Observed
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0% complete
Deep-sky observing challenge
Messier 110 Challenge
Work through the classic Messier catalog at your own pace. Mark objects observed, keep completion dates on this device, export your progress, and use StarStation’s observing tools to plan the next session.
Why Messier?
NASA describes Messier objects as popular backyard targets visible with binoculars or small telescopes under suitable skies. The Astronomical League also maintains a formal Messier Observing Program.
A real Messier target
M42 · Orion Nebula
The challenge is about finding real deep-sky objects, so the page should show the real sky. This Hubble mosaic of M42 combines 520 exposures and reveals the closest large star-forming region to Earth.
Image credit: NASA, ESA, M. Robberto (STScI/ESA), and the Hubble Space Telescope Orion Treasury Project Team.
NASA Messier 42 reference ↗Next milestone
70 objects
Personal progress toward the 70-object milestone.
Remaining
110
Objects not yet marked observed on this device.
Storage
Browser-local
Progress is private to this browser and can be included in Backup My StarStation.
Catalog progress
M1 through M110
110 objects
Messier
M1
Crab Nebula
Not yet observed
Messier
M2
Messier object 2
Not yet observed
Messier
M3
Messier object 3
Not yet observed
Messier
M4
Messier object 4
Not yet observed
Messier
M5
Messier object 5
Not yet observed
Messier
M6
Butterfly Cluster
Not yet observed
Messier
M7
Ptolemy's Cluster
Not yet observed
Messier
M8
Lagoon Nebula
Not yet observed
Messier
M9
Messier object 9
Not yet observed
Messier
M10
Messier object 10
Not yet observed
Messier
M11
Wild Duck Cluster
Not yet observed
Messier
M12
Messier object 12
Not yet observed
Messier
M13
Hercules Globular Cluster
Not yet observed
Messier
M14
Messier object 14
Not yet observed
Messier
M15
Messier object 15
Not yet observed
Messier
M16
Eagle Nebula
Not yet observed
Messier
M17
Omega Nebula
Not yet observed
Messier
M18
Messier object 18
Not yet observed
Messier
M19
Messier object 19
Not yet observed
Messier
M20
Trifid Nebula
Not yet observed
Messier
M21
Messier object 21
Not yet observed
Messier
M22
Great Sagittarius Cluster
Not yet observed
Messier
M23
Messier object 23
Not yet observed
Messier
M24
Sagittarius Star Cloud
Not yet observed
Messier
M25
Messier object 25
Not yet observed
Messier
M26
Messier object 26
Not yet observed
Messier
M27
Dumbbell Nebula
Not yet observed
Messier
M28
Messier object 28
Not yet observed
Messier
M29
Messier object 29
Not yet observed
Messier
M30
Messier object 30
Not yet observed
Messier
M31
Andromeda Galaxy
Not yet observed
Messier
M32
Messier object 32
Not yet observed
Messier
M33
Triangulum Galaxy
Not yet observed
Messier
M34
Messier object 34
Not yet observed
Messier
M35
Shoe Buckle Cluster
Not yet observed
Messier
M36
Messier object 36
Not yet observed
Messier
M37
Messier object 37
Not yet observed
Messier
M38
Starfish Cluster
Not yet observed
Messier
M39
Messier object 39
Not yet observed
Messier
M40
Winnecke 4
Not yet observed
Messier
M41
Messier object 41
Not yet observed
Messier
M42
Orion Nebula
Not yet observed
Messier
M43
De Mairan's Nebula
Not yet observed
Messier
M44
Beehive Cluster
Not yet observed
Messier
M45
Pleiades
Not yet observed
Messier
M46
Messier object 46
Not yet observed
Messier
M47
Messier object 47
Not yet observed
Messier
M48
Messier object 48
Not yet observed
Messier
M49
Messier object 49
Not yet observed
Messier
M50
Messier object 50
Not yet observed
Messier
M51
Whirlpool Galaxy
Not yet observed
Messier
M52
Messier object 52
Not yet observed
Messier
M53
Messier object 53
Not yet observed
Messier
M54
Messier object 54
