Messier marathon sequence
If you are participating in a Messier Marathon for your astronomy club or class, the following list shows the recommended sequence for viewing the Messier objects. The goal is to locate all 110 objects in a single night. This sequence is accurate for mid-Northern latitudes in the U.S. All that is needed is a good set of binoculars or a modest telescope, a keen eye, patience, and lots of stamina.
Sequence | Messier | Constellation | Mag | Difficulty |
1 | M77 | Cetus | 9.6 | Hard |
2 | M74 | Pisces | 10 | Hardest |
3 | M33 | Triangulum | 5.7 | Hard |
4 | M31 | Andromeda | 3.4 | Easiest |
5 | M32 | Andromeda | 8.1 | Intermediate |
6 | M110 | Andromeda | 8.9 | Hard |
7 | M52 | Cassiopeia | 6.9 | Intermediate |
8 | M103 | Cassiopeia | 7.4 | Easy |
9 | M76 | Perseus | 10.1 | Intermediate |
10 | M34 | Perseus | 5.5 | Easy |
11 | M45 | Taurus | 1.6 | Easy |
12 | M79 | Lepus | 8.7 | Intermediate |
13 | M42 | Orion | 4 | Easiest |
14 | M43 | Orion | 9 | Intermediate |
15 | M78 | Orion | 8.3 | Intermediate |
16 | M1 | Taurus | 8.4 | Intermediate |
17 | M35 | Gemini | 5.1 | Easy |
18 | M37 | Auriga | 6.2 | Easy |
19 | M36 | Auriga | 6.3 | Easy |
20 | M38 | Auriga | 7.4 | Easy |
21 | M41 | Canis Major | 4.5 | Easy |
22 | M93 | Puppis | 6.2 | Intermediate |
23 | M47 | Puppis | 4.2 | Easy |
24 | M46 | Puppis | 5.9 | Intermediate |
25 | M50 | Monocerus | 5.9 | Easy |
26 | M48 | Hydra | 5.8 | Intermediate |
27 | M44 | Cancer | 3.7 | Easy |
28 | M67 | Cancer | 6.1 | Intermediate |
28 | M95 | Leo | 11.4 | Hard |
29 | M96 | Leo | 10 | Hard |
31 | M105 | Leo | 10.2 | Hard |
32 | M65 | Leo | 10.3 | Intermediate |
33 | M66 | Leo | 8.9 | Easy |
34 | M81 | Ursa Major | 6.9 | Easy |
35 | M82 | Ursa Major | 8.4 | Easy |
36 | M97 | Ursa Major | 10 | Intermediate |
37 | M108 | Ursa Major | 10.7 | Hard |
38 | M109 | Ursa Major | 10.6 | Hard |
39 | M40 | Ursa Major | 9.6 | 10.1 | Easy |
40 | M106 | Canes Venatici | 8.4 | Hard |
41 | M94 | Canes Venatici | 9 | Intermediate |
42 | M63 | Canes Venatici | 9.3 | Intermediate |
43 | M51 | Canes Venatici | 8.4 | Intermediate |
44 | M101 | Ursa Major | 7.9 | Hardest |
45 | M102 | Draco | 10.7 | Intermediate |
46 | M53 | Coma Berenices | 8.3 | Intermediate |
47 | M64 | Coma Berenices | 8.5 | Intermediate |
48 | M3 | Canes Venatici | 6.2 | Easy |
49 | M98 | Coma Berenices | 11 | Hard |
50 | M99 | Coma Berenices | 10.5 | Hard |
51 | M100 | Coma Berenices | 9.5 | Hard |
52 | M85 | Coma Berenices | 10 | Hard |
53 | M84 | Virgo | 10.1 | Hard |
54 | M86 | Virgo | 9.8 | Hard |
55 | M87 | Virgo | 8.8 | Hard |
56 | M89 | Virgo | 9.8 | Hard |
57 | M90 | Virgo | 10.3 | Hard |
58 | M88 | Coma Berenices | 10.4 | Hard |
59 | M91 | Coma Berenices | 11 | Hard |
60 | M58 | Virgo | 10.5 | Hard |
61 | M59 | Virgo | 10.6 | Intermediate |
62 | M60 | Virgo | 9.8 | Hard |
63 | M49 | Virgo | 9.4 | Hard |
64 | M61 | Virgo | 10.2 | Intermediate |
65 | M104 | Virgo | 8.9 | Intermediate |
66 | M68 | Hydra | 9.7 | Hard |
67 | M83 | Hydra | 7.5 | Intermediate |
68 | M5 | Serpens Caput | 6.5 | Easy |
69 | M13 | Hercules | 5.8 | Easiest |
70 | M92 | Hercules | 6.3 | Easy |
71 | M57 | Lyra | 8.8 | Easy |
72 | M56 | Lyra | 8.3 | Intermediate |
73 | M29 | Cygnus | 6.6 | Easy |
74 | M39 | Cygnus | 5.5 | Easy |
75 | M27 | Vulpecula | 7.5 | Intermediate |
76 | M71 | Sagitta | 6.1 | Hard |
77 | M107 | Ophiucus | 8.9 | Intermediate |
78 | M12 | Ophiucus | 7.7 | Intermediate |
79 | M10 | Ophiucus | 6.4 | Intermediate |
80 | M14 | Ophiucus | 8.3 | Intermediate |
81 | M9 | Ophiucus | 8 | Intermediate |
82 | M4 | Scorpius | 5.9 | Intermediate |
83 | M80 | Scorpius | 7.9 | Intermediate |
84 | M19 | Ophiucus | 7.5 | Easy |
85 | M62 | Ophiucus | 6.5 | Hard |
86 | M6 | Scorpius | 4.2 | Easy |
87 | M7 | Scorpius | 3.3 | Easy |
88 | M11 | Scutum | 5.8 | Easy |
89 | M26 | Scutum | 8 | Easy |
90 | M16 | Serpens Claudia | 6 | Easy |
91 | M17 | Sagittarius | 6 | Intermediate |
92 | M18 | Sagittarius | 7.5 | Easy |
93 | M24 | Sagittarius | 2.5 | Easy |
94 | M25 | Sagittarius | 4.9 | Easy |
95 | M23 | Sagittarius | 5.5 | Easy |
96 | M21 | Sagittarius | 6.5 | Easy |
97 | M20 | Sagittarius | 6.3 | Easy |
98 | M8 | Sagittarius | 6 | Easy |
99 | M28 | Sagittarius | 7.7 | Intermediate |
100 | M22 | Sagittarius | 5.1 | Easiest |
101 | M69 | Sagittarius | 8.3 | Intermediate |
102 | M70 | Sagittarius | 9 | Intermediate |
103 | M54 | Sagittarius | 8.4 | Intermediate |
104 | M55 | Sagittarius | 7.4 | Intermediate |
105 | M75 | Sagittarius | 9.2 | Intermediate |
106 | M15 | Pegasus | 6.4 | Easy |
107 | M2 | Aquarius | 6.3 | Easy |
108 | M72 | Aquarius | 9.4 | Hard |
109 | M73 | Aquarius | 9 | Easy |
110 | M30 | Capricornus | 7.7 | Intermediate |