1805	Cassiopeia	6.5
91	IC 1848	Cassiopeia	6.5
92	NGC 2354	Canis Major	6.5
93	NGC 6604	Serpens Cauda	6.5
94	NGC 129	Cassiopeia	6.5
95	M29	Cygnus	6.6
96	NGC 3572	Carina	6.6
97	NGC 1444	Perseus	6.6
98	NGC 7789	Cassiopeia	6.7
99	NGC 1342	Perseus	6.7
100	NGC 1027	Cassiopeia	6.7
101	NGC 6167	Norma	6.7
102	NGC 7209	Lacerta	6.7
103	NGC 2343	Monoceros	6.7
104	NGC 3324	Carina	6.7
105	NGC 2423	Puppis	6.7
106	NGC 2129	Gemini	6.7
107	NGC 6709	Aquila	6.7
108	NGC 2175	Orion	6.8
109	NGC 6811	Cygnus	6.8
110	IC 1369	Cygnus	6.8
111	M18	Sagittarius	6.9
112	M52	Cassiopeia	6.9
113	M67	Cancer	6.9
114	NGC 4609	Crux	6.9
115	IC 4651	Ara	6.9
116	NGC 2439	Puppis	6.9
117	NGC 6716	Sagittarius	6.9
118	NGC 4103	Crux	7.0
119	NGC 225	Cassiopeia	7.0
120	NGC 2571	Puppis	7.0
121	NGC 5822	Lupus	7.0
122	NGC 6169	Norma	7.0
123	IC 2488	Vela	7.0
124	NGC 6595	Sagittarius	7.0
125	NGC 2396	Puppis	7.0
126	NGC 1807	Taurus	7.0
127	NGC 2467	Puppis	7.0
128	NGC 1857	Auriga	7.0
129	NGC 1582	Perseus	7.0
130	NGC 7063	Cygnus	7.0
131	NGC 663	Cassiopeia	7.1
132	NGC 6823	Vulpecula	7.1
133	NGC 2353	Monoceros	7.1
134	NGC 7082	Cygnus	7.2
135	NGC 4463	Musca	7.2
136	NGC 6425	Scorpius	7.2
137	NGC 6134	Norma	7.2
138	NGC 2910	Vela	7.2
139	NGC 6178	Scorpius	7.2
140	NGC 6208	Ara	7.2
141	NGC 2335	Monoceros	7.2
142	NGC 2360	Canis Major	7.2
143	IC 5146	Cygnus	7.2
144	NGC 7380	Cepheus	7.2
145	IC 348	Perseus	7.3
146	NGC 2251	Monoceros	7.3
147	NGC 6819	Cygnus	7.3
148	IC 4996	Cygnus	7.3
149	NGC 2482	Puppis	7.3
150	NGC 2567	Puppis	7.4
151	NGC 6200	Ara	7.4
152	M103	Cassiopeia	7.4
153	NGC 6910	Cygnus	7.4
154	NGC 3330	Vela	7.4
155	NGC 2384	Canis Major	7.4
156	NGC 4349	Crux	7.4
157	NGC 1893	Auriga	7.5
158	NGC 6755	Aquila	7.5
159	NGC 2579	Puppis	7.5
160	NGC 2286	Monoceros	7.5
161	NGC 2506	Monoceros	7.6
162	NGC 957	Perseus	7.6
163	NGC 2533	Puppis	7.6
164	NGC 5138	Centaurus	7.6
165	NGC 1664	Auriga	7.6
166	NGC 6866	Cygnus	7.6
167	NGC 3680	Centaurus	7.6
168	NGC 7039	Cygnus	7.6
169	NGC 2483	Puppis	7.6
170	NGC 7235	Cepheus	7.7
171	NGC 2345	Canis Major	7.7
172	NGC 1778	Auriga	7.7
173	NGC 5606	Centaurus	7.7
174	NGC 1817	Taurus	7.7
175	NGC 6834	Cygnus	7.8
176	NGC 2670	Vela	7.8
177	NGC 6939	Cepheus	7.8
178	NGC 6664	Scutum	7.8
179	NGC 659	Cassiopeia	7.9
180	NGC 6830	Vulpecula	7.9
181	NGC 5823	Circinus	7.9
182	NGC 7510	Cepheus	7.9
183	NGC 744	Perseus	7.9
184	NGC 2367	Canis Major	7.9
185	NGC 2414	Puppis	7.9
186	NGC 2489	Puppis	7.9
187	NGC 6738	Aquila	8.0
188	M26	Scutum	8.0
189	NGC 6451	Scorpius	8.0
190	NGC 2252	Monoceros	8.0
191	NGC 6469	Sagittarius	8.0
192	NGC 6152	Norma	8.0
193	NGC 2925	Vela	8.0
194	NGC 2627	Pyxis	8.0
195	NGC 6520	Sagittarius	8.0
196	NGC 6883	Cygnus	8.0
197	NGC 6546	Sagittarius	8.0
198	NGC 2374	Canis Major	8.0
199	NGC 5925	Norma	8.0
200	NGC 6259	Scorpius	8.0