Non-Messier objects in this database, sorted by type

Here we present some deep sky objects which are not in Messier's catalog, because of their relevance either in astronomical history, as observing objects, or other. In the list below, they are arranged by object type.

Also look at our list of these objects sorted by catalog number.

Nebulae:

Supernova Remnants:
- Barnard's Loop (?; May be a diffuse nebula)
Planetary Nebulae:
- NGC 2438, planetary nebula in front of M46
- NGC 6543, the Cat Eye nebula, that planetary near the North Ecliptic Pole
- NGC 7009, the Saturn Nebula
- NGC 7293, the Helix Nebula
Starforming Nebulae: (each of them containing young open star clusters)
- NGC 2023 near the Horsehead Nebula
- NGC 2237, 2238, 2239, 2246, parts of the Rosette Nebula
- NGC 2264, the Cone Nebula and associated cluster
- NGC 3372, the Eta Carinae nebula
- NGC 7000, the North America Nebula
- IC 434, the emission nebula behind the Horsehead Nebula
Other Diffuse Nebulae:
- Barnard's Loop (?; may be an SNR)
Dark Nebulae:
- Barnard 33, the Horsehead Nebula
- Barnard 92, dark nebula associated with M24
- Barnard 93, dark nebula associated with M24
- Coalsack

Clusters:

Open clusters: (include here the young clusters in the starforming nebulae listed above)
- NGC 188, one of the oldest open clusters
- NGC 189, open cluster in Cassiopeia, discovered by Caroline Herschel
- NGC 225, open cluster in Cassiopeia, discovered by Caroline Herschel
- NGC 381, open cluster in Cassiopeia, discovered by Caroline Herschel
- NGC 659, open cluster in Cassiopeia, discovered by Caroline Herschel
- NGC 752, bright cluster in Andromeda, probably discovered by Hodierna
- NGC 869 = h Persei, double cluster with chi.
- NGC 884 = chi Persei, double cluster with h.
- NGC 2169, open cluster in Orion, possibly Hodierna IV.10
- NGC 2175, open cluster in Orion, possibly Hodierna IV.11
- NGC 2204, open cluster in Canis Major
- NGC 2244, cluster in the Rosette Nebula
- NGC 2264, the Cone Nebula and associated cluster
- NGC 2349, open cluster in Monoceros, discovered by Caroline Herschel
- NGC 2360, open cluster in Canis Major, discovered by Caroline Herschel
- NGC 2362, the Tau CMa cluster, or Mexican Jumping Star
- NGC 2451, bright cluster in Puppis, perhaps discovered by Hodierna before 1654
- NGC 2477, Lacaille I.3, rich and bright cluster in Puppis
- NGC 2516, Lacaille II.3, bright cluster in Carina
- NGC 2546, Lacaille II.4, considerable cluster in Puppis
- NGC 2547, Lacaille III.2, considerable cluster in Vela
- NGC 3228, Lacaille II.7, considerable southern open cluster in Vela
- NGC 3293, Lacaille II.8, bright open cluster in Carina
- NGC 3532, Lacaille II.10, bright open cluster in Carina
- NGC 3766, Lacaille III.7, considerable southern cluster in Centaurus
- NGC 4755, Kappa Cruxis, the Jewel Box cluster, Lacaille II.12
- NGC 5281, Lacaille I.7, Southern open cluster in Centaurus
- NGC 5662, Lacaille III.8, considerable southern cluster in Centaurus
- NGC 6025, considerable open cluster in Triangulum Australe, Lacaille III.10
- NGC 6124, considerable open cluster in Scorpius, Lacaille I.8
- NGC 6231, bright open cluster in Scorpius, discovered by Hodierna, Lacaille II.13
- NGC 6242, open cluster in Scorpius, Lacaille I.10
- NGC 6530, open cluster associated with the Lagoon Nebula M8
- NGC 6603, faint open cluster in star cloud M24
- NGC 6633, bright open cluster in Ophiuchus, discovered by De Chéseaux
- NGC 6819, open cluster in Cygnus, discovered by Caroline Herschel
- NGC 6866, open cluster in Cygnus, discovered by Caroline Herschel
- NGC 7380, open cluster with nebula in Cepheus, discovered by Caroline Herschel
- NGC 7789, bright open cluster in Cassiopeia, discovered by Caroline Herschel
- IC 2391, the omicron Velorum cluster, which was known to Al Sufi in 964 AD
- IC 2488, Lacaille III.4, inconspicuous southern cluster in Vela
- IC 2602, the theta Carinae cluster, also called the Southern Pleiades; Lacaille II.9
- IC 4665, coarse bright cluster in Ophiuchus, discovered by De Chéseaux
- The Alpha Persei Moving Cluster (Mel 20)
- Brocchi's Cluster (Collinder 399)
- Collinder 140, open cluster in southern Canis Major, possibly Lacaille II.2
- Collinder 228, open cluster within the Great Carina Nebula, possibly Lacaille III.5
- The Coma Star Cluster (Mel 111)
- The Hyades (Mel 25)
- Trumpler 10, open cluster, presumably Lacaille II.6
- The Ursa Major Moving Cluster (Collinder 285)
- Van den Bergh-Hagen 47, open cluster, presumably Lacaille III.3
Globular clusters:
- NGC 104, globular cluster 47 Tucanae
- NGC 2419, outlying globular cluster in Lynx
- NGC 4833, southern globular in Musca, Lacaille I.4
- NGC 5139, globular cluster Omega Centauri
- NGC 6397, nearby globular cluster in Ara
- NGC 6712, globular cluster in Scutum, perhaps discovered by Le Gentil

