Historical Identification: Per Dreyer, NGC 7550 (= GC 4915 = JH 2219 = WH III 181, 1860 RA 23 08 19, NPD 71 48.1) is "considerably faint, small, round".
Physical Information: Apparent size about 1.4 by 1.2 arcmin? Used by the Arp Atlas as an example of a spiral galaxy (NGC 7549) with an elliptical companion. Some catalogs incorrectly include NGC 7547 as part of Arp 99, so see that entry for a discussion of why that is wrong. However, NGC 7547 probably is part of a triple system with the pair of galaxies that form Arp 99, as all three have similar radial velocities.

Historical Identification: Per Dreyer, NGC 7551 (= GC 6152, Marth #548, 1860 RA 23 08 22, NPD 74 50) is "a nebulous star of 13th magnitude".
Physical Information: Save for its apparent size of about 0.3 by 0.2 arcmin, nothing seems to be known about NGC 7551. This is probably partly due to considerable confusion about which galaxy corresonds to this entry. An NED search for NGC 7551 lists the position above, and states that the galaxy is PGC 70791. But LEDA gives a position for PGC 70791 which is identical to PGC 70788, which is NGC 7540, and as a result every other search result I've seen for NGC 7551 shows NGC 7540 instead. There is a obviously a serious error somewhere, which I hope to clear up in the next iteration of this page.

Historical Identification: Per Dreyer, NGC 7552 (= GC 4916 = JH 3977, Dunlop 475?, 1860 RA 23 08 25, NPD 133 21.5) is "bright, small, much extended 90��, very suddenly brighter middle equal to 13th magnitude star".
Physical Information: A member of the Grus Quartet of spiral galaxies (NGC 7552, 7582, 7590 and 7599, as shown in the images below). Based on a recessional velocity of 1610 km/sec, NGC 7552 is about 75 million light years away, in reasonable agreement with redshift-independent distance estimates of 55 to 70 million light years. Given that and its apparent size of 3.4 by 2.7 arcmin, it is about 75 thousand light years across. Two of the four members of the Grus Quartet are also listed as members of a group of galaxies in or near Sculptor with recessional velocities of about 1500 to 1800 km/sec (this is not "the" Sculptor Group, a close neighbor to our Local Group, with an average recessional velocity of less than 300 km/sec); so all of the Grus Quartet members are presumably also members of the larger group.

Historical Identification: Per Dreyer, NGC 7553 (= GC 4913 = GC 6153, 3rd Lord Rosse, Schultz, 1860 RA 23 08 26, NPD 71 46.8) is "very faint, very small, round".
Discovery Notes: Although Dreyer credits the discovery to William Parsons, 3rd Earl of Rosse, he notes that many of Rosse's nebular discoveries were actually made by one of his assistants, in this case Bindon Stoney.
Physical Information: Apparent size about 0.4 by 0.4? arcmin.

Historical Identification: Per Dreyer, NGC 7554 (= GC 6154, Marth #549, 1860 RA 23 08 29, NPD 93 09) is "extremely faint, extremely small, almost stellar, h 2220 to east", (JH) 2220 being NGC 7556.
Physical Information: Apparent size about 0.4 by 0.4? arcmin. Apparently on the outskirts of NGC 7556, which see for images.

Historical Identification: Per Dreyer, NGC 7555 (= GC 4918 = JH 2221, 1860 RA 23 08 30�, NPD 78 11�) is "faint, round, brighter middle, place very rough". Probably a misrecorded observation of NGC 7515, 7536, 7559, 7563, or 7570

Historical Identification: Per Dreyer, NGC 7556 (= GC 4919 = JH 2220 = WH II 235, 1860 RA 23 08 32, NPD 93 09.1) is "considerably faint, pretty large, round, bright double star to east".
Physical Information: Apparent size about 2.5 by 1.6? arcmin.

