Common Names for Objects We Observe
Original source: http://seds.lpl.arizona.edu/messier/xtra/supp/d-names.html
Entries with an * have been added by Dave Jessie
 

Deep Sky

Double Stars

 

 

Object Name

NGC/IC M#

Notes

  30 Doradus N2070   Tarantula Nebula in LMC, also Looped Nebula, True Lovers' Knot
  47 Tucanae N104             
  Al Sufi's Cluster     19:25.4  +20:11  Collinder 399 open cluster, also Coathanger Cl., Brocchi's Cl.
  Ambartsumian's Knot N3561    
  Andromeda A N224 M31 The Andromeda Galaxy
  Andromeda Galaxy N224 M31 also radio source Andromeda A
  Andromeda I     00:45.7  +38:00  in Local Group
  Andromeda II     01:16.3  +33:25  in Local Group
  Andromeda III     00:35.3  +36:31  in Local Group
  Andromeda IV     00:42.5  +40:34  in Local Group (?)
  Andromeda V     01:10.3  +47:38  in Local Group
  Andromeda VI     23:51.7  +24:36  also Pegasus dSph, in Local Group
  Andromeda VII     03:27.8  +50:35  also Cassiopeia dSph, in Local Group
  Anon Platais     21:30.0  +48:59  Open Cluster with Cepheid V1726 Cyg (U II 2000.0)
  Ant Galaxy     10:56.9  +06:54  UGC 6046 SBcd: galaxy (U II 2000.0)
  Ant Nebula     16:17.2  -51:59  PK 331-1.1 bipolar nebula
  Antares Nebula     16:29.2  -26:27  Ced 132, IC 4606, near Antares, also Cloud Nebula
  Antennae Galaxies N4038-9   also Ring Tail Galaxies, VV 245
  Antlia Dwarf     10:04.1  -27:20  in Local Group
  Apple Core Nebula N6853 M27 also the Dumbbell Nebula
  Apple Core Nebula N650-1 M76 also Little Dumbbell, Cork, or Butterfly Nebula
  Aquarius Dwarf     20:46.9  -12:51  DDO 210, MCG -2-53-3, in Local Group
  Argo Dwarf     07:04.5  -58:27  nearby LSB dwarf galaxy
  Arp's Galaxy     11:19.6  +51:30
  Atom For Peace Galaxy N7252   Arp 226
  Auriga Salt-and-Pepper N2099 M37  
  BL Lacertae     22:02.7  +42:17
  BW Tauri     04:33.2  +05:21  UGC 3087, 3C 120
  Baade's Galaxies A & B     00:49.9  +42:35  MCG+07-02-018/19
  Barbell Nebula N650-1 M76 also Little Dumbbell, Butterfly, or Cork Nebula; Apple Core Nebula
  Barbon's Galaxy     23:37.7  +30:08  Markarian 328, Zwicky 497.042, CGCG 497-42
  Barnard's Galaxy  N6822    
  Barnard's Loop     05:35    -03:    Sharpless 2-276, H V.35 ?
  Baxendall's Nebula N7088   Baxendall's unphotographable Nebula
  Bear Paw (Claw) Galaxy N2537   Arp 6
  Beehive Cluster N2632 M44 also Praesepe
  Black Eye Galaxy N4826 M64 also "Sleeping Beauty Galaxy"
  Black Hole     18:15.6  -18:14  Barnard 92 dark nebula, in M24
  Blinking Planetary N6826    
  Blue Flash Nebula N6905   (Deep Sky List)
  Blue Planetary N3918    
  Blue Snowball N7662    
  Bode's Galaxies (Nebulae) N3031/4 M81/M82  
  Bode's Galaxy (Nebula) N3031 M81  
  Boomerang Nebula     12:44.8  -54:31  Bipolar Nebula
  Box N4169/73-5                            
  Box Nebula N6309    
  Brocchi's Cluster     19:25.4  +20:11  Collinder 399 open cluster, also Coathanger Cl., Al Sufi's Cl.
  Bubble Nebula N7635    
  Bug Nebula N6302    
  Burbidge Chain     00:47.5  -20:26  MCG-04-03-010..3 galaxies
  Burnham's Nebula     04:22.0  +19:32  T Tauri Nebula
  Butterfly Cluster N6405 M6  
  Butterfly Cluster N2447 M93  