Galaxies:

Spiral galaxies:
- NGC 253, bright galaxy in the Sculptor or South Galactic Polar Group
- NGC 891, edge-on spiral galaxy in Andromeda
- NGC 1055, SBb: galaxy in the M77 group
- NGC 2403, Sc galaxy in the M81 group
- NGC 2903, rather bright spiral galaxy in Leo
- NGC 3628, the third of the Leo Triplet (with M65 and M66)
- M109B = NGC 3953, barred spiral galaxy near M109, discovered by Pierre Méchain
- NGC 4565, large bright edge-on spiral in Coma
- NGC 4571, barred spiral in Virgo cluster, once possible candidate for M91
- NGC 4631, the Herring or Whale Galaxy
- NGC 4656, highly distorted spiral interacting with NGC 4631
- M51B = NGC 5195, companion of M51
- NGC 5907, in group with M102 candidate NGC 5866
- NGC 6946, the galaxy in which most supernovae occurred
- NGC 7331, conspicuous spiral galaxy in Pegasus
- NGC 7479, nice barred spiral galaxy in Pegasus
- Milky Way: Our Galaxy
Lenticular (S0) galaxies:
- NGC 3115, Spindle Galaxy in Sextans
Elliptical galaxies:
- Leo I: The Regulus Galaxy, a Dwarf Elliptical Galaxy in Local Group
- SagDEG: nearby Sagittarius Dwarf Elliptical Galaxy, discovered 1994, containing globular M54
- Canis Major Dwarf: Almost disrupted nearby galaxy
Irregular Galaxies:
- NGC 2976, faint companion of M81 and M82
- NGC 3077, companion of M81 and M82
- NGC 5128, peculiar and radio galaxy Centaurus A
- M51B = NGC 5195, companion of M51
- NGC 6822: Barnard's Galaxy, an irregular Local Group galaxy
- IC 10, an outlying irregular dwarf member of the Local Group.
- IC 5152, an irregular dwarf member of the Local Group.
- The Large Magellanic Cloud
- The Small Magellanic Cloud (also NGC 292)
- Wolf-Lundmark-Melotte (WLM), a remote Local Group galaxy

Others:

Objects in Other Galaxies:
- NGC 2070, the Tarantula Nebula in the Large Magellanic Cloud
- G1, the brightest globular in M31
- NGC 206, star cloud in M31
- NGC 595, bright nebula and cluster in M33
- NGC 604, huge bright nebula and cluster in M33
Groups and Clusters of Galaxies:
- The Maffei 1 Group of galaxies, which were probably once part of our Local Group
- Sculptor Group of Galaxies (also South Polar Group)
Other:
- Eta Carinae, one of the most massive and luminous, and spectacular stars

Look at the Messier objects sorted by object type

Hartmut Frommert
Christine Kronberg
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Last Modification: April 23, 2013