Physical Information: Apparent size about 0.3 by 0.2? arcmin. Given the lack of absorption or obscuration by its neighbors, probably a foreground object merely in line with the halo of NGC 7556 (which see for images). However, given the large number of galaxies in the region, probably a member of the same cluster of galaxies. (Note: Although listed as PGC 4662918 in LEDA, a search for that object returns nothing, whereas a search for 2MASXJ23154371-0223089 or NGC 7556A does show the object.)

Historical Identification: Per Dreyer, NGC 7557 (= GC 4917, 3rd Lord Rosse, 1860 RA 23 08 33, NPD 84 03.3) is "very faint, very small, western of 2", the other presumably being NGC 7562.
Discovery Notes: Although Dreyer credits the discovery to William Parsons, 3rd Earl of Rosse, he notes that many of Rosse's nebular discoveries were actually made by one of his assistants, in this case Bindon Stoney.
Physical Information: Apparent size about 0.6 by 0.6? arcmin.

Historical Identification: Per Dreyer, NGC 7558 (= GC 6155, Marth #550, 1860 RA 23 08 41, NPD 71 51) is "most extremely faint, nebulous star of 13th magnitude".
Physical Information: Apparent size about 0.4 by 0.4? arcmin.

Historical Identification: Per Dreyer, NGC 7559 (= GC 4920 = JH 2222 = WH III 221, 1860 RA 23 08 46, NPD 77 28.4) is "faint, considerably small, round, brighter middle equal to 16th magnitude star, northwestern of 2", the other being NGC 7563.
Physical Information: Apparent size about 1.0 by 0.8 arcmin. Accompanied by a much fainter companion, PGC 70852, which is sometimes called NGC 7559B; however, it is not unusual for that galaxy to be mislabeled as NGC 7559 and the main galaxy as NGC 7559B, providing another example of why such non-standard designations should never be used.

Historical Identification: Despite its apparent proximity to NGC 7559, PGC 70852 is far to faint for Herschel to have seen, so even if it turns out to be a physical companion of the brighter galaxy, it would not be considered part of the NGC entry.
Warning About Non-Standard Designations: As in many cases where letters are added to NGC/IC designations to identify other objects, contradictory and confusing misidentifications have been applied to this object, which is sometimes misidentified as NGC 7559, leading its much brighter companion to be misidentified as NGC 7559B. For such reasons, the use of letters attached to NGC/IC designations should be strongly discouraged.
Physical Information: Apparent size 0.3 by 0.2? arcmin.

Historical Identification: Per Dreyer, NGC 7560 (= GC 6156, Schultz (#2, Nova X), 1860 RA 23 08 47, NPD 86 16.0) is "faint, very small, irregularly round, southwestern of 2", the other being NGC 7561.

Historical Identification: Per Dreyer, NGC 7561 (= GC 6157, Schultz (#3, Nova XI), 1860 RA 23 08 51, NPD 86 14.5) is "faint, very small, irregularly round, northeastern of 2", the other being NGC 7560. The second IC adds "I assume this = Bigourdan 350, RA 23 08 50, NPD 86 15, extremely faint, stellar".

Historical Identification: Per Dreyer, NGC 7562 (= GC 4921 = JH 2224 = WH II 467, 1860 RA 23 08 51, NPD 84 04.5) is "considerably bright, pretty small, irregularly round, pretty suddenly brighter middle".
Physical Information: Apparent size about 2.2 by 1.7? arcmin.

Historical Identification:
Physical Information: Apparent size about 1.5 by 0.4? arcmin.

Historical Identification: Per Dreyer, NGC 7563 (= GC 4922 = JH 2223 = WH III 222, 1860 RA 23 08 55, NPD 77 34.0) is "pretty faint, considerably small, round, suddenly brighter middle equal to 16th magnitude star, southeastern of 2", the other being NGC 7559.
Physical Information: Apparent size about 1.9 by 0.9? arcmin.