  Butterfly Nebula N650-1 M76 also Little Dumbbell, Cork, or Barbell Nebula; Apple Core Nebula (Mike Frazier)
  Butterfly Nebula I2220    
  Butterfly Nebula     M2-9 bipolar nebula, also Siamese Squid Nebula, Twinjet Nebula
  Butterfly Nebula     17:05.6  -10:08  PK 10+18.2 planetary nebula
  BW Tauri     04:33.2  +05:21  UGC 3087, 3C 120. S0 Seyfert Galaxy
  CM Tauri     SN 1054, Crab supernova which generated M1, the Crab Nebula; Crab Pulsar
  California Nebula N1499    
  Campbell's Star     19:34.8  +30:31  central star HD 184738 (BD+30 3639) of planetary nebula PK 64-5.1
  Canali     12:35.7  -12:02  open cluster or asterism (Canali 1997, U II 2000.0)
  Capricorn Dwarf     21:46.5  -21:14  Palomar 12 Globular Cluster (former Local Group galaxy suspect)
  Carafe Galaxy, Cannon's     04:28.0  -47:54  near NGC 1595/98
  Carafe Group N1595/8   + Carafe Galaxy
  Carina Dwarf     06:41.6  -50:58  ESO 206-A20 in Local Group
  Cartwheel Galaxy     00:37.4  -33:44  MCG-06-02-022a
  Cassiopeia A     23:23.4  +58:50  3C 461. SNR and strongest radio source in sky
  Cassiopeia dSph     03:27.8  +50:35  also Andromeda VII, in Local Group
  Cassiopeia Salt-and-Pepper N7654 M52  
  Cat Eye Nebula N6543   also Cat's Eye Nebula
  Cat's Eye Nebula N6543   also Cat Eye Nebula
  Cat's Paw Nebula N6334   per Jerry Lodriguss, S&T 8/98
  Cave Nebula     22:56.8  +62:37  Sh2-155 Diffuse Nebula
  CBS Eye N3242   (Deep Sky List)
  Centaurus A N5128   Arp 153
  Centaurus Chain N4616/22/50/61   galaxy chain, also NGC 4603D, 4622A/B, 4650A (U II 2000.0)
  Cetus A N1068 M77  
  Checkmark Nebula N6618 M17 also Omega, Swan, Horseshoe, or Lobster Nebula
  Chi Persei N 884   Double Cluster with NGC 869 (h Persei)
  Christmas Tree Cluster N2264   associated with the Cone Nebula
  Cigar Galaxy N3034 M82 per Tom Polakis
  Circinus Galaxy     14:13.2  -65:20  Highly obscured spiral galaxy
  Cirrus Nebula N6960,92,95   Cygnus SNR, Cygnus Loop, Veil Nebula
  Cloud Nebula     16:29.2  -26:27  Antares Nebula, Ced 132
  Clown Nebula N2392   also Eskimo Nebula
  Clown Face Nebula N2392   also Eskimo Nebula
  Coalsack     12:53    -63     7-by-5 deg dark nebula near Alpha Crucis
  Coathanger Cluster     19:25.4  +20:11  Collinder 399 open cluster, also Brocchi's Cl., Al Sufi's Cl.
  Cocoon Galaxy N4490    
  Cocoon Nebula I5146    
  Coddington's Nebula I2574    
  Coma A     12:54.2  +27:38  3C 277.3, PCG 43882 active galaxy
  Coma Pinwheel Galaxy N4254 M99 (prop based on RASC)
  Coma Star Cluster     12:26    +26   Melotte 111 open cluster
  Cone Nebula (Conus N.) N2264   associated with the Christmas Tree Cluster
  Cooling Tower N6913 M29 per Jeff Bondono
  Copeland's Septet N3745-6/8/50-1/3-4  
  Cork Nebula N650-1 M76 also Little Dumbbell, Butterfly, or Barbell Nebula; Apple Core Nebula (Mike Frazier)
  Crab Nebula N1952 M1 (Rosse 1844)
  Crab Pulsar     NP0532, central star of the Crab Nebula M1
  Crescent Nebula N6445    
  Crescent Nebula N6888    
  Cygnus A     19:59.4  +40:43  MCG+07-41-003
  Cygnus Egg     21:02.3  +36:42  CRL 2688, AFGL 2688 planetary nebula; also Egg N.
