QuickLinks: 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99
Page last updated Apr 27, 2011
WORKING: Add positions/physical data (per Steinicke)
WORKING: Check existing pix for size, quality
IC 50 (= PGC 2698)
Discovered (Sep 27, 1892) by Stephane Javelle
A 14th-magnitude elliptical galaxy (type E0?) in Cetus (RA 00 46 06, Dec -09 30 11)
Per Dreyer, IC 50 (= Javelle 32, 1860 RA 00 39 03, NPD 100 15.9) is "faint, equivalent to nebulous 13th-magnitude star". The position precesses to within 0.3 arcmin of the correct one, so the identification is certain. Based on recessional velocity of 6120 km/sec, about 275 million light years away. Given that and apparent size of 0.85 by 0.75 arcmin, about 70 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 50 Below, a 12 arcmin wide region centered on the galaxy |

IC 51 (= PGC 2710)
Discovered (Aug 30, 1892) by Stephane Javelle
A 13th-magnitude lenticular galaxy (type S0 pec?) in Cetus (RA 00 46 24, Dec -13 26 29)
Per Dreyer, IC 51 (= Javelle 33, 1860 RA 00 39 22, NPD 104 12.3) is "pretty bright, small, brighter middle, mottled but not resolved". The position precesses to within 0.2 arcmin of the correct one, so the identification is certain. Based on recessional velocity of 1720 km/sec, about 75 million light years away. Given that and apparent size of 1.3 by 1.2 arcmin, about 30 thousand light years across. |
Above, a 1.5 arcmin wide closeup of IC 51 Below, a 12 arcmin wide region centered on the galaxy |

IC 52 (= PGC 2834)
Discovered (Aug 19, 1892) by Stephane Javelle
A 15th-magnitude spiral galaxy (type Sdm) in Pisces (RA 00 48 24, Dec +04 05 31)
Per Dreyer, IC 52 (= Javelle 34, 1860 RA 00 41 09, NPD 86 40.8) is "very faint, very small, round, gradually very slightly brighter middle". The position precesses to 0.7 arcmin southwest of the correct position, close enough to be certain of the identification. Based on recessional velocity of 1960 km/sec, about 90 million light years away. Given that and apparent size of 1.0 by 0.4 arcmin, about 25 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 52 Below, a 12 arcmin wide region centered on the galaxy |

IC 53 (= PGC 2951)
Discovered (Sep 25, 1890) by Lewis Swift
A 14th-magnitude lenticular galaxy (type S0?) in Pisces (RA 00 50 41, Dec +10 36 03)
Per Dreyer, IC 53 (= Swift list X (#3), 1860 RA 00 43 11, NPD 80 08.6) is "most extremely faint, pretty small, round, others suspected". The position precesses to 13 sec west and an arcmin north of the correct position, but Swift's positions were often "off", there is nothing comparable in the region, and there is no apparent concern about the identification, so it is presumably correct. Based on recessional velocity of 11770 km/sec, about 525 million light years away. Given that and apparent size of 1.0 by 0.8 arcmin, about 170 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 53 Below, a 12 arcmin wide region centered on the galaxy; the "+" to the right represents Swift's position |

IC 54
Recorded (Feb 13, 1890) by Rudolf Spitaler
A close double star (each 12th-magnitude) in Cetus (RA 00 50 47, Dec -02 17 19)
Per Dreyer, IC 54 (= Spitaler 2993, 1860 RA 00 43 38, NPD 93 03.3) is "nebula or star cluster, 2 arcmin across, brighter middle" (Steinicke lists as Spitaler #1). The position precesses to the double star, and there are no bright nebulae in the region (the image below is a 12 arcmin region centered on the double), so the identification seems certain. |

IC 55 (= PGC 3025)
Discovered (Nov 10, 1892) by Stephane Javelle
A 14th-magnitude spiral galaxy (type S?) in Pisces (RA 00 51 42, Dec +07 43 09)
Per Dreyer, IC 55 (= Javelle 512, 1860 RA 00 44 27, NPD 83 02.6) is "faint, very small, diffuse, 13th-magnitude star close". The position precesses to exactly the correct position, and there is a 14th-magnitude star close by, so the identification is certain. Based on recessional velocity of 5225 km/sec, about 235 million light years away. Given that and apparent size of 0.75 by 0.35 arcmin, about 50 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 55 Below, a 12 arcmin wide region centered on the galaxy |

IC 56 (= PGC 3014)
Discovered (Nov 2, 1891) by Stephane Javelle
A 14th-magnitude spiral galaxy (type SAB(r)cd) in Cetus (RA 00 51 30, Dec -12 50 40)
Per Dreyer, IC 56 (= Javelle 35, 1860 RA 00 44 29, NPD 103 36.1) is "very faint, small, slightly brighter middle". The position precesses to within 0.3 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 6085 km/sec, about 270 million light years away. Given that and apparent size of 0.8 by 0.8 arcmin, about 65 light years across. IC 56 is sometimes "associated" with PGC 3035, or "IC 56A". But aside from being discovered separately, they are not particularly close (in the sky), and are at very different distances, so there is no connection between them. |
Above, a 1 arcmin wide closeup of IC 56 Below, a 12 arcmin wide region centered on the galaxy; PGC 3035 is shown at upper left |