Historical Identification: Per Dreyer, NGC 7564 (Bigourdan (list II #96), 1860 RA 23 08 56, NPD 83 25) is "very faint, extremely small, stellar nucleus." The position precesses to RA 23 16 01.6, Dec +07 20 46, about 0.15 arcmin south-southeast of the star listed above, the description is perfect and there is nothing else (even similar stars) nearby, so the identification is certain.
Historical Misidentification: Unfortunately, the quick and dirty RNGC (published in the mid-1970's) almost always assigned NGC numbers of objects that weren't galaxies to the nearest galaxy they could find, leading to hundreds of errors in that catalog. In this case they identified PGC 70843, a galaxy located about 6 arcmin to the west-southwest of Bigourdan's position, as NGC 7564. That error was copied by LEDA and SIMBAD (and still remains in their online databases), and although NED correctly lists NGC 7564 as the star listed above, it shows the physical data for PGC 70843, indicating that the RNGC error has led professional astronomers unaware of the RNGC's defects to mistakenly think that NGC 7564 is that galaxy. For that reason, PGC 70843 is discussed in the following entry.

Historical Misidentification: As noted in the entry for 7564, the RNGC's blunder was copied by LEDA and SIMBAD, and although NED now lists the correct object (a star) as NGC 7564, it lists the physical data for PGC 70843 in the same entry, leading to a number of observations of the galaxy being incorrectly attributed to NGC 7564.
Image Search Note: Because of the misidentification of this galaxy as NGC 7564, although some searches for images of NGC 7564 show the correct stellar object, many (e.g., Wikisky and Aladin) show PGC 70843 instead.
Physical Information: Based on a recessional velocity relative to the Cosmic Background Radiation of about 9840 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that PGC 7843 is about 455 to 460 million light-years away, in fairly reasonable agreement with a single redshift-independent distance estimate of about 430 million light-years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 440 million light-years away at the time the light by which we see it was emitted, nearly 450 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 0.55 by 0.35 arcmin (from the images below), the galaxy is about 70 to 75 thousand light-years in diameter.
Classification Note: It has been suggested that PGC 70843 is the result of the merger of two galaxies, but only one nucleus is visible, so though its peculiar structure may be due to an interaction with another galaxy, that must have been at a considerable time in the past.

Historical Identification: Per Dreyer, NGC 7565 (= GC 6158, Secchi (#2), 1860 RA 23 09 09, NPD 90 49.2) is "very faint".
Discovery Notes: Ferrari was a fellow of the Roman College Observatory, whose director was Angelo Secchi. Secchi wrote the paper announcing Ferrari's discoveries, so he received the credit in the corresponding NGC entries.

Historical Identification: Per Dreyer, NGC 7566 (= GC 4923 = WH III 185, 1860 RA 23 09 09, NPD 93 06.9) is "very faint, pretty small, extended, extremely mottled but not resolved, 3 faint stars involved". The second IC lists a corrected RA (per Bigourdan) of 23 09 26.
Physical Information: Apparent size about 1.4 by 0.7? arcmin.

Historical Identification: Per Dreyer, NGC 7567 (= GC 6159, Marth #551, 1860 RA 23 09 10, NPD 74 56) is "most extremely faint, very small, extended".
Physical Information: Apparent size about 0.9 by 0.2? arcmin.

Historical Identification: Per Dreyer, NGC 7568 (= GC 6160, Stephan list VIII (#28), 1860 RA 23 09 32, NPD 66 16.0) is "extremely faint, pretty large, irregularly round, several stars involved".
Physical Information: Apparent size about 0.9 by 0.6? arcmin.

Historical Identification: Per Dreyer, NGC 7569 (Swift list IV (#93), 1860 RA 23 09 40, NPD 79 51.4) is "very faint, small, round, 3 faint stars to southeast".
Physical Information: Apparent size about 1.0 by 0.7? arcmin.

Historical Identification: Per Dreyer, NGC 7570 (= GC 4924 = WH III 238, 1860 RA 23 09 43, NPD 77 16.9) is "extremely faint, extremely small".
Physical Information: Apparent size about 1.6 by 0.9? arcmin.