  Cygnus Loop N6960,92,95   Cygnus SNR, Veil Nebula, Cirrus Nebula
  Cygnus X1 HD226868   First suspected black hole, also Cygnus X-1
  De Mairan's Nebula N1982 M43 Part of the Orion Nebula
  Delle Caustiche N6603 M24 (Secchi), also Sagittarius Star Cloud, Milky Way Patch
  Diablo Nebula N6853 M27 (Jeff Bondono, Sky Cat 2000), also the Dumbbell Nebula
  Double Cluster N869 N884   h+Chi Persei
  Double Double SAO 67315   also Epsilon Lyra: 18:44:23  +39°36’46”
  Double-Headed Shot N6853 M27 (Jeff Bondono, Sky Cat 2000), also the Dumbbell Nebula
  Draco Dwarf     17:20.2  +57:55  DDO 208, UGC 10822; in Local Group
  Dragon Nebula N5623 M8 Part of the Lagoon Nebula (Sky Cat. 2000)
  Dragonfly Cluster N 457   (Akkana Peck), also Phi Cassiopeiae Cluster, Owl Cluster, ET Cluster
  Duck Nebula N2359   (Deep Sky List)
  Dumbbell Nebula N6853 M27 also Diablo Nebula, Double-Head Shot, Apple Core Nebula
  Dumbbell Nebula, Little N650-1 M76 (Sky Catalogue 2000) also Cork, Butterfly, or Barbell Nebula; Apple Core Nebula (Mike Frazier)
  Eagle Nebula I4703 M16 also Star Queen Nebula; associated with cluster M16=NGC 6611
  Eagle Nebula I2177   also Seagull Nebula
  Egg Nebula     21:02.3  +36:42  CRL 2688, AFGL 2688, PK 80-6.1 planetary nebula; also Cygnus Egg
  Eight-burst Planetary N3132   also Southern Ring
  Einstein Cross     22:39.6  +03:21  G 2237+0305 gravitational lens
  Elephant Trunk  I1396   21:37.1  +57:29  Nebula in IC 1396 cluster
  Epsilon Orionis Nebula N1990    
  Eridanus Globular Cluster     04:24.8  -21:11  (Sky Catalogue 2000.0)
  Eskimo Nebula N2392   also Clown Nebula
  ET Cluster N 457   also Owl Cluster, Phi Cassiopeiae Cluster, Dragonfly Cluster
  Eta Carinae Nebula N3372    
  Exclamation Mark Galaxy     00:39.3  -43:06
  Eye Nebula N3242   also Ghost of Jupiter, CBS Eye
  Eyes N4435/8   in Virgo Cluster
  Fath 703 N5892    
  Filamentary Nebula N6960   part of Veil Nebula
  Fish on the platter nebula     19:59    +35     B144 dark nebula
  Fish mouth   M42 dark nebula in M42
  Flame Nebula N2024   also Orion B
  Flaming Star Nebula I 405    
  Footprint Nebula     19:36.6  +29:33  M1-92 bipolar reflection nebula
  Fornax A N1316   Arp 154
  Fornax Dwarf     02:39.9  -34:32  MCG-06-07-001; in Local Group
  Fourcade-Figuero     13:34.8  -45:33  MCG-07-28-004
  Frosty Leo     09:39.9  +11:59  (R. Jakiel) IRAS 09371+1212, a neat bi-polar nebula
  GR 8 (Gibson Reaves)     12:58.7  +14:13  DDO 155, UGC 8091; Footprint Galaxy, Imprint of Foot Galaxy; in Local Group
  Gamma Cassiopeiae Nebula I 59,63    
  Gamma Cygni Nebula I1318    
  Gamma Leonis Group N3185,87,90,95   (group of galaxies)
  Garland     10:04.2  +68:40  S of NGC 3077
  Gem Cluster N3293    
  Ghost of Jupiter N3242   also Eye Nebula
  Gulf of Mexico N7000   dark nebula in NGC 7000, the North America Nebula
  Gomez's Hamburger     18:09:13.4 -32:10:49 14.5 mag, < 5" bipolar nebula (Rich Jakiel)
  Grus Quartet N7552/82/90/99    
  Gum Nebula     08:30  -45     Gum 12. Also Vela SNR, 20x12 deg extended. Contains Vela pulsar (PSR 0833-45)
  h Persei N 869   Double Cluster with NGC 884 (Chi Persei)
