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IC 5350 - 5386 ← NGC Objects: NGC 1 - 49 → NGC 50 - 99
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Page last updated Aug 12, 2017

NGC 18 (= "PGC 5067692")
Recorded (Oct 15, 1866) by Herman Schultz
Looked for (Oct 2, 1882) but not found by Édouard Stephan
Also observed (Nov 18, 1886) by Guillaume Bigourdan
A magnitude 13.4 and 13.6 double star in Pegasus (RA 00 09 23.1, Dec +27 43 53)
Historical Identification: Per Dreyer, NGC 18 (= GC 5085, Schultz (Nova I), 1860 RA 00 02 11, NPD 63 02.8) is "faint, very small, irregularly round, much brighter middle, h 4 19s to west", (JH) 4 being NGC 16 (which see for an image of NGC 18). A note at the end of the NGC indicates the likelihood that the object was not nebulous: "18: GC 5085, nova Schultz. Not seen by Stephan (list XIII (Remark 1)); does not occur in d'Arrest's nor in Lord Rosse's observations." (Rosse or his assistants observed Schultz's Nova II = GC 6 = NGC 29 in 1857 and 1867, but made no mention of Schultz' Nova I.) Though not mentioned by Dreyer, Bigourdan did see the object, but declared it merely stellar (which it is). The NGC position precesses to RA 00 09 23.7, Dec +27 43 58, within 0.1 arcmin of the pair of stars listed above, and NGC 16 lies 18 seconds to the west, so the identification is certain.
Discovery Note: Stephan's list XIII Remark 1 states that not only GC 5085 (= NGC 18) was not in the GC position, but also GC 12 (= JH 5 = NGC 16). The date shown for his failure to observe either object is based on the fact that he found NGC 22 on the same night that he failed to observe the other objects.
Note About PGC Designation: LEDA assigns a PGC designation for this entry even though it is only a double star. However, a search of the database for PGC 5067692 returns no result, so the PGC designation is essentially useless (hence its being shown in quotes).
SDSS image of region near the pair of stars listed as NGC 18, also showing NGC 16 and part of NGC 22
Above, a 12 arcmin wide SDSS image centered on NGC 18, also showing NGC 16 and part of NGC 22

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IC 5350 - 5386 ← NGC Objects: NGC 1 - 49 → NGC 50 - 99