Historical Identification: Per Dreyer, NGC 7571 (= GC 6161, Schultz, 1860 RA 23 09 50, NPD 71 47) is "very faint, considerably extended, several knots or groups of nebulae". The second IC lists a corrected RA (per Bigourdan) of 23 10 12.
Discovery Notes: A reference to h 2219 (= NGC 7550) in Steinicke's Historical NGC/IC entry for NGC 7571 makes no sense to me; but I will try to resolve that question in the next iteration of this page.
Physical Information: Apparent size about 1.0 by 1.0? arcmin.

Historical Identification: Per Dreyer, NGC 7572 (= GC 6162, Marth #552, 1860 RA 23 09 52, NPD 72 18) is "most extremely faint, almost stellar".
Physical Information: Apparent size about 0.8 by 0.2? arcmin.

Historical Identification: Per Dreyer, NGC 7573 (Muller list II (#473), 1860 RA 23 09 54, NPD 112 55.8) is "extremely faint, small, irregularly round, brighter on northwest, 10th magnitude star 4' to west". The second IC notes "RA is about 50 seconds too great (Howe)".
Physical Information: Apparent size about 1.3 by 1.1? arcmin.

Historical Identification: Per Dreyer, NGC 7574 (= GC 6163, d'Arrest, 1860 RA 23 09 59, NPD 66 46.2) is "pretty faint, small, extended, partially resolved (some stars seen)".
Physical Information: Given the duplicate entry, see NGC 7568 for anything else.

Historical Identification: Per Dreyer, NGC 7575 (= GC 6164, Marth #553, 1860 RA 23 10 10, NPD 84 07) is "faint, small, very little extended".
Physical Information: Apparent size about 0.5 by 0.3? arcmin.

Historical Identification: Per Dreyer, NGC 7576 (= GC 4925 = WH II 454, 1860 RA 23 10 11, NPD 95 29.8) is "faint, small, suddenly much brighter middle".
Physical Information: Apparent size about 1.3 by 0.9? arcmin.

Historical Identification: Per Dreyer, NGC 7577 (Bigourdan (list II #97), 1860 RA 23 10 13, NPD 83 23) is "a magnitude 13.5 star in a very faint nebula".
Physical Information: Apparent size about 0.3 by 0.2? arcmin.

Historical Identification: Per Dreyer, NGC 7578 (= GC 4926 = JH 2225 = WH III 182, 1860 RA 23 10 14, NPD 72 04.3) is "very faint, among very small (faint) stars". The description is due to John Herschel; his father William only noted "faint". The position is not good enough to tell which of the two galaxies Herschel observed. PGC 70934 is a more intense point of light (having the same brightness in a smaller area, as stated below), so that may be what Herschel noticed; but keeping in mind the limit of brightness and resolution two hundred plus years ago, odds are that he saw the combined light of the pair.
Physical Information: PGC 70933 is about 0.8 by 0.8 arcmin, and PGC 70934 about 0.4 by 0.4 arcmin.

Historical Identification: Per Dreyer, NGC 7579 (= GC 6165, Marth #554, 1860 RA 23 10 34, NPD 81 20) is "extremely faint, very small, stellar".
Physical Information: Apparent size about 0.5 by 0.4? arcmin.

Historical Identification: Per NGC 7580 (Swift list V (#99), 1860 RA 23 10 35, NPD 76 45.7) is "very faint, pretty small, round, faint star to southwest". The second IC lists a corrected position (per Howe) of RA 23 10 19, NPD 76 40.7.
Physical Information: Apparent size about 0.8 by 0.6? arcmin.