  Hamburger Galaxy N5128   also Centaurus A
  Hardcastle's Galaxy     13:13.0  -32:41  MCG-05-31-039
  Heart-Shaped Cluster N2323 M50  
  Helix Galaxy N2685   Arp 336; also Pancake Galaxy
  Helix Nebula N7293    
  Hercules A     16:51.2  +04:59  3C 348, MCG+01-43-006
  Hercules Globular Cluster N6205 M13  
  Herring Galaxy (Nebula) N4631   (interstellarum No. 3); also Whale Galaxy
  Herschel's Ray N2736    
  Hind's Variable Nebula N1554/5    
  Hoag's Object     15:17.2  +21:35
  Hole in a Cluster N6811   (Scott Houston, from Uranometria)
  Holmberg I     09:40.5  +71:11  DDO 63, UGC 5139
  Holmberg II     08:19.3  +70:43  Arp 268, DDO 50, UGC 4305
  Holmberg III     09:14.6  +74:14  UGC 4841
  Holmberg IV     13:54.7  +53:54  DDO 185, UGC 8837
  Holmberg V     13:40.6  +54:20  UGC 8658
  Holmberg VI N1325a   03:24.9  -21:20
  Holmberg VII     12:34.7  +06:17  DDO 137, UGC 7739
  Holmberg VIII     13:13.3  +36:12  DDO 166, UGC 8303
  Holmberg IX     09:57.6  +69:03  DDO 66, UGC 5336
  Horologium Dwarf     03:59.2  -21:20  also Schuster's Spiral
  Horsehead Nebula I 434   05:40.9  -02:28  Barnard 33, in front of IC 434
  Horseshoe Nebula N6618 M17 also Omega, Swan, Lobster, or Checkmark Nebula
  Hourglass Nebula N6523 M8 brightest part of the Lagoon Nebula
  Hourglass Planetary Nebula     MyCn 18 (STScI PR 96-07)
  Hubble's Double Bubble     Hubble 5 PN (Bruce Balick)
  Hubble's Variable Nebula N2261    
  Hyades     04:27    +16 :   Melotte 25
  Hydra A     09:18.1  -12:06  3C 218, MCG-02-24-007, galaxy 14.8 m_v
  Imprint of Foot Galaxy     12:58.7  +14:13  GR-8, Footprint Galaxy, in Local Group
  Ink Spot     Barnard 86 dark nebula
  Integral Sign Galaxy     07:11.4  +71:50  UGC 3697
  Intergalactic Wanderer/Tramp N2419   globular cluster thought to be 300,000 ly away.  see: http://www.perseus.gr/Astro-DSO-NGC-2419.htm
  January Salt-and-Pepper N2099 M37 (Jeff Bondono and H. Frommert)
  Jewel Box N4755   also Kappa Crucis
  July Salt-and-Pepper N6705 M11 (Jeff Bondono and H. Frommert)
  Jupiter's Ghost N3242    
  Kappa Crucis Cluster N4755   also Jewel Box
  Keenan's System N5216/6a/8   Arp 104
  Kemble's Cascade N1502   Open cluster Mag 5.7
  Kepler's supernova/SNR     17h27m41s -21d27m11s (1950) aka 3C-358
  Keyhole Nebula N3372   Dark Nebula in the Eta Carinae Nebula
  Kidney Bean Galaxy N4774    
  Kite Cluster     01h40.0m +58d30m OC (asterism) in Cassiopeia
  Kowal's Object     19:29.9  -17:41
  Lace-work Nebula N6960   Filamentary Nebula, part of Veil Nebula
  Lagoon Nebula N6523 M8 contains the Hourglass Nebula
  Lambda Centauri Nebula I2944/48    
  Lambda Orionis Cluster     05:35.1  +09:56  Collinder 69
  Lambda Orionis Nebula     05:35    +10:    Sharpless 2-264, also North Orion Bubble (M. Covington)
  Large Magellanic Cloud, LMC     05:23.6  -69:45  "Nubecula Major"; in Local Group
  Leo I     10:08.5  +12:18  Regulus dwarf, DDO 74, UGC 5470, Harrington-Wilson #1; in Local Group
  Leo II, Leo B     11:13.4  +22:10  DDO 93, UGC 6253, Harrington-Wilson #2; in Local Group
  Leo III, Leo A     09:59.3  +30:45  DDO 69, UGC 5364; in Local Group
  Leo Triplet N3623/7/8