IC 57 (= PGC 3229)
Discovered (Dec 2, 1893) by Stephane Javelle
A 15th-magnitude lenticular galaxy (type S0?) in Pisces (RA 00 54 48, Dec +11 50 30)
Per Dreyer, IC 57 (= Javelle 513, 1860 RA 00 47 31, NPD 78 55.4) is "faint, very small, round, very slightly brighter middle, faint star close". The position precesses to 0.6 arcmin southeast of the correct position, within the outer regions of the galaxy, and there is a 16th-magnitude star just to the southwest, so the identification is certain. Based on recessional velocity of 11425 km/sec, about 500 million light years away. Given that and its apparent size of 1.0 by 1.0 arcmin, about 150 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 57 Below, a 12 arcmin wide region centered on the galaxy |

IC 58 (= PGC 3257)
Discovered (Aug 23, 1892) by Stephane Javelle
A 14th-magnitude lenticular galaxy (type S0/a?) in Cetus (RA 00 55 02, Dec -13 40 39)
Per Dreyer, IC 58 (= Javelle 36, 1860 RA 00 48 02, NPD 104 26.5) is "faint, very small, round, mottled but not resolved". The position precesses to within 0.3 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 6290 km/sec, about 280 million light years away. Given that and apparent size of 0.6 by 0.3 arcmin, about 50 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 58 Below, a 12 arcmin wide region centered on the galaxy |

IC 59 = γ Cassiopeiae Nebula
Discovered (Jan 17, 1890) by Isaac Roberts
A reflection nebula in Cassiopeia (RA 00 57 29, Dec +61 08 37)
Per Dreyer, IC 59 (= Wolf 3214 and Barnard, 1860 RA 00 49 00, NPD 29 40) is "pretty faint, extremely large, a remarkable object, northeast of γ Cassiop". The position precesses to 3 arcmin south of usually stated current position, but still within the southern edge of the extended nebulosity which is identified as IC 59, so the identification seems certain. The nebula glows primarily by light scattered from nearby γ Cassiopeiae, so it is bluish, while the rest of the surrounding nebulosity is either dark due to obscuring dust, or reddish due to hydrogen emissions excited by the star. The clouds of gas and dust in the region (which include IC 63) are being heated and blown away by the star, and will eventually disperse into unobservably faint and rarified features. γ Cas is a 15 solar-mass eruptive variable, about 70 thousand times brighter than the Sun, which is rotating so fast that it has a substantial equatorial bulge, and has developed a "decretion" disk of material thrown off by its rapid rotation. It is probably nearing the end of its ten to fifteen million year lifespan. The star and associated nebulosity are about 600 light years away. At that distance, the one-degree view of the region spans about 10 light years. |
Above, a 6 arcmin wide region showing the reflection nebula, IC 59 Below, a 1 degree wide region showing the region near IC 59 and 63 |

IC 60 (= PGC 3324)
Discovered (Aug 30, 1892) by Stephane Javelle
A 15th-magnitude spiral galaxy (type S?) in Cetus (RA 00 56 04, Dec -13 21 27)
Per Dreyer, IC 60 (= Javelle 37, 1860 RA 00 49 05, NPD 104 07.7) is "faint, very small, round, small nucleus". The position precesses to 0.7 arcmin south of the correct position, but there is nothing else close by, so the identification is certain. Based on recessional velocity of 16805 km/sec, about 750 million light years away. Given that and apparent size of 0.6 by 0.4 arcmin, about 130 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 60 Below, a 12 arcmin wide region centered on the galaxy |

IC 61 (= PGC 3408)
Discovered (Nov 10, 1892) by Stephane Javelle
A 14th-magnitude galaxy (type C?) in Pisces (RA 00 57 07, Dec +07 30 26)
Per Dreyer, IC 61 (= Javelle 514, 1860 RA 00 49 50, NPD 83 15.4) is "pretty faint, very small, round, very slightly brighter middle". The position precesses to within 0.3 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 11230 km/sec, about 500 million light years away. Given that and apparent size of 1.3 by 1.2 arcmin, about 190 thousand light years across. |
Above, a 1.2 arcmin wide closeup of IC 61 Below, a 12 arcmin wide region centered on the galaxy |

IC 62 (= PGC 3507)
Discovered (Dec 2, 1893) by Stephane Javelle
A 14th-magnitude spiral galaxy (type S?) in Pisces (RA 00 58 44, Dec +11 48 30)
Per Dreyer, IC 62 (= Javelle 515, 1860 RA 00 51 24, NPD 78 57.0) is "very faint, pretty large, diffuse". The position precesses to within 0.2 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 11590 km/sec, about 520 million light years away. Given that and apparent size of 1.0 by 0.7 arcmin, about 150 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 62 Below, a 12 arcmin wide region centered on the galaxy |

IC 63 = γ Cassiopeiae Nebula
Discovered (Jan 17, 1890) by Isaac Roberts
An emission nebula in Cassiopeia (RA 00 59 29, Dec +60 54 40)
Per Dreyer, IC 63 (= Barnard and Wolf 3214, 1860 RA 00 51 50, NPD 29 55) is "pretty faint, extremely large, a remarkable object, connected with northwestern one", the northwestern one being IC 59, which see for a detailed discussion of the region. As for IC 59, the position is several arcmin to the south of the currently used position (suggesting a consistent measurement error), near the southeastern edge of the extended nebula. For such faint, extended objects, deciding where to put the "center" is difficult; so despite the positional error, there is no doubt that some part of the nebula was the object recorded. |
Above, a 12 arcmin wide region showing the emission nebula, IC 63 Below, a 1 degree wide view showing the region near IC 59 and 63 |