Historical Identification: Per Dreyer, NGC 7581 (= GC 6166, Holden, 1860 RA 23 10 38, NPD 86 05.8) is "very faint, much extended, 12th or 13th magnitude star close to east". (Based on notes by Corwin, it might be better to say that NGC 7581 might be a duplicate of NGC 7541, and perhaps "lost or nonexistent" would be still better; but there are many questions about this observation (aside from the ones noted below) that will have to wait for the next iteration of this page.)
Discovery Notes: There appears to be no publication that lists Holden as the observer of GC 6166 save Dreyer's 1878 Supplement to the GC and the NGC itself. The only other reference that mentions the observation is the United States Naval Observatory's Astronomical, magnetic and meteorological observations made during the Year 1875 at the United States Naval Observatory, which notes a nova discovered by Tuttle while searching for Comet Encke at a position (1875 RA 23 11.4, Dec +03 59) that precesses to the NGC's 1860 position (whence Tuttle's discovery credit above). However, the page listing the "nova" shows that Holden was observing a satellite of Neptune on that night, so (per Corwin) it is possible that Holden was the actual observer, and sent Dreyer a note correcting the error in the attribution, including the note about the star to the east, which is not mentioned in the USNO publication (hence his also being listed above).
Additional Note: Although listed as perhaps a duplicate of NGC 7541, that identification is considered doubtful, and is only mentioned in case the reader has run across it without any warning of that fact. Further attention to the discovery observations may completely change this entry.
Physical Information: Given the possible duplicate entry, for now see NGC 7541 for anything else. However, as noted above, if the confusion about the possible duplication is resolved, this entry may be considerably altered.

Historical Identification: Per Dreyer, NGC 7582 (= GC 4927 = JH 3978, Dunlop 476?, 1860 RA 23 10 40, NPD 132 53.0) is "pretty bright, large, pretty much extended, gradually brighter middle". The second IC lists a corrected NPD (per DeLisle Stewart) of 133 07 and notes that Herschel made only one observation.
Physical Information: A member of the Grus Quartet of spiral galaxies (NGC 7552, 7582, 7590 and 7599 (see image of all four at NGC 7552). Based on a recessional velocity of 1575 km/sec, NGC 7582 is about 75 million light years away, in reasonable agreement with redshift-independent distance estimates of 55 to 65 million light years. Given that and its apparent size of 5.0 by 2.3 arcmin, it is about 100 thousand light years across. Two of the members of the Grus Quartet are also listed as part of a group of galaxies in or near Sculptor with recessional velocities of about 1500 to 1800 km/sec (this is not "the" Sculptor Group, a close neighbor to our Local Group with an average recessional velocity of less than 300 km/sec); so all the Grus Quartet galaxies are presumably members of the larger group.

Historical Identification: Per Dreyer, NGC 7583 (= GC 6167, Marth #555, 1860 RA 23 10 46, NPD 83 21) is "very faint, very small".
Physical Information: Apparent size 0.7 by 0.7? arcmin.

Historical Identification: Per Dreyer, NGC 7584 (= GC 6168, Marth #556, 1860 RA 23 10 48, NPD 81 20) is "extremely faint, very small, stellar".
Physical Information: Apparent size 0.4 by 0.4? arcmin.

Historical Identification: Per Dreyer, NGC 7585 (= GC 4928 = JH 2226 = JH 3979 = WH II 236, 1860 RA 23 10 48, NPD 95 24.8) is "pretty bright, pretty small, irregularly round, gradually brighter middle".
Physical Information: Apparent size 2.3 by 2.0? arcmin.

Historical Identification: Per Dreyer, NGC 7586 (= GC 6169, Marth #557, 1860 RA 23 10 49, NPD 82 10) is "extremely faint, very small, almost stellar".
Modern Misidentifications: The RNGC misidentified NGC 7586 as PGC 70965, and as a result, so did the CGCG, PGC, HyperLEDA and SIMBAD. Of the major databases, only NED correctly identifies NGC 7586 as PGC 1349697 (though my site, and Corwin, Gottlieb and Steinicke's sites have all corrected that error).
Physical Information: Apparent size 0.4 by 0.3? arcmin.

Historical Identification: Per Dreyer, NGC 7587 (= GC 6170, Marth #558, 1860 RA 23 10 53, NPD 81 05) is "very faint, very small, a little extended, gradually brighter middle".
Physical Information: Apparent size 1.2 by 0.3? arcmin.