M65/M66/N3628

  Lindsay-Shapley Ring     06:42.8  -74:15  Graham A
  Little Dumbbell Nebula N 650-1 M76 also Cork, Butterfly, or Barbell Nebula; Apple Core Nebula (Mike Frazier)
  Little Gem N6445    
  Little Gem N6818   (Hartung, Uranometria)
  Little Ghost Nebula N6369   (Steve Gottlieb)
  LMC, Large Magellanic Cloud     05:23.6  -69:45  "Nubecula Major"; in Local Group
  Lobster Nebula N6618 M17 also Omega, Swan, Horseshoe, or Checkmark Nebula
  Looped Nebula N2070   Tarantula Nebula, 30 Doradus in LMC, also True Lovers' Knot
  Lord Rosse's Nebula N5194 M51 Whirlpool Galaxy
  Lost Galaxy N4535   (RASC Galaxy Names, Jim Shields, SAC db) in Virgo Cluster
  Lost Galaxy N4526   (RASC Finest NGC, Jeff Bondono, L.S. Copeland) in Virgo Cluster
  Lower's Nebula     06:08.9  +15:49  Sh2-261 (Arnaldo Arnal, Uranometria)
  Maffei I     02:36.4  +59:39  UGCA 34
  Maffei II     02:42.0  +59:37  UGCA 39
  Maia Nebula N1432 M45 in the Pleiades
  Malin 1     12:37.0  +14:20  low surface brightness galaxy behind Virgo Cluster
  Malin 2     low surface brightness galaxy
  Manger (Praesepe) N2632 M44 also Beehive Cluster
  Markarian's Chain N4374-4501 M84/M86/M88 + several fainter galaxies in Virgo Cluster
  Maya Nebula N1432 M45 in the Pleiades
  Mayall's Object     11:03.9  +40:50  Arp 148, MCG+07-23-019
  McLeish's Object N4535    
  McLeish's Object     20:09.7  -66:13  ESO 105-026
  Medusa Nebula     07:29.0  +13:15  PN Abell 21, PK 205+14.1
  Merope Nebula N1435 M45 in the Pleiades; also Tempel's Nebula
  Merope Nebula Part I 349 M45 part of Merope Nebula in the Pleiades
  Mexican Jumping Star N2362   Tau CMa cluster
  Mice N4676    
  Milky Way Patch N6603 M24 also "Delle Caustiche"
  Miniature Spiral N3928    
  Minkowski's Object     01:25.8  -01:21  Arp 133, NE of NGC 541, in Abell 194 Cluster of Galaxies
  Mirach's Ghost N 404   (Deep Sky Corner)
  Muscle Man Cluster     02:15.0  +59:16  Stock 2 (Deep Sky List)
  Music Man* N7510   also Xylophone Man*    OC in Cepheus 23:11:04  +60°34’18”
  Network Nebula N6992/5    
  Nick's Cluster* I 4756   OC in Serpens - 18:39 +05°27'  Diameter: 40 arcminutes.  Rich in stars with large brightness range.
'Discovered' by Nick Mihiylov on 8/9/2008
  North America Nebula N7000    
  North Orion Bubble     05:35    +10:    (M. Covington); Sharpless 2-264, also Lambda Orionis Nebula
  Northern Coalsack     20:40    +42:    dark nebula
  Nubecula Major     05:23.6  -69:45  Large Magellanic Cloud, LMC, in Local Group
  Nubecula Minor N 292   00:52.7  -72:50  Small Magellanic Cloud, SMC, in Local Group
  October Salt-and-Pepper N7654 M52 (Jeff Bondono and H. Frommert)
  Omega Centauri     N5139
  Omega Nebula N6618 M17 also Swan, Horseshoe, Lobster, or Checkmark Nebula
  Omicron Velorum Cluster I2391    
  Orion A N1976 M42 Orion Nebula
  Orion B N2024   also Flame Nebula
  Orion Nebula N1976 M42 (de Mairan's Nebula M43 is a part of it)
  Owl Cluster N 457   also Phi Cassiopeiae Cluster, Dragonfly Cluster, ET Cluster
  Owl Nebula N3587 M97  
  PacMan Nebula N 281   (Lars Helgeland, Jason Ware)
  Pancake Galaxy N2685   Arp 336; also Helix Galaxy
  Papillon I 708    
  Parrot's Head Nebula     18:04.3  -32:30  Barnard 87 dark nebula (named by Barnard)
  Pavo Globular N6752    
  Pegasus Dwarf     23:28.5  +14:44  DDO 216, UGC 12613; in Local Group
  Pegasus dSph     23:51.7  +24:36  also Andromeda VI, in Local Group
  Pelican Nebula I5067/70    
  Pencil N2736    
  Perseus A N1275/6    
  Perseus Double Cluster N869/N884   h+Chi Persei
  Phantom Streak N6741   (Deep Sky List)
  Phi Cassiopeiae Cluster N 457   also Owl Cluster, Dragonfly Cluster, ET Cluster
  Phoenix Dwarf Irregular G     01:51.1  -44:26
  Pickering's Triangular N. N6960   part of the Filamentary Nebula
  Pictor A     05:19.9  -45:47  MSH 05-43, galaxy 15.8 m_v
  Pinwheel Cluster N1960 M36  
  Pinwheel Galaxy N5457 M101 (Murdin/Allen/Malin 1979, Sky Catalogue 2000, RASC Observer's Handbook)