IC 64 (= PGC 3550)
Discovered (Dec 5, 1893) by Stephane Javelle
A 14th-magnitude lenticular galaxy (type E/S0?) in Pisces (RA 00 59 24, Dec +27 03 34)
Per Dreyer, IC 64 (= Javelle 516, 1860 RA 00 51 51, NPD 63 42.2) is "faint, small, round, gradually much brighter middle". The position precesses to within 0.3 arcmin of the correct position, so the identification is certain. Possibly a Seyfert galaxy (type Sy?). Based on recessional velocity of 13770 km/sec, about 615 million light years away. Given that and apparent size of 1.3 by 1.1 arcmin, about 230 thousand light years across. |
Above, a 1.5 arcmin wide closeup of IC 64 Below, a 12 arcmin wide region centered on the galaxy |

IC 65 (= PGC 3635)
Discovered (Sep 25, 1890) by Lewis Swift
A 13th-magnitude barred spiral galaxy (type SAB(s)bc) in Andromeda (RA 01 00 55, Dec +47 40 54)
Per Dreyer, IC 65 (= Swift list X (#4), 1860 RA 00 52 53, NPD 43 04.2) is "extremely faint, pretty large, much extended, bright stars to east and south". The position precesses to within 0.4 arcmin of the correct position, and the nearby stars agree with the description, so the identification is certain. Based on recessional velocity of 2615 km/sec, about 115 million light years away, in good agreement with redshift-independent distance estimates of 75 to 120 million light years. Given that and apparent size of 3.9 by 1.1 arcmin, about 130 thousand light years across. |
Above, a 4 arcmin wide closeup of IC 65 Below, a 12 arcmin wide region centered on the galaxy |

IC 66 (= PGC 3606)
Discovered (Nov 12, 1890) by Guillaume Bigourdan
A 14th-magnitude spiral galaxy (type Sa) in Pisces (RA 01 00 32, Dec +30 47 48)
Per Dreyer, IC 66 (= Bigourdan 108, 1860 RA 00 52 56, NPD 59 58) is "very faint, very small, irregular". The position precesses to within 0.5 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 4825 km/sec, about 215 million light years away, in good agreement with redshift-independent distance estimates of 200 to 285 million light years. Given that and apparent size of 1.0 by 0.5 arcmin, about 65 thousand light years across. |
Above, a 1.5 arcmin wide closeup of IC 66 Below, a 12 arcmin wide region centered on the galaxy |

IC 67
Recorded (Nov 21, 1889) by Guillaume Bigourdan
A "lost" or nonexistent object in Cetus (RA 01 00 18, Dec -06 54 39)
Nothing exists at the recorded position
Per Dreyer, IC 67 (= Bigourdan 109, 1860 RA 00 53 14, NPD 97 40) is "very faint, suspected", which precesses to the listed current position. There is a possibility of an error in Bigourdan's position, but odds are that the object never existed. Per Corwin, Bigourdan recorded this and 68 on the same night. In December 1898 he observed the area again, and did not see IC 68, but confirmed the existence of IC 67. However, a review of the region the following night failed to reveal either object. Corwin thinks that knowing he was in a region full of faint nebulae, Bigourdan strained too hard to see them, and as a result, "saw" things that did not exist. The image below is a 4 arcmin wide region centered on the supposed position; the brighter stars in the region are 18th magnitude objects Bigourdan couldn't possibly have seen. |

IC 68
Recorded (Nov 21, 1889) by Guillaume Bigourdan
A "lost" or nonexistent object in Cetus (RA 01 00 22, Dec -06 56 39)
Nothing exists at the recorded position
Per Dreyer, IC 68 (= Bigourdan 110, 1860 RA 00 53 18, NPD 97 42) is "very faint, suspected", which precesses to the current listed position. In the same empty area as the nonexistent 67, and like it, almost certainly nonexistent (see Corwin's comments for IC 67). The image below is a 4 arcmin wide region centered on the supposed position; the brighter stars in the region are 18th magnitude objects Bigourdan couldn't possibly have seen. |

IC 69 (= PGC 3666 = PGC 1929122)
Discovered (Nov 8, 1866) by Truman Safford
A 14th-magnitude spiral galaxy (type Sbc?) in Pisces (RA 01 01 24, Dec +31 02 28)
Per Dreyer, IC 69 (= Safford 66, 1860 RA 00 53 48, NPD 59 40.9) is "faint, irregular figure, slightly brighter middle". The position precesses to 2 arcmin north northeast of the correct position, but there are no other nebulosities in the area, so despite the poor position, the identification seems certain. Based on recessional velocity of 5015 km/sec, about 225 million light years away. Given that and apparent size of 0.9 by 0.9 arcmin, about 60 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 69 Below, a 12 arcmin wide region centered on the galaxy; the "+" shows Safford's measured position |

IC 70 (= PGC 173286)
Discovered (Nov 7, 1891) by Stephane Javelle
A 16th-magnitude spiral galaxy (type S?) in Cetus (RA 01 01 04, Dec +00 03 03)
Per Dreyer, IC 70 (= Javelle 38, 1860 RA 00 53 54, NPD 90 42.4) is "very faint, very small, slightly brighter middle". The position precesses to within 0.1 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 19005 km/sec, about 850 million light years away. Given that and apparent size of 0.4 by 0.25 arcmin, about 95 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 70 Below, a 12 arcmin wide region centered on the galaxy |