Historical Identification: Per Dreyer, NGC 7588 (= GC 6171, Marth #559, 1860 RA 23 10 59, NPD 72 01) is "extremely faint, extremely small".
Physical Information: Apparent size 0.3 by 0.2? arcmin.

Historical Identification: Per Dreyer, NGC 7589 (= GC 6172, Marth #560, 1860 RA 23 11 04, NPD 90 30) is "extremely faint, very small".
Physical Information: Apparent size 1.1 by 0.7? arcmin.

Historical Identification: Per Dreyer, NGC 7590 (= GC 4929 = JH 3980, Dunlop 477 & 1, 1860 RA 23 11 09, NPD 132 59.9) is "pretty bright, pretty large, pretty much extended, gradually brighter middle, western of 2", the other being NGC 7599.
Physical Information: A member of the Grus Quartet of spiral galaxies (NGC 7552, 7582, 7590 and 7599; see image of all four at NGC 7552). Based on a recessional velocity of 1575 km/sec, NGC 7590 is about 75 million light years away, in good agreement with redshift-independent distance of 60 to 90 million light years. Given that and its apparent size of 2.7 by 1.0 arcmins, it is about 60 thousand light years across. NGC 7590 is listed as a member of a group of galaxies in or near Sculptor with recessional velocities of about 1500 to 1800 km/sec (this is not "the" Sculptor Group, a close neighbor to our Local Group, with an average recessional velocity of less than 300 km/sec); so all Grus Quartet members are presumably members of the larger group.

Historical Identification: Per Dreyer, NGC 7591 (= GC 6173, Marth #561, 1860 RA 23 11 10, NPD 84 11) is "pretty faint, small, round, very gradually brighter middle".
Physical Information: Apparent size 1.9 by 0.8? arcmin.

Historical Identification: Per Dreyer, NGC 7592 (= GC 4930 = WH III 186, d'Arrest, 1860 RA 23 11 11, NPD 95 10.8) is "extremely faint, very small".
Physical Information: Apparent size 1.1 by 0.9? arcmin.

Historical Identification: Per Dreyer, NGC 7593 (= GC 6174, Marth #562, 1860 RA 23 11 17, NPD 79 25) is "faint, small, round". The second IC lists a corrected RA (per Bigourdan) of 23 10 53.
Physical Information: Apparent size 1.0 by 0.6? arcmin.

Historical Identification: Per Dreyer, NGC 7594 (Common (#27), 1860 RA 23 11 24, NPD 80 34) is "pretty faint, round, 3 stars to west." The position precesses to RA 23 18 28.0, Dec +10 11 52, but there is nothing there nor near there, because it is nearly 7 arcmin south-southeast of the galaxy listed above. However, Common's description of the region near his discovery, "Faint, round, following 3 stars in a line [with orientation] 90� pointing to another fainter nebula south," only makes sense if NGC 7594 is the brightest galaxy in the region, directly east of IC 5305, so despite Common's horrific error in the position, the galaxy listed above must be the correct NGC 7594.
Modern Misidentifications: The RNGC listed a position corresponding to J2000 RA 23 18 15.8, Dec +10 13 13, about 1.3 arcmin due south of a point nearly midway between IC 5306 and IC 5307, but since there is nothing there, it can only be presumed that the authors of that catalogue felt that one of those two galaxies must be NGC 7594, and rather than make up their mind, just chose a nearly random position between them. The result was that later catalogues (e.g. PGC, HyperLEDA and probably others) assigned NGC 7594 to the westernmost of the two galaxies (IC 5306) near the RNGC position, despite the fact that Common's description of the region should have made that an impossible identification. Fortunately, most online catalogues (NED, SIMBAD, and Corwin's, Gottlieb's, Steinicke's and my site) have corrected that error; but despite that, a search for NGC 7594 is still all-too likely to show IC 5306, instead of the correct galaxy. (E.g., A Wikisky search for IC 1478 shows IC 1478 (labeled as such), but a search for NGC 7594 (which is the same galaxy) shows IC 5306, incorrectly labeled as NGC 7594.)
Physical Information: Based on a