  Pinwheel Galaxy N 598 M33 (Burnham, RASC), also Triangulum Galaxy, prop: "Triangulum Pinwheel"
  Pinwheel Galaxy N4254 M99 (RASC) prop: "Coma Pinwheel" or "Virgo Cluster Pinwheel"
  Pipe Nebula     17:33    -26     Barnard 59, 56-7, 65; dark nebula
  Pipe Nebula     17:21.1  -26:47  LDN 1773, also Stem of the Pipe Nebula
  Pisces Cloud N 379/80/82-5   Arp 331
  Pisces Dwarf     00:03.8  +21:54  LGS 3; in Local Group
  Pleiades   M45 also Subaru or the Seven Sisters
  Polarissima Australis N2573    
  Polarissima Borealis N3172    
  Praesepe (Manger) N2632 M44 also Beehive Cluster
  Ptolemy's Cluster N6475 M7 (Ptolemy mentioned it 138 AD)
  Puppis A     08:24.1  -43:00  SNR, radio source
  Question Mark N5194 M51 (Lord Rosse), also Whirlpool Galaxy
  Red Rectangle     06:20.0  -10:38  AFGL 915, bipolar N near mag 8.8 SAO 151362 = HD 44179 (double)
  Red Spider Nebula N6537   (Bruce Balick)
  Reinmuth 80 N4517a   12:32.5  +00:23  UGC 7685
  Reticulum Dwarf     04:36.2  -58:50  Sersic 040.03
  Rho Ophiuchi Complex I4603-4   + dark nebulae; interstellar cloud
  Rho Ophiuchi Dark Cloud     16:38:   -24:06  dark lanes in Rho Oph complex
  Rho Ophiuchi Nebula I4604    
  Ring Galaxy     Peculiar ring galaxy in Volans (National Audobon Society Pocket Guide p 70)
  Ring Nebula N6720 M57  
  Ring Tail Galaxies N4038-9   also Antennae Galaxies
  Rosette Nebula N2237-9/46    
  Rosse's Galaxy N5194 M51 also Whirlpool Galaxy, Lord Rosse's Question Mark
  Running Chicken Nebula I2944/8   Vehrenberg's Atlas of Deep-Sky Splendors (contributed by Michael Ferrio)
  S Nebula     17:23.5  -23:38  Barnard 72 dark nebula; also Snake Nebula
  SagDEG     18:55    -30..31  Sagittarius Dwarf Elliptical Galaxy; in Local Group
  SagDIG     19:30.0  -17:41  Sagittarius Dwarf Irregular Galaxy; in Local Group
  Sagittarius A     17:45.7  -29:00  Milky Way Center
  Sagittarius Dwarf     19:30.0  -17:41  SagDIG; in Local Group
  Sagittarius Star Cloud N6603 M24 also "Delle Caustiche", Milky Way Patch
  Sailboat Cluster N 225   (Rod Pommier in an article in Astronomy)
  Salt-and-Pepper Clusters   M11,M37,M52 (Jeff Bondono and H. Frommert)
  Saturn Nebula N7009    
  Schuster's Spiral     03:59.2  -21:20  also Horologium Dwarf
  Sculptor Dwarf     01:00.2  -33:42  MCG-06-03-015; in Local Group
  Sculptor Dwarf Irregular     00:08.1  -34:34  SDIG, in the South Polar (NGC 253) group
  Sculptor Galaxy N 253   also Silver Coin Galaxy
  Scutum Salt-and-Pepper N6705 M11 (H. Frommert and Jeff Bondono)
  SDIG     00:08.1  -34:34  Sculptor Dwarf Irregular, in the South Polar (NGC 253) group
  Seagull Nebula I2177 M16 (R. Jakiel) also Eagle Nebula
  Seashell Galaxy     13:47.4  -30:23  Companion to NGC 5291
  Serpens Dwarf     15:16.1  -00:08  Palomar 5, UGC 9792
  Seven Sisters   M45 also Subaru, the Pleiades
  Sextans A     10:11.0  -04:41  DDO 75, UGCA 205; in Local Group
  Sextans B     10:00.0  +05:19  DDO 70, UGC 5373
  Sextans C     10:05.6  +00:04  UGC 5439, Palomar 3
  Seyfert's Sextet N6027/27a-e    
  Shapley-Ames 1     01:05.1  -06:13
  Shapley-Ames 2 N4507    
  Shapley-Ames 3     12:49.4  -10:07  MCG-02-33-015
  Shapley-Ames 4     12:55.2  +00:07  UGC 8041
  Shapley-Ames 5     20:24.0  -44:00  MCG-07-42-001
  Shapley-Ames 6     21:23.2  +45:46
  Siamese Squid Nebula     M2-9 bipolar nebula, also Twinjet Nebula, Butterfly Nebula
  Siamese Twins N4567-8   in Virgo Cluster
  Silver Coin Galaxy N 253   also Sculptor Galaxy
  Simeis 147     05:39.1  +28:00  Sh2-240 (Uranometria)
  Sleeping Beauty Galaxy N4826 M64 also the Blackeye Galaxy
  Small Cluster Nebula N7129   (RASC)
  Small Magellanic Cloud, SMC N 292   00:52.7 -72:50  "Nubecula Minor"; in Local Group
  Smoking Gun N4486 M87 (Nasa/STScI) the active center of M87
  Snake Nebula     17:23.5  -23:38  Barnard 72 dark nebula; also S Nebula
  Snickers     06:28  +15  Possible nearby dwarf galaxy, discovered in radio (ApJL 201, L103 (1975))
  Sombrero Galaxy N4594 M104  
  Southern Integral Sign I5173    
  Southern Pinwheel Galaxy N5236 M83  