IC 71 (not = NGC 347)
Recorded (Nov 21, 1889) by Guillaume Bigourdan
A nonexistent object or (possibly) a 14th-magnitude star in Cetus (RA 01 01 19, Dec -06 46 02)
Per Dreyer, IC 71 (= Bigourdan 111, 1860 RA 00 54 14, NPD 97 32) is "very faint, suspected". The position precesses to 0.7 arcmin south of the star tentatively identified as Bigourdan's object. Per Corwin, Bigourdan recorded this and 72 on the same night. In December 1898 he observed the area again, and found only a star at essentially the same position as his previous observation of IC 71. On this basis, Corwin identifies that star (whose position is listed above) as likely to be IC 71; however, Steinicke and Thomson consider the presence of a star in the general vicinity merely coincidental, and list the object as "Not Found". Note: HyperLeda identifies IC 71 as NGC 347, but Thomson points out that Bigourdan separately observed NGC 347 on the same night, so it cannot be the same object. The image below shows a 12 arcmin wide region centered on Bigourdan's position for IC 71 (marked by a "+" sign), and the star suggested by Corwin as being the object. |

IC 72
Recorded (Nov 21, 1889) by Guillaume Bigourdan
A nonexistent object or (perhaps) a 15th-magnitude star in Cetus (RA 01 01 35, Dec -06 46 41)
Per Dreyer, IC 72 (= Bigourdan 112, 1860 RA 00 54 28, NPD 97 31) is a "nebula; 7th-magnitude star 2 arcmin to southeast". The position precesses to 2 arcmin north northwest of 7th-magnitude HD 6031, in rough agreement with Bigourdan's note, but there is nothing at the specified location. Per Corwin, Bigourdan recorded this and IC 71 on the same night as IC 68 and 67 (all of which are nonexistent or stellar). Nine years later he observed the area again, and recorded "object only suspected" without trying to measure its position. Corwin makes a tentative identification of IC 72 as the star whose position is listed above, but as can be seen in the 6 arcmin wide image below (centered on the "+" sign marking Bigourdan's position), the star has the wrong distance and direction relative to HD 6031 (being just over 1 arcmin to the north, instead of 2 arcmin to the northwest, as recorded by Bigourdan). As for Steinicke and Thomson, both state "Not Found"; so the general consensus is that the object never existed. |

IC 73 (= PGC 3842)
Discovered (Aug 20, 1892) by Stephane Javelle
A 15th-magnitude spiral galaxy (type S pec?) in Pisces (RA 01 04 53, Dec +04 46 02)
Per Dreyer, IC 73 (= Javelle 39, 1860 RA 00 57 40, NPD 85 58.7) is "very faint, pretty large, diffuse". The position precesses to within 0.5 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 6275 km/sec, about 280 million light years away. Given that and apparent size of 0.6 by 0.5 arcmin, about 50 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 73 Below, a 12 arcmin wide region centered on the galaxy |

IC 74 (= PGC 3897)
Discovered (Aug 19, 1892) by Stephane Javelle
A 15th-magnitude elliptical galaxy (type E3?) in Pisces (RA 01 05 56, Dec +04 05 27)
Per Dreyer, IC 74 (= Javelle 40, 1860 RA 00 58 42, NPD 86 38.7) is "very faint, small, stellar appearance". The position precesses to within 0.1 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 5015 km/sec, about 225 million light years away. Given that and apparent size of 0.6 by 0.45 arcmin, about 40 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 74 Below, a 12 arcmin wide region centered on the galaxy |

IC 75 (= PGC 3959)
Discovered (Oct 17, 1892) by Stephane Javelle
A 14th-magnitude spiral galaxy (type Sb) in Pisces (RA 01 07 12, Dec +10 50 14)
Per Dreyer, IC 75 (= Javelle 517, 1860 RA 00 59 51, NPD 79 55.0) is "very faint, very small, diffuse, very slightly brighter middle". The position precesses to within 0.3 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 12325 km/sec, about 550 million light years away. Given that and apparent size of 0.85 by 0.65 arcmin, about 140 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 75 and a superimposed foreground star Below, a 12 arcmin wide region centered on the galaxy |

IC 76 (= PGC 4035 = PGC 143948)
Discovered (Dec 14, 1892) by Stephane Javelle
A 16th-magnitude spiral galaxy (type S?) in Cetus (RA 01 08 12, Dec -04 33 16)
Per Dreyer, IC 76 (= Javelle 518, 1860 RA 01 01 06, NPD 95 18.3) is "faint, very small, round, slightly brighter middle". The position precesses to within 0.1 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 7825 km/sec, about 350 million light years away. Given that and apparent size of 0.75 by 0.3 arcmin, about 75 thousand light years across. |
Above, a 1.2 arcmin wide closeup of IC 76 Below, a 12 arcmin wide region centered on the galaxy |

IC 77 (= PGC 73653)
Discovered (Aug 31, 1892) by Stephane Javelle
A 15th-magnitude lenticular galaxy (type S0) in Cetus (RA 01 08 44, Dec -15 25 15)
Per Dreyer, IC 77 (= Javelle 41, 1860 RA 01 01 48, NPD 106 10.2) is "very faint, small, irregular, brighter middle". The position precesses to within 0.1 arcmin of the correct position, so the identification is certain. Given that, it is ironic that IC 77 is often confused with 80. For instance, searching for IC 77 in Wikisky shows IC 80, instead (to see the correct object, enter the PGC number). Per Corwin, the confusion between IC 77 and IC 80 is due to an error in MCG. (The images below show the correct labels for galaxies in the region.) Based on recessional velocity of 17510 km/sec, about 780 million light years away. Given that and apparent size of 0.5 by 0.45 arcmin, about 120 thousand light years across. Like many of the other galaxies in the region, IC 77 is generally considered part of the rich cluster, Abell 151. However, recessional velocities indicate that "the" cluster consists of a group of foreground galaxies, which should perhaps be considered "true" Abell 151 members, and a group of more distant galaxies, at about the same distance as nearby Abell 166, which should probably be thought of as outlying members of that cluster. IC 77 is one of the galaxies at the larger distance, so although generally listed as part of Abell 151, it is probably actually part of Abell 166. |
Above, a 1 arcmin wide closeup of IC 77 Below, a 4.5 arcmin wide closeup of the region near the galaxy, for labeling purposes |

