Deep Sky Catalog
Messier objects, nebulae, galaxies, and clusters with observing guides by difficulty.
M99 (NGC 4254) Observation Guide — Spiral Galaxy in Coma Berenices
M99 (NGC 4254) Observation Guide — Spiral Galaxy in Coma Berenices
An observing guide for M99 (NGC 4254). Learn how to locate and observe this Magnitude 9.9 spiral galaxy in Coma Berenices.
M98 (NGC 4192) Observation Guide — Spiral Galaxy in Coma Berenices
M98 (NGC 4192) Observation Guide — Spiral Galaxy in Coma Berenices
An observing guide for M98 (NGC 4192). Learn how to locate and observe this Magnitude 10.1 spiral galaxy in Coma Berenices.
M97 — The Owl Nebula: Complete Guide to Ursa Major's Planetary Nebula
M97 — The Owl Nebula: Complete Guide to Ursa Major's Planetary Nebula
An observing guide for the Owl Nebula (M97). Learn how to locate and observe this Magnitude 9.9 planetary nebula in Ursa Major.
M96 (NGC 3368) Observation Guide — Spiral Galaxy in Leo
M96 (NGC 3368) Observation Guide — Spiral Galaxy in Leo
An observing guide for M96 (NGC 3368). Learn how to locate and observe this Magnitude 9.2 spiral galaxy in Leo.
M95 (NGC 3351) Observation Guide — Barred Spiral Galaxy in Leo
M95 (NGC 3351) Observation Guide — Barred Spiral Galaxy in Leo
An observing guide for M95 (NGC 3351). Learn how to locate and observe this Magnitude 9.7 barred spiral galaxy in Leo.
M94 (NGC 4736) Observation Guide — Spiral Galaxy in Canes Venatici
M94 (NGC 4736) Observation Guide — Spiral Galaxy in Canes Venatici
An observing guide for M94 (NGC 4736). Learn how to locate and observe this Magnitude 8.2 spiral galaxy in Canes Venatici.
M93 (NGC 2447) Observation Guide — Open Cluster in Puppis
M93 (NGC 2447) Observation Guide — Open Cluster in Puppis
An observing guide for M93 (NGC 2447). Learn how to locate and observe this Magnitude 6 open cluster in Puppis.
M92 (NGC 6341) Observation Guide — Globular Cluster in Hercules
M92 (NGC 6341) Observation Guide — Globular Cluster in Hercules
An observing guide for M92 (NGC 6341). Learn how to locate and observe this Magnitude 6.4 globular cluster in Hercules.
M91 (NGC 4548) Observation Guide — Barred Spiral Galaxy in Coma Berenices
M91 (NGC 4548) Observation Guide — Barred Spiral Galaxy in Coma Berenices
An observing guide for M91 (NGC 4548). Learn how to locate and observe this Magnitude 10.2 barred spiral galaxy in Coma Berenices.
M90 (NGC 4569) Observation Guide — Spiral Galaxy in Virgo
M90 (NGC 4569) Observation Guide — Spiral Galaxy in Virgo
An observing guide for M90 (NGC 4569). Learn how to locate and observe this Magnitude 9.5 spiral galaxy in Virgo.
M9 (NGC 6333) Observation Guide — Globular Cluster in Ophiuchus
M9 (NGC 6333) Observation Guide — Globular Cluster in Ophiuchus
An observing guide for M9 (NGC 6333). Learn how to locate and observe this Magnitude 7.7 globular cluster in Ophiuchus.
M89 (NGC 4552) Observation Guide — An Elliptical Galaxy in Virgo
M89 (NGC 4552) Observation Guide — An Elliptical Galaxy in Virgo
Your guide to observing M89 (NGC 4552), a Magnitude 9.8 elliptical galaxy in the constellation Virgo.
M88 (NGC 4501) Observation Guide — A Spiral Galaxy in Coma Berenices
M88 (NGC 4501) Observation Guide — A Spiral Galaxy in Coma Berenices
Your guide to observing M88 (NGC 4501), a Magnitude 9.6 spiral galaxy in the constellation Coma Berenices.
M87 (Virgo A) Complete Guide — The Giant Elliptical Galaxy in Virgo
M87 (Virgo A) Complete Guide — The Giant Elliptical Galaxy in Virgo
Your guide to observing Virgo A (M87). How to find and observe this magnitude 8.6 elliptical galaxy in the constellation Virgo.
M86 (NGC 4406) Observation Guide — A Lenticular Galaxy in Virgo
M86 (NGC 4406) Observation Guide — A Lenticular Galaxy in Virgo
Your guide to observing M86 (NGC 4406), a Magnitude 8.9 lenticular galaxy in the constellation Virgo.
M85 (NGC 4382) Observation Guide — A Lenticular Galaxy in Coma Berenices
M85 (NGC 4382) Observation Guide — A Lenticular Galaxy in Coma Berenices
How to observe M85 (NGC 4382), a Magnitude 9.1 lenticular galaxy in the constellation Coma Berenices.