  Southern Pleiades I2602   Theta Carinae
  Southern Ring Galaxy     06:44.4  -74:11  ESO 34-IG 11 (Lautsen e.a.)
  Southern Ring Nebula N3132   (John Caldwell's list) also Eight-burst Planetary
  Spider     10:42.6  +34:27  DDO 84, UGC 5829, VV 794
  Spindle N2686    
  Spindle Galaxy N3115    
  Spindle Galaxy N5866 M102 ?  
  Spiral Cluster N1039 M34  
  Splinter Galaxy N5907   Deep-Sky Wonders column (contributed by Michael Ferrio)
  Spring Albireo SAO 100160   5th mag in Coma Berenices  12:35:08 +18°22'38" (Ron Kalinoski)
  Star Queen Nebula I4703 M16 also Eagle Nebula, associated with the star cluster M16=NGC 6611
  Starfish Cluster N1922 M38  
  Stargate Cluster* SAO 157379   STF1659  OC in Corvus, six stars forming a nested set of equilateral triangles 12:35:59  12°03'09"
  Stem of the Pipe Nebula     17:21.1  -26:47  LDN 1773, also Pipe Nebula
  Stephan's Quintet N7317-20   Arp 319
  Stingray Nebula     Hen-1357 young planetary nebula
  Struve's Lost Nebula N1554    
  Subaru   M45 also the Pleiades, Seven Sisters
  Sunflower galaxy N5055 M63  
  Sunflower Nebula N7293   (Deep Sky List), also Helix N
  Superwind-Galaxy N4666   (S. Kohle/T. Credner)
  Swan Nebula N6618 M17 also Omega, Horseshoe, Lobster, or Checkmark Nebula
  Table of Scorpius N6231   (Deep Sky List)
  Taffy Galaxies     00:01.6  +23 29  UGC 12914-5 interacting galaxy pair (Rich Jakiel)
  Tank tracks N2024   (Bill Arnett), = Orion B
  Tarantula Nebula N2070   30 Doradus in LMC, also Looped Nebula, True Lovers' Knot
  Tau CMa Cluster N2362   (Bill Arnett), = Mexican Jumping Star
  Taurus A N1952 M1 Crab Nebula
  Tempel's Nebula N1435 M45 Merope Nebula in the Pleiades
  Thackeray's Globules I2948   Bok globules in diffuse nebula
  Thor's Helmet N2359   (Bill Arnett)
  Theta Carinae I2602   Southern Pleiades
  Thumbprint Nebula     12:42.9  -78:16  "bright dark nebula" (Sky Cat 2000 has wrong Dec sign ! - Kenneth Drake)
  Toadstool Galaxies     ESO B 138+IG 29/30 peculiar galaxies in Ara
  Toby Jug Nebula I2220    
  Tom Thumb Cluster N6451   (Deep Sky List)
  Trapezium Cluster N1976 M42 Cluster of young stars in the Orion Nebula
  Triangulum Galaxy N 598 M33 also Pinwheel, Triangulum Pinwheel
  Triangulum Pinwheel Galaxy N 598 M33 also Triangulum Galaxy
  Trifid Nebula N6514 M20  
  True Lovers' Knot N2070   (Mark A. Chantrand III) Tarantula Nebula, 30 Doradus in LMC, also Looped Nebula
  Tuft in the Tail of the Dog     07:23.9 -32:12  Cr 140 (in CMa)
  Twinjet Nebula     M2-9 bipolar nebula, also Siamese Squid Nebula, Butterfly Nebula
  Tycho's Supernova/SNR     00 25.3  +64 08  3C 10 (SN 1572)
  Ursa Major A N3034 M82  
  Ursa Major Moving Cluster     Closest open cluster (70 ly), most stars of Big Dipper, and others
  Ursa Minor Dwarf     15:08.8  +67:12  DDO 199, UGC 9749; in Local Group
  V Man Cluster     Stock 2 (Deep Sky List)
  Veil Nebula N6960,92,95   Cygnus SNR, Cygnus Loop, Cirrus Nebula
  Vela SNR     8:30  -45  Gum 12, the Gum Nebula. 20x12 deg extended. Contains Vela pulsar (PSR 0833-45)
  Virgo A N4486 M87 Active center: "The Smoking Gun", in Virgo Cluster
  Virgo Cluster Pinwheel Gal N4254 M99 (prop based on RASC)
  War and Peace Nebula N6357   (MSX team)
  Whale Galaxy N4631   (Thompson & Bryan Supernova Search Charts series); also Herring Galaxy
  Whirlpool Galaxy N5194 M51 also "Question Mark" (Lord Rosse)
  White Eyed Pea I4593   (Deep Sky List)
  Wild Duck Cluster N6705 M11 (Smyth)
  Wild's Triplett     11:46.8  -03:49  Arp 248, MCG-01-30-032..4
  Winnecke 4 (WNC4)   M40  
  Winter Albireo SAO 173349   HD 56577  HR 2764  PPM 252026 sep 26.7"
  Witch Head Nebula I2118    
  WNC 4 (Winnecke 4)   M40  
  Wolf-Lundmark-Melotte, WLM     00:02.0  -15:28  DDO 221; in Local Group
  X-mas Tree Cluster N2264    
  Xylophone Man* N7510   also Music Man*    OC in Cepheus 23:11:04  +60°34’18”
  Zwicky #2     11:58.4  +38:03  DDO 105, UGC 6955
  Zwicky's Triplet     16:49.5  +45:30  Arp 103, CGCG 252-003 near UGC 10586
         