Not yet observed
Messier
M55
Messier object 55
Not yet observed
Messier
M56
Messier object 56
Not yet observed
Messier
M57
Ring Nebula
Not yet observed
Messier
M58
Messier object 58
Not yet observed
Messier
M59
Messier object 59
Not yet observed
Messier
M60
Messier object 60
Not yet observed
Messier
M61
Messier object 61
Not yet observed
Messier
M62
Messier object 62
Not yet observed
Messier
M63
Sunflower Galaxy
Not yet observed
Messier
M64
Black Eye Galaxy
Not yet observed
Messier
M65
Messier object 65
Not yet observed
Messier
M66
Messier object 66
Not yet observed
Messier
M67
Messier object 67
Not yet observed
Messier
M68
Messier object 68
Not yet observed
Messier
M69
Messier object 69
Not yet observed
Messier
M70
Messier object 70
Not yet observed
Messier
M71
Messier object 71
Not yet observed
Messier
M72
Messier object 72
Not yet observed
Messier
M73
Messier object 73
Not yet observed
Messier
M74
Phantom Galaxy
Not yet observed
Messier
M75
Messier object 75
Not yet observed
Messier
M76
Little Dumbbell Nebula
Not yet observed
Messier
M77
Messier object 77
Not yet observed
Messier
M78
Messier object 78
Not yet observed
Messier
M79
Messier object 79
Not yet observed
Messier
M80
Messier object 80
Not yet observed
Messier
M81
Bode's Galaxy
Not yet observed
Messier
M82
Cigar Galaxy
Not yet observed
Messier
M83
Southern Pinwheel Galaxy
Not yet observed
Messier
M84
Messier object 84
Not yet observed
Messier
M85
Messier object 85
Not yet observed
Messier
M86
Messier object 86
Not yet observed
Messier
M87
Virgo A
Not yet observed
Messier
M88
Messier object 88
Not yet observed
Messier
M89
Messier object 89
Not yet observed
Messier
M90
Messier object 90
Not yet observed
Messier
M91
Messier object 91
Not yet observed
Messier
M92
Messier object 92
Not yet observed
Messier
M93
Messier object 93
Not yet observed
Messier
M94
Messier object 94
Not yet observed
Messier
M95
Messier object 95
Not yet observed
Messier
M96
Messier object 96
Not yet observed
Messier
M97
Owl Nebula
Not yet observed
Messier
M98
Messier object 98
Not yet observed
Messier
M99
Messier object 99
Not yet observed
Messier
M100
Messier object 100
Not yet observed
Messier
M101
Pinwheel Galaxy
Not yet observed
Messier
M102
Messier object 102
Not yet observed
Messier
M103
Messier object 103
Not yet observed
Messier
M104
Sombrero Galaxy
Not yet observed
Messier
M105
Messier object 105
Not yet observed
Messier
M106
Messier object 106
Not yet observed
Messier
M107
Messier object 107
Not yet observed
Messier
M108
Surfboard Galaxy
Not yet observed
Messier
M109
Messier object 109
Not yet observed
Messier
M110
Andromeda Satellite Galaxy
Not yet observed
Use it as an observing project
A checkmark is not the same as an observation.
StarStation’s challenge is a personal tracker. If you are pursuing an official observing certificate, follow the current rules of the organization issuing it and keep the required observing notes.
Before
Session Planner
Build a short Messier target list for a real observing night.
After
Observer Logbook
Record equipment, conditions, magnification, and what you actually saw.
Conditions
Tonight's Sky
Check clouds, wind, humidity, precipitation, and Moon timing before traveling.
Site
Dark-Sky Guide
Understand skyglow, glare, Bortle context, and safer site selection.
Catalog note
Why 110 when some databases list 109?
The modern observing tradition commonly treats the Messier catalog as 110 objects. NASA presents a 110-object catalog. HEASARC notes a historical ambiguity around M102 and therefore its electronic table contains 109 rows. StarStation keeps the familiar M1-M110 observing convention while linking readers to both authoritative explanations.