M84 (NGC 4374) Observation Guide — A Lenticular Galaxy in Virgo
M84 (NGC 4374) Observation Guide — A Lenticular Galaxy in Virgo
A guide to observing M84 (NGC 4374), a magnitude 9.1 lenticular galaxy in the constellation Virgo.
M83 (Southern Pinwheel Galaxy) Complete Guide — A Spiral Galaxy in Hydra
M83 (Southern Pinwheel Galaxy) Complete Guide — A Spiral Galaxy in Hydra
Your guide to observing the Southern Pinwheel Galaxy (M83). How to find and observe this magnitude 7.6 spiral galaxy in the constellation Hydra.
M82 (Cigar Galaxy) Complete Guide — The Irregular Galaxy in Ursa Major
M82 (Cigar Galaxy) Complete Guide — The Irregular Galaxy in Ursa Major
Your guide to observing the Cigar Galaxy (M82). How to find and observe this magnitude 8.4 irregular galaxy in Ursa Major.
The Complete Guide to M81 (Bode's Galaxy) — A Spiral Galaxy in Ursa Major
The Complete Guide to M81 (Bode's Galaxy) — A Spiral Galaxy in Ursa Major
Your guide to observing Bode's Galaxy (M81). Learn how to find and view this magnitude 6.9 spiral galaxy in the constellation Ursa Major.
M80 (NGC 6093) Observation Guide — A Globular Cluster in Scorpius
M80 (NGC 6093) Observation Guide — A Globular Cluster in Scorpius
Your guide to observing M80 (NGC 6093), a Magnitude 7.3 globular cluster tucked away in the constellation Scorpius.
M8 (Lagoon Nebula) Complete Guide — An Emission Nebula in Sagittarius
M8 (Lagoon Nebula) Complete Guide — An Emission Nebula in Sagittarius
A guide to observing the Lagoon Nebula (M8), a Magnitude 6 emission nebula in Sagittarius. Tips on finding it, recommended gear, and astrophotography advice.
M79 (NGC 1904) Observation Guide — A Globular Cluster in Lepus
M79 (NGC 1904) Observation Guide — A Globular Cluster in Lepus
Your guide to observing M79 (NGC 1904), a Magnitude 7.7 globular cluster tucked away in the constellation Lepus.
M78 (NGC 2068) Observation Guide — A Diffuse Nebula in Orion
M78 (NGC 2068) Observation Guide — A Diffuse Nebula in Orion
Your guide to observing M78 (NGC 2068), a magnitude 8.3 diffuse nebula in the constellation Orion.
M77 (NGC 1068) Observation Guide — The Spiral Galaxy in Cetus
M77 (NGC 1068) Observation Guide — The Spiral Galaxy in Cetus
A practical guide to observing M77 (NGC 1068), a Magnitude 8.9 spiral galaxy in the constellation Cetus.
M76 (Little Dumbbell Nebula) Complete Guide — A Planetary Nebula in Perseus
M76 (Little Dumbbell Nebula) Complete Guide — A Planetary Nebula in Perseus
Your guide to observing the Little Dumbbell Nebula (M76). How to find and observe this magnitude 10.1 planetary nebula in the constellation Perseus.
M75 (NGC 6864) Observation Guide — A Globular Cluster in Sagittarius
M75 (NGC 6864) Observation Guide — A Globular Cluster in Sagittarius
Your guide to observing M75 (NGC 6864), a Magnitude 8.5 globular cluster tucked away in Sagittarius.
M74 (NGC 628) Observation Guide — The Spiral Galaxy in Pisces
M74 (NGC 628) Observation Guide — The Spiral Galaxy in Pisces
A guide to observing M74 (NGC 628), a Magnitude 9.4 spiral galaxy in the constellation Pisces.
M73 (NGC 6994) Observation Guide — An Asterism in Aquarius
M73 (NGC 6994) Observation Guide — An Asterism in Aquarius
A guide to observing M73 (NGC 6994), a Magnitude 9 asterism in Aquarius. Tips on locating, viewing, and photographing this subtle deep-sky target.
M72 (NGC 6981) Observation Guide -- A Globular Cluster in Aquarius
M72 (NGC 6981) Observation Guide -- A Globular Cluster in Aquarius
Your guide to observing M72 (NGC 6981), a Magnitude 9.3 globular cluster tucked away in Aquarius. Tips on locating, viewing, and photographing this deep-sky target.
M71 (NGC 6838) Observation Guide — A Globular Cluster in Sagitta
M71 (NGC 6838) Observation Guide — A Globular Cluster in Sagitta
Your guide to observing M71 (NGC 6838), a magnitude 8.2 globular cluster tucked away in the constellation Sagitta.
M70 (NGC 6681) Observation Guide — A Globular Cluster in Sagittarius
M70 (NGC 6681) Observation Guide — A Globular Cluster in Sagittarius
How to observe M70 (NGC 6681), a Magnitude 7.9 globular cluster in the constellation Sagittarius.
M7 (Ptolemy Cluster) Complete Guide — The Open Cluster in Scorpius
M7 (Ptolemy Cluster) Complete Guide — The Open Cluster in Scorpius
A guide to observing the Ptolemy Cluster (M7). How to find and observe this Magnitude 3.3 open cluster in Scorpius.
M69 (NGC 6637) Observation Guide — A Globular Cluster in Sagittarius
M69 (NGC 6637) Observation Guide — A Globular Cluster in Sagittarius
A guide to observing M69 (NGC 6637), a Magnitude 7.6 globular cluster in Sagittarius. Learn how to find and observe this deep-sky object.
M68 (NGC 4590) Observation Guide — A Globular Cluster in Hydra
M68 (NGC 4590) Observation Guide — A Globular Cluster in Hydra
A guide to observing M68 (NGC 4590), a Magnitude 7.8 globular cluster in the constellation Hydra.
M67 (NGC 2682) Observation Guide — An Open Cluster in Cancer
M67 (NGC 2682) Observation Guide — An Open Cluster in Cancer
A guide to observing M67 (NGC 2682), a magnitude 6.1 open cluster in the constellation Cancer.
M66 (NGC 3627) Observation Guide — A Spiral Galaxy in Leo
M66 (NGC 3627) Observation Guide — A Spiral Galaxy in Leo
A guide to observing M66 (NGC 3627), a Magnitude 8.9 spiral galaxy in the constellation Leo.
M65 (NGC 3623) Observation Guide — A Spiral Galaxy in Leo
M65 (NGC 3623) Observation Guide — A Spiral Galaxy in Leo
A guide to observing M65 (NGC 3623), a Magnitude 9.3 spiral galaxy in the constellation Leo.
M64 (Black Eye Galaxy) Complete Guide — A Spiral Galaxy in Coma Berenices
M64 (Black Eye Galaxy) Complete Guide — A Spiral Galaxy in Coma Berenices
Your guide to observing the Black Eye Galaxy (M64). How to find and observe this magnitude 8.5 spiral galaxy in Coma Berenices.
M63 (Sunflower Galaxy) Complete Guide — A Spiral Galaxy in Canes Venatici
M63 (Sunflower Galaxy) Complete Guide — A Spiral Galaxy in Canes Venatici
Your guide to observing the Sunflower Galaxy (M63). How to find and observe this magnitude 8.6 spiral galaxy in the constellation Canes Venatici.
M62 (NGC 6266) Observation Guide — A Globular Cluster in Ophiuchus
M62 (NGC 6266) Observation Guide — A Globular Cluster in Ophiuchus
A guide to observing M62 (NGC 6266), a Magnitude 6.5 globular cluster located in the constellation Ophiuchus.
M61 (NGC 4303) Observation Guide — A Spiral Galaxy in Virgo
M61 (NGC 4303) Observation Guide — A Spiral Galaxy in Virgo
A guide to observing M61 (NGC 4303), a magnitude 9.7 spiral galaxy in the constellation Virgo.
M60 (NGC 4649) Observation Guide — An Elliptical Galaxy in Virgo
M60 (NGC 4649) Observation Guide — An Elliptical Galaxy in Virgo
A complete guide to observing M60 (NGC 4649), a Magnitude 8.8 elliptical galaxy in the constellation Virgo.
M6 (Butterfly Cluster) Complete Guide — Open Cluster in Scorpius
M6 (Butterfly Cluster) Complete Guide — Open Cluster in Scorpius
A guide to observing the Butterfly Cluster (M6), a magnitude 4.2 open cluster in the constellation Scorpius.
M59 (NGC 4621) Observation Guide — An Elliptical Galaxy in Virgo
M59 (NGC 4621) Observation Guide — An Elliptical Galaxy in Virgo
A complete guide to observing M59 (NGC 4621), a magnitude 9.6 elliptical galaxy in the constellation Virgo.
M58 (NGC 4579) Observation Guide — A Barred Spiral Galaxy in Virgo
M58 (NGC 4579) Observation Guide — A Barred Spiral Galaxy in Virgo
A guide to observing M58 (NGC 4579), a barred spiral galaxy in Virgo at Magnitude 9.7. Tips on finding and photographing this deep-sky object.
M57 (Ring Nebula) Complete Guide — A Planetary Nebula in Lyra
M57 (Ring Nebula) Complete Guide — A Planetary Nebula in Lyra
An observing guide for the Ring Nebula (M57). How to find and observe this magnitude 8.8 planetary nebula in the constellation Lyra.
M56 (NGC 6779) Observation Guide — A Globular Cluster in Lyra
M56 (NGC 6779) Observation Guide — A Globular Cluster in Lyra
A complete guide to observing M56 (NGC 6779), a magnitude 8.3 globular cluster in the constellation Lyra.
M55 (NGC 6809) Observation Guide — A Globular Cluster in Sagittarius
M55 (NGC 6809) Observation Guide — A Globular Cluster in Sagittarius
A guide to observing M55 (NGC 6809), a magnitude 6.3 globular cluster in Sagittarius. Covers locating, viewing tips, and astrophotography advice.
M54 (NGC 6715) Observation Guide — A Globular Cluster in Sagittarius
M54 (NGC 6715) Observation Guide — A Globular Cluster in Sagittarius
A guide to observing M54 (NGC 6715), a Magnitude 7.6 globular cluster in the constellation Sagittarius.