  Favorite Double Stars & other star formations*:
 
  Albireo*
 
The 'Cub Scout' star.  Beautiful 3.7 mag blue and gold double in Cygnus: 19:30:44 +27°57'29"
In the middle of the Summer Triangle.  Distance: 386 light-years.  Distance between the pair: 1/2 trillion miles = 26 light-days.
Orbital period: approx 100,000 years.  Separation: 34 arcseconds.
SAO 87301
 
  Alya* Beautiful 4.6 mag equal-brightness double in Serpens: 18:56:14 +4°12'19". Distance: 132 light-years.
Separation: 22 arcseconds.
SAO 124068
 
  Double Double* aka Epsilon Lyrae.  Pair of close doubles in Lyra: 18:44:23  +39°36’46”  All stars colorless.  Distance: approx 160 light-years.
Separation: Eps1 to Eps2............. 3.5 arcminutes  (between the 5.3 mag & 6.1 mag pairs)
                     Eps1a to Eps1b....... 2.5 arcseconds (6.1 mag pair)
                     Eps2a to Eps2b....... 2.4 arcseconds (5.3 mag pair)
SAO 67315
 
  Polaris* Commonly called the "Pole Star".  Beautiful mag 1.973 double in Ursa Minor: 2:31:55 +89°15'51"  Distance: 431 light-years.
Separation: 18 arcseconds.  Companion is 8.2 mag blue star.  Brightness & color difference makes this pair challenging at times.
SAO 308
 
  Spring Albireo* 5th mag star in Coma Berenices 9.9° NW of Vindemiatrix:  12:35:08 +18°22'38"
Blue & gold double in Coma Berenesis resembling Albireo in Cygnus.  Separated by 20.1 arcsecs.
“Discovered” by ACA-member Ron Kalinoski at Camp Butler scout event in April 2007
SAO 100160
 
  Stargate Cluster* OC in Corvus 1.2° WSW of M104.  Also known as STF 1659: 12:35:33  -12°01'16"
Group of 6 stars that form a nested set of equilateral triangles. “Discovered” by ACA-member John Shulan.
SAO 157379  (catalog# of brightest member)
 
  Winter Albireo* 4.8 mag star aka ‘145 Canis Major’    7:16:37  -23°18’56”
Blue & gold double in Canis Major resembling Albireo in Cygnus.  Separated by 26.8 arcsecs.
SAO 173349
 
  SAO 69252* 6.7 mag star in Cygnus 5.6° SW of Sadr: 20:00:44  +36°35’24”
Quadruple system! Yellow, red, blue, purple. A real beauty.
Forms a tall pyramid shape with the yellow on top. Medium wide.
 
  SAO 69258* 8.2 mag star in Cygnus 4.9° WSW of Sadr:  20:00:59  +37°41’57”
3 doubles in one wide field (32mm plossl). yellow-grey; red-blue; red-blue.
 
  SAO 100337 (Struve 1689)* 7th mag star in Virgo 1.7° WNW of Vindemiatrix: 12:55:30  +11°29’47”
Fairly wide, beautiful deep gold and blue double.  From an old "star-hop" article by Alan MacRobert.
 
  SAO 157111* 7th mag star in Corvus 7.5° W of M104: 12:09:28  -11°51’26”
Fairly tight triple, yellow, red, blue. Forms an equilateral triangle. Very pretty.
The first one I encountered when I started just going down the page in Sky Catalog 2000 V.1!
 

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