Below, a 12 arcmin wide region centered on IC 77

IC 78 (= PGC 4079)
Discovered (Aug 30, 1892) by Stephane Javelle
A 14th-magnitude spiral galaxy (type SA(rs)a pec) in Cetus (RA 01 08 48, Dec -15 50 41)
Per Dreyer, IC 78 (= Javelle 42, 1860 RA 01 01 52, NPD 106 35.4) is "faint, small, slightly brighter middle, mottled but not resolved". The position precesses to within 0.2 arcmin of the correct position, so the identification is certain. A Seyfert galaxy (type Sy2). Part of galaxy cluster Abell 151. As noted at 77, galaxies which appear to be in Abell 151 probably consist of two groups at different distances; but even if so, being in the nearer group, IC 78 is presumably part of Abell 151, no matter how it is (or is not) divided. Based on recessional velocity of 11765 km/sec, about 525 million light years away. Given that and apparent size of 1.75 by 0.75 arcmin, about 270 thousand light years across. Very large for a spiral galaxy, and intermediate in size between galaxies such as ours, and "giant" galaxies with ten times the size and a thousand times the mass of our Milky Way galaxy. |
Above, a 2 arcmin wide closeup of IC 78 Below, a 12 arcmin wide region centered on the galaxy |

IC 79 (= PGC 4082)
Discovered (Aug 30, 1892) by Stephane Javelle
A 14th-magnitude lenticular galaxy (type SA0) in Cetus (RA 01 08 50, Dec -15 56 54)
Per Dreyer, IC 79 (= Javelle 43, 1860 RA 01 01 54, NPD 106 41.7) is "round, small, brighter middle, nucleus equivalent to 14th-magnitude star". The position precesses to within 0.2 arcmin of the correct position, so the identification is certain. Like 78 (which see), part of Abell 151 no matter how that cluster is defined. Based on recessional velocity of 12595 km/sec, about 560 million light years away. Given that and apparent size of 1.2 by 0.9 arcmin, about 200 thousand light years across. |
Above, a 1.2 arcmin wide closeup of IC 79 Below, a 12 arcmin wide region centered on the galaxy |

IC 80 (= PGC 4071 + PGC 4072 (= PGC 138321); pair also = PGC 3325365)
Discovered (Aug 31, 1892) by Stephane Javelle
IC 80A = PGC 4071 is a 14th-magnitude spiral galaxy (type E/S0?) in Cetus (RA 01 08 51, Dec -15 24 23)
IC 80B = PGC 4072 is a 16th-magnitude galaxy (type S0?) at RA 01 08 51, Dec -15 24 32)
Per Dreyer, IC 80 (= Javelle 44, 1860 RA 01 01 56, NPD 106 09.2) is "very faint, small, round, gradually brighter middle". The position precesses to within 0.1 arcmin of the correct position, so the identification is certain. However, as noted for 77, an error in MCG has resulted in frequent confusion of the two galaxies (and others in the region). For instance, searching for IC 77 in Wikisky shows IC 80, while searching for IC 80 shows PCG 4070 (fortunately, using PCG numbers for the search shows the correct objects). IC 80A = PGC 4071 = IC 80 NED02 has a recessional velocity of 15425 km/sec, and an apparent size of 0.5 by 0.5 arcmin. IC 80B = PGC 4072 = IC 80 NED01 has a recessional velocity of 15910 km/sec, and an apparent size of 0.3 by 0.2 arcmin. The similar redshifts imply that the galaxies are about 700 million light years away, and almost certainly a gravitationally bound pair. Given their apparent sizes, 80A is about 100 thousand light years across, and 80B about 60 thousand light years. They (and many of the galaxies in their vicinity) are part of Abell 151, a rich cluster of galaxies. As noted for 77, Abell 151 probably consists of a foreground cluster superimposed on more distant galaxies which are more likely part of Abell 166. If so, the recessional velocity of IC 80 places it in the more distant cluster. Note: Steinicke correctly describes the components, but (presumably due to an uncharacteristic transcription error) has an incorrect value for the declination of 80B, placing it to the north of 80A, instead of the south. |
Above, a 1 arcmin wide closeup of IC 80/80A Below, a 4.5 arcmin wide closeup of the region near the galaxy, for labeling purposes |

Below, a 12 arcmin wide region centered on IC 80

IC 81 (= PGC 4127)
Discovered (Oct 18, 1887) by Lewis Swift
A 14th-magnitude spiral galaxy (type Sbc?) in Cetus (RA 01 09 22, Dec -01 41 42)
Per Dreyer, IC 81 (= Swift list VII (#2), 1860 RA 01 02 14, NPD 92 26.1) is "extremely faint, small, slightly extended, star 1 arcmin to southeast". (The original IC catalog entry had a slightly different right ascension, and incorrectly listed the star as being to the northeast; the errors were discovered by Howe, and noted in Dreyer's first correction to the IC.) The (corrected) position precesses to within 0.5 arcmin of the current catalog position, and there is a star just southeast of the galaxy, so the identification is certain. Based on recessional velocity of 3950 km/sec, about 175 million light years away. Given that and apparent size of 1.15 by 0.9 arcmin, about 60 thousand light years across. |
Above, a 1.2 arcmin wide closeup of IC 81 Below, a 12 arcmin wide region centered on the galaxy |

