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Deep Space

Deep space objects are those that are out of our galaxy.

[Nebula | Galaxy | Cluster | Blackhole]
[Messier Catalog | NGC Catalog]

A object in space that is so massive, light cannot escape its magnetic field.
The two jets coming from the center are formed by electrons. They are propelled outward by the magnetic field at great speeds. Some even gain enough energy to become gamma rays. Astronomers can find these jets, which will lead them to the black hole.
To learn how black holes are formed, click here:
Stellar Evoultion

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Messier Catalog

"Andromeda Galaxy"
M31

"Barbell Nebula"
M76 (also Little Dumbbell Nebula, Butterfly Nebula, or Cork Nebula). Mike Frazier calles it "Apple Core Nebula".

"Beehive Cluster"
M44 (also Praesepe)

"Blackeye Galaxy"
M64, also sometimes called the "Sleeping Beauty Galaxy".

"Bode's Galaxy" or "Bode's Nebula"
M81 (Murdin/Allen/Malin 1979)

"Butterfly Cluster"
M6 (`Splendors of the Heavens', Phillips/Steaphenson 1923).
According to Jeff Bondono, also M93 is also sometimes called by this name.

"Butterfly Nebula"
M76 (also Little Dumbbell Nebula, Cork Nebula, or Barbell Nebula). Mike Frazier calles it "Apple Core Nebula".
"Cetus A"
M77
"Checkmark Nebula"
M17 (also Omega, Swan, Horseshoe, or Lobster Nebula)

"Cigar Galaxy"
M82. Brought to my attention by Tom Polakis.

"Cork Nebula"
M76 (also Little Dumbbell Nebula, Butterfly Nebula, or Barbell Nebula). Mike Frazier calles it "Apple Core Nebula".

"Crab Nebula"
M1 (Rosse 1844)

"Delle Caustiche"
M24. The Sagittarius Star Cloud. A Milky Way Patch containing the open cluster NGC 6603

"de Mairan's Nebula"
M43. Part of the Orion Nebula

"Diablo Nebula"
M27, the Dumbbell Nebula. Contributed by Jeff Bondono, also Sky Catalog 2000.

"Double-Headed Shot"
M27, the Dumbbell Nebula. Contributed by Jeff Bondono, also Sky Catalog 2000.

"Dragon Nebula"
Name for a part of the Lagoon Nebula M8 (Sky Catalog 2000).

"Dumbbell Nebula" M27. Jeff Bondono found that it is also called "Diablo Nebula" or "Double-Head Shot", J.R. Freeman heard "Apple Core Nebula".

"Dumbbell Nebula, Little"
M76 (also Cork, Butterfly, or Barbell Nebula). Mike Frazier calles it "Apple Core Nebula". The name "Little Dumbbell Nebula" is most common, e.g. Sky
Catalogue 2000
NB: This object seems to attract names like no other: It has also two NGC numbers: 650 and 651.

"Eagle Nebula"
IC 4703 associated with the star cluster M16 (also "Star Queen Nebula")

"Hercules Globular Cluster"
M13

"Horseshoe Nebula"
M17 (also Omega, Swan, Lobster, or Checkmark Nebula)

"Hourglass Nebula"
Brightest Part of M8, the Lagoon Nebula

"Lagoon Nebula"
M8. Its center contains "The Hourglass Nebula" (A.D. Thackeray 1956).

"Leo Triplet"
M65, M66 and NGC 3628 form this physical trio

"Little Dumbbell Nebula"
M76 (also Cork, Butterfly, or Barbell Nebula). Mike Frazier calles it "Apple Core Nebula". The name "Little Dumbbell Nebula" is most common, e.g. Sky
Catalogue 2000

"Lobster Nebula"
M17 (also Omega, Swan, Horseshoe, or Checkmark Nebula); thanks to Steve Mencinsky for this contribution, a common name for M17 on the Southern
hemisphere.

"Milky Way Patch"
M24 (also "Delle Caustiche"). Star cloud containing the open cluster NGC 6603

"Omega Nebula"
M17 (also Swan, Horseshoe, Lobster, or Checkmark Nebula)

"Orion Nebula"
M42. M43 is also a part of it.

"Owl Nebula"
M97

"Pinwheel Galaxy"
Two, or even three, galaxies (all in Messier's catalog) share this name:
M101. More common [Murdin/Allen/Malin 1979, Sky Catalogue 2000, RASC Observer's Handbook]

M33, the Triangulum Galaxy [Burnham, RASC]; take "Triangulum Pinwheel" for distinguishing
M99 [RASC]; take "Coma Pinwheel" or "Virgo Cluster Pinwheel" for distinguishing, if needed
The name is perhaps more common for M101 because it has no other name. The only major source having this name for M33 is Burnham.
"Pleiades"
M45 (also Subaru or the Seven Sisters)
"Praesepe"
M44 (also Beehive Cluster)

"Ptolemy's Cluster"
M7 (Ptolemy mentioned it 138 AD, hf)

"Question Mark" of Lord Rosse
M51 (also The Whirlpool Galaxy)

"Ring Nebula"
M57

"Sagittarius Star Cloud"
M24 (also "Delle Caustiche"). A Milky Way Patch containing open star cluster NGC 6603.
Satellite Galaxies of M31
M32, M110

"Seven Sisters"
M45 (also Subaru, the Pleiades)

"Sleeping Beauty Galaxy"
M64, also the Blackeye Galaxy.

"Smoking Gun"
Name for the active center of M87 (Virgo A). Nasa/STScI.

"Sombrero Galaxy"
M104

"Southern Pinwheel Galaxy"
M83
"Spindle Galaxy"
M102[?] = NGC 5866 (hf, Sky&Telescope 7/95 p. 51). Name shared with NGC 3115

"Star Queen Nebula"
IC 4703 associated with the star cluster M16 (also "Eagle Nebula")
"Subaru"
M45 (also the Pleiades or Seven Sisters)

"Sunflower galaxy"
M63

"Swan Nebula"
M17 (also Omega, Horseshoe, Lobster, or Checkmark Nebula)

"Trapezium Cluster"
Cluster of young stars in M42, the Orion Nebula

"Triangulum Galaxy"
M33 (also "Pinwheel", that shared with M101)

"Trifid Nebula"
M20

"Virgo A"
M87 in the center of the Virgo cluster. Its active center is called "The Smoking Gun"

"Whirlpool Galaxy"
M51 (Lord Rosse's "Question Mark")

"Wild Duck Cluster"
M11 (Smyth)

"Winnecke 4" (WNC4)
M40, the Double Star in Ursa Major

"WNC 4" (Winnecke 4)
M40, the Double Star in Ursa Major

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NGC Catalog

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