Dog-Star Observatory
Messier Objects
M1–M20 •
M21–M40 •
M41–M60 •
M61–M80 •
M81–M100 •
M101–M110
These are pictures from the Messier list of deep-sky objects. I have taken them within the last year with my Seestar S50 robotic telescope.
I was assisted in the creation of this page by GPT4.0 and GPT5. I humbly thank both for their assistance!
A few pictures are missing but i will either make them or take them and add them here.
I may change the structure of the web site but for now this url will work. Let me know if you have any problems - gmsantoro@gmail.com.
M1 – Crab Nebula
Constellation: Taurus
Type: Supernova remnant (pulsar wind nebula)
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M3 – Object M3
Constellation: Canes Venatici
Type: Globular cluster
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M6 – Butterfly Cluster
Constellation: Scorpius
Type: Open cluster (Butterfly Cluster)
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M7 – Ptolemy's Cluster
Constellation: Scorpius
Type: Open cluster (Ptolemy’s Cluster)
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M8 – Lagoon Nebula
Constellation: Sagittarius
Type: Emission nebula (H II region, Lagoon Nebula)
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M11 – Wild Duck Cluster
Constellation: Scutum
Type: Open cluster (Wild Duck Cluster)
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M13 – Hercules Globular Cluster
Constellation: Hercules
Type: Globular cluster
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M16 – Eagle Nebula
Constellation: Serpens
Type: Emission nebula (H II region, Eagle Nebula)
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M17 – Omega Nebula
Constellation: Sagittarius
Type: Emission nebula (H II region, Omega/Swan Nebula)
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M20 – Trifid Nebula
Constellation: Sagittarius
Type: Emission/reflection nebula with open cluster (Trifid Nebula)
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M21 – Object M21 - Webb's cross cluster
Constellation: Sagittarius Unknown
Type: Unknown
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M22 – Object M22 - Great Sagittarius Cluster
Constellation: Sagittarius
Type: Globular cluster
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M24 – Object M24 - Small Sagittarius star cloud
Constellation: Sagittarius
Type: star cloud
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M27 – Object M27 - dumbbell nebula
Constellation: Vulpecula
Type: Planetary nebula
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M29 – Object M29 - Cooling tower cluster
Constellation: Cygnus
Type: Open cluster
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M30 – Object M30 - jellyfish cluster
Constellation: Capricornus
Type: Globular cluster
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M31 – Andromeda Galaxy
Constellation: Andromeda
Type: Spiral galaxy (Andromeda Galaxy)
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M33 – Triangulum Galaxy
Constellation: Triangulum
Type: Spiral galaxy (Triangulum Galaxy)
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M40 – Winnecke 4
Constellation: Ursa Major
Type: Double star (asterism)
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M42 – Orion Nebula
Constellation: Orion
Type: Emission nebula (H II region, Orion Nebula)
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M43 – De Mairan's Nebula
Constellation: Orion
Type: Emission nebula (H II region)
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M44 – Beehive Cluster
Constellation: Cancer
Type: Open cluster (Praesepe)
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M45 – Pleiades
Constellation: Taurus
Type: Open cluster (with reflection nebulosity)
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M51 – Whirlpool Galaxy
Constellation: Canes Venatici
Type: Spiral galaxy (interacting pair)
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M57 – Ring Nebula
Constellation: Lyra
Type: Planetary nebula (Ring Nebula)
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M63 – Sunflower Galaxy
Constellation: Canes Venatici
Type: Spiral galaxy (Sunflower Galaxy)
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M64 – Black Eye Galaxy
Constellation: Coma Berenices
Type: Spiral galaxy (Black Eye Galaxy)
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M76 – Little Dumbbell Nebula
Constellation: Perseus
Type: Planetary nebula (Little Dumbbell Nebula)
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M81 – Bode's Galaxy
Constellation: Ursa Major
Type: Spiral galaxy (Bode's Galaxy)
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M82 – Cigar Galaxy
Constellation: Ursa Major
Type: Starburst galaxy (Cigar Galaxy)
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M83 – Southern Pinwheel Galaxy
Constellation: Hydra
Type: Barred spiral galaxy
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M87 – Virgo A
Constellation: Virgo
Type: Elliptical galaxy (Virgo A)
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M97 – Owl Nebula
Constellation: Ursa Major
Type: Planetary nebula (Owl Nebula)
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M99 – Coma Pinwheel Galaxy
Constellation: Coma Berenices
Type: Spiral galaxy (Coma Pinwheel Galaxy)
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M101 – Pinwheel Galaxy
Constellation: Ursa Major
Type: Spiral galaxy (Pinwheel Galaxy)
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M102 – Spindle Galaxy
Constellation: Draco
Type: Lenticular galaxy (Spindle Galaxy)
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M104 – Sombrero Galaxy
Constellation: Virgo
Type: Spiral galaxy (Sombrero Galaxy)
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M108 – Surfboard Galaxy
Constellation: Ursa Major
Type: Spiral galaxy (Surfboard Galaxy)
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