IC 82 (= PGC 4103)
Discovered (Aug 30, 1892) by Stephane Javelle
A 14th-magnitude spiral galaxy (type Sb?) in Cetus (RA 01 09 06, Dec -16 00 01)
Per Dreyer, IC 82 (= Javelle 45, 1860 RA 01 02 11, NPD 106 44.7) is "faint, small, gradually brighter middle". The position precesses to within 0.2 arcmin of the correct position, so the identification is certain. Listed as a member of Abell 151, but as noted at 77, that is apparently a nearer group (which would still be called Abell 151) superimposed on a more distant cluster, which is an outlying part of Abell 166. Two recessional velocities (and distances) are listed for IC 82. The lower values would put it in the nearer group of galaxies (Abell 151), while the higher values would put it in the more distant one (Abell 166). Based on a recessional velocity of 11955 km/sec, about 530 million light years away; but a second value of 16110 km/sec would put it 720 million light years away. Given its apparent size of 0.9 by 0.85 arcmin, about 140 thousand light years across if the nearer distance is correct, or 190 thousand light years across if the more distant is correct. |
Above, a 1.2 arcmin wide closeup of IC 82 Below, a 12 arcmin wide region centered on the galaxy |

IC 83 (= PGC 4182)
Discovered (Nov 5, 1891) by Stephane Javelle
A 15th-magnitude spiral galaxy (type S?) in Cetus (RA 01 10 30, Dec +01 41 21)
Per Dreyer, IC 83 (= Javelle 46, 1860 RA 01 03 15, NPD 89 02.3) is "faint, small, diffuse, slightly brighter middle". As for 84, which lies a minute of time to the east, and was discovered on the same night, the position precesses 1.4 arcmin northwest of the correct position, but there is nothing else nearby, so the identification appears to be reasonably certain (in any event, no one seems to have questioned it). IC 83 and 84 are both listed in NED as part of Abell 147, but have completely different distances, so one of them must be a foreground (or background) galaxy. Based on recessional velocity of 13355 km/sec, IC 83 is about 600 million light years away. Given that and apparent size of 0.65 by 0.45 arcmin, about 110 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 83 Below, a 12 arcmin wide region centered on the galaxy |

IC 84 (= PGC 4265)
Discovered (Nov 5, 1891) by Stephane Javelle
A 15th-magnitude lenticular galaxy (type S0?) in Cetus (RA 01 11 26, Dec +01 38 25)
Per Dreyer, IC 84 (= Javelle 47, 1860 RA 01 04 11, NPD 89 05.3) is "pretty bright, small, irregular figure, bright middle". As for 83, which lies a minute of time to the west, and was discovered on the same night, the position precesses to a position 1.4 arcmin northwest of the candidate galaxy, but there is nothing else nearby, so the identification appears to be reasonably certain (in any event, no one seems to have questioned it). IC 84 and 83 are both listed in NED as part of Abell 147, but have completely different distances, so one of them must be a foreground (or background) galaxy. Based on recessional velocity of 5010 km/sec, IC 84 is about 225 million light years away. Given that and apparent size of 0.65 by 0.4 arcmin, about 40 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 84 Below, a 12 arcmin wide region centered on the galaxy |

IC 85
Recorded (Dec 6, 1888) by Guillaume Bigourdan
A nonexistent object in Cetus (RA 01 11 47, Dec -00 28 17)Per Dreyer, IC 85 (= Bigourdan 113, 1860 RA 01 04 37, NPD 91 13) is "extremely faint, close to 8th-magnitude star". The position precesses to the position shown above, which is about 2 arcmin southwest of 8th-magnitude HD 7162, but there is nothing at or near the location, stellar or otherwise. The 4 arcmin wide view (below) of the region centered on the supposed location of the object shows HD 7162 at upper left, and the nonexistence of any object near the recorded position. |

IC 86 (= PGC 165316)
Discovered (Sep 2, 1892) by Stephane Javelle
A 15th-magnitude spiral galaxy (type SBab) in Cetus (RA 01 13 28, Dec -16 14 28)
Per Dreyer, IC 86 (= Javelle 48, 1860 RA 01 06 36, NPD 106 59.0) is "faint, suddenly bright middle". The position precesses to within 0.1 arcmin of the correct position, so the identification is certain. Given that, it is odd that Thomson attributes the "error" in Dreyer's position to an incorrect precessional correction to Javelle's observation; but he also confirms the identity with the galaxy, so whatever the reason for the confusion, there is no disagreement about which galaxy should be listed as IC 86. Note: A Wikisky search for IC 86 centers on a region to the northeast of the galaxy, suggesting that there is (somewhere) a mistaken transcription of Dreyer's position corresponding to the "error" mentioned by Thomson; but a search for PGC 165316 centers on the galaxy. Based on recessional velocity of 13180 km/sec, about 590 million light years away. Given that and apparent size of 0.7 by 0.4 arcmin, about 120 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 86 Below, a 12 arcmin wide region centered on the galaxy |

IC 87 (= PGC 4454)
Discovered (Dec 12, 1893) by Stephane Javelle
A 14th-magnitude barred spiral galaxy (type SB?) in Cetus (RA 01 14 16, Dec +00 45 57)
Per Dreyer, IC 87 (= Javelle 519, 1860 RA 01 07 04, NPD 89 58.3) is "faint, pretty small, round, diffuse". The position precesses to within 0.4 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 12740 km/sec, about 570 million light years away. Given that and apparent size of 0.65 by 0.55 arcmin, about 110 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 87 Below, a 12 arcmin wide region centered on the galaxy |

IC 88 (= PGC 1175571)
Discovered (Dec 12, 1893) by Stephane Javelle
A 15th-magnitude spiral galaxy (type S?) in Cetus (RA 01 14 31, Dec 00 47 30)
Per Dreyer, IC 88 (= Javelle 520, 1860 RA 01 07 19, NPD 89 56.8) is "pretty faint, small, round, very slightly brighter middle". The position precesses to within 0.4 arcmin of the correct position, so the identification is certain. Unfortunately, (per Corwin) MCG and HyperLeda list an incorrect position and PGC number for IC 88, and Wikisky copies the error (NED uses the correct values). As a result, a Wikisky search for IC 88 shows PGC 4455, which is the wrong object; searching for PGC 1175571 shows the correct galaxy. A Seyfert galaxy (type Sy1). Based on recessional velocity of 19585 km/sec, about 875 million light years away. Given that and apparent size of 0.5 by 0.45 arcmin, about 130 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 88 Below, a 12 arcmin wide region centered on the galaxy |

IC 89 (= NGC 446 = PGC 4578)
Discovered (Oct 23, 1864) by Albert Marth (and later listed as NGC 446)
Discovered (Aug 20, 1892) by Stephane Javelle (and later listed as IC 89)
Per Dreyer, IC 89 (= Javelle 49, 1860 RA 01 08 48, NPD 86 27.0) is "faint, small, irregular figure, nucleus equivalent to 13th-magnitude star, 462 to the east" (462 presumably refers to NGC 462, which is half a degree to the east). The position precesses to within 0.4 arcmin of the correct position, so the identification is certain, as is the identity with NGC 446. Per Corwin, Javelle's position was dead on, but Marth's was off by a minute of time, hence the double entry by Dreyer. Note: A Wikisky search for IC 89 shows the correct object, but searching for NGC 446 (incorrectly) shows PGC 4494. |
IC 90 (= PGC 4606)
Discovered (Jan 2, 1889) by N. M. Parrish
A 14th-magnitude elliptical galaxy (type cD/E3) in Cetus (RA 01 16 30, Dec -07 58 36)
Per Dreyer, IC 90 (= Ormond Stone, 1860 RA 01 09 29, NPD 98 43.0) is "bright, very small, suddenly bright middle and nucleus". The position precesses to within 0.1 arcmin of the correct position, so the identification is certain. Stone presumably authored the paper referred to by Dreyer, but several other astronomers and assistants worked with Stone, and were often the actual discoverers, as noted for this object. Based on recessional velocity of 5550 km/sec, about 250 million light years away. Given that and apparent size of 1.3 by 0.9 arcmin, about 95 thousand light years across. |
Above, a 1.5 arcmin wide closeup of IC 90 Below, a 12 arcmin wide region centered on the galaxy |

IC 91 (= PGC 1230543)
Discovered (Jan 8, 1894) by Stephane Javelle
A 16th-magnitude spiral galaxy (type S?) in Cetus (RA 01 18 39, Dec +02 33 15)
Per Dreyer, IC 91 (= Javelle 521, 1860 RA 01 11 28, NPD 88 11.1) is "faint, small, mottled but not resolved, nucleus equivalent to 14th-magnitude star". The position precesses to within 0.4 arcmin of the correct position, so the identification is certain. Note: Despite the relatively accurate position, a Wikisky search for IC 91 centers near a 17th-magnitude star to the southeast of the galaxy; a search for the PGC number shows the correct object. Based on recessional velocity of 7055 km/sec, about 315 million light years away. Given that and apparent size of 0.65 by 0.2 arcmin, about 60 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 91 Below, a 12 arcmin wide region centered on the galaxy |

IC 92 (= NGC 468, which see, and = PGC 4780)
Discovered (Nov 22, 1827) by John Herschel (and later listed as NGC 468)
Discovered (Nov 2, 1885) by Guillaume Bigourdan (and later listed as IC 92)
Per Dreyer, IC 92 (= Bigourdan 115, 1860 RA 01 12 04, NPD 57 59) is "very extremely faint, possibly different from h98" (meaning number 98 in Herschel's catalog, which is NGC 468). Bigourdan's position precesses to 1.4 arcmin southeast of NGC 468, and despite the listing's dubious tone must be Herschel's h98. Both observers recorded right ascensions slightly east and declinations south of the galaxy; but as noted by Corwin, Herschel's position was 4 arcmin south and Bigourdan's only 1, so Bigourdan had ample reason to think he had found a new object. In any event, the difference in position was large enough to cause the double listing by Dreyer. |
IC 93 (= IC 1671 = PGC 4724 = PGC 889345)
Discovered (Sep 18, 1889) by Lewis Swift (and later recorded as IC 93)
"Rediscovered" (1895) by Lewis Swift (and later recorded as IC 1671)
A 13th-magnitude spiral galaxy (type Sb pec) in Cetus (RA 01 19 02, Dec -17 03 40)
Per Dreyer, IC 93 (= Swift list IX (#2), 1860 RA 01 12 07, NPD 107 48.3) is "very faint, pretty small, slightly extended, with 8th-magnitude star 14 sec east and 1 arcmin north" (the 14 sec east is an error by Dreyer; Swift's list puts the star 46 sec east). The position for IC 93 precesses to only 1 arcmin northwest of the correct position, so its identification is reasonably certain. (See 1671 for a discussion of the double listing.) Based on recessional velocity of 5975 km/sec, about 265 million light years away. Given that and apparent size of 1.2 by 0.5 arcmin, about 95 thousand light years across. |
Above, a 1.2 arcmin wide closeup of IC 93 Below, a 12 arcmin wide region centered on the galaxy |

IC 94
Recorded (Nov 2, 1885) by Guillaume Bigourdan
A nonexistent object or (perhaps) a 15th-magnitude star in Pisces (RA 01 20 05, Dec +32 43 02)
Per Dreyer, IC 94 (= Bigourdan 116, 1860 RA 01 12 17, NPD 58 02) is a "nebula equivalent to 13th-magnitude star". The position precesses to 0.8 arcmin south of the position listed above, which is that of a star identified as IC 94 by every reference I have seen. Given Bigourdan's tendency to see faint stars as nebulous objects, this isn't an unreasonable identification, especially since his observation of IC 92, made on the same night, has a similar (but slightly larger) error. The one question would be his statement that the object was about 13th magnitude, which would make it at least 4 times brighter. But there are no significantly brighter objects within a reasonable distance of the listed star, so it is the most likely candidate. The image below shows a 6 arcmin wide region centered on Bigourdan's position (marked with a "+"), which also includes the candidate star. |

IC 95 (= PGC 950887)
Discovered (Nov 3, 1891) by Stephane Javelle
A 16th-magnitude elliptical galaxy (type E1?) in Cetus (RA 01 19 18, Dec -12 34 25)
Per Dreyer, IC 95 (= Javelle 50, 1860 RA 01 12 22, NPD 103 18.5) is "faint, very small, diffuse, very slightly brighter middle". The position precesses to within 0.2 arcmin of the correct one, so the identification is certain. Based on recessional velocity of 13265 km/sec, about 590 million light years away. Given that and apparent size of 0.55 by 0.5 arcmin, about 95 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 95 Below, a 12 arcmin wide region centered on the galaxy |

IC 96 (probably = IC 1672, and if so = PGC 4848)
Discovered (Dec 1, 1866) by Truman Safford (and later listed as IC 96)
Discovered (1899) by Stephane Javelle (and later listed as IC 1672)
A 13th-magnitude spiral galaxy (type Sb?) in Pisces (RA 01 20 38, Dec +29 41 56)
Per Dreyer, IC 96 (= Safford 69, 1860 RA 01 12 34, NPD 61 04.0) is "pretty bright, pretty small, very much brighter middle, nucleus equivalent to 12th or 13th-magnitude star". The position precesses 15 to 20 seconds to the west of the correct position, depending upon which galaxy Safford observed, so the identification is uncertain. Most catalogs, including NED and Steinicke, which I usually rely on, correlate IC 96 with PGC 4840. However, Thomson makes a hesitant but compelling argument that IC 96 is more likely to be PGC 4848, and if so, identical to IC 1672. As shown in the wide-field image, Safford's position was so far off that he could have observed either galaxy, but since he only mentioned one of the two galaxies, it would be more likely that he observed the brighter one, even without any knowledge of the appearance of his object. As my opinion, the clincher is a comparison of his description with the images of PGC 4840 and 4848 shown below. Both his stated appearance and brightness agree with the brighter galaxy, while neither agree with the fainter; so I have adopted Thomson's suggestion. Based on its recessional velocity of 7025 km/sec, PGC 4848 is about 315 million light years away. Given that and its apparent size of 1.3 by 1.0 arcmin, it is about 120 thousand light years across. |
Above, a 1.5 arcmin wide closeup of PGC 4848, which is probably IC 96 and certainly IC 1672 Below, a 12 arcmin wide region centered on the galaxy, also showing PGC 4840 at the bottom Safford's position is shown by the "+" well to the right of center |

IC 97 (= NGC 475 = PGC 4796)
Discovered (Nov 3, 1864) by Albert Marth (and later listed as NGC 475)
Discovered (Oct 12, 1888) by Guillaume Bigourdan (and later listed as IC 97)
Per Dreyer, IC 97 (= Bigourdan 117, 1860 RA 01 12 35, NPD 75 53) is "stellar, equivalent to 13.5 magnitude star". The position precesses to within 0.5 arcmin of NGC 475, so the identification is certain. Per Corwin, Marth made an accurate measurement of NGC 475, but an incorrect measurement by Peters was used by Dreyer to "correct" Marth's position. Since Bigourdan only saw a star near the incorrectly listed NGC position, he thought he had found a new nebula when he observed Marth's object. So although a duplicate observation, it was an independent discovery. |
IC 98 (= PGC 4869)
Discovered (Nov 3, 1891) by Stephane Javelle
A 15th-magnitude elliptical galaxy (type E0?) in Cetus (RA 01 20 55, Dec -12 36 15)
Per Dreyer, IC 98 (= Javelle 51, 1860 RA 01 13 59, NPD 103 20.6) is "very faint, very small, irregular figure, bright middle". The position precesses to within 0.2 arcmin of the correct position, so the identification is certain. Apparent size 0.6 by 0.6 arcmin; apparently nothing else known |
Above, a 1 arcmin wide closeup of IC 98 Below, a 12 arcmin wide region centered on the galaxy |

IC 99 (= PGC 4997)
Discovered (Jan 2, 1892) by Stephane Javelle
A 15th-magnitude barred spiral galaxy (type SB?) in Cetus (RA 01 22 27, Dec -12 57 09)
Per Dreyer, IC 99 (= Javelle 52, 1860 RA 01 15 32, NPD 103 41.1) is "very faint, small, slightly brighter middle". The position precesses to within 0.1 arcmin of the correct position, so the identification is certain. Based on recessional velocity of 14770 km/sec, about 660 million light years away. Given that and apparent size of 0.5 by 0.5 arcmin, about 95 thousand light years across. |
Above, a 1 arcmin wide closeup of IC 99 Below, a 12 arcmin wide region centered on the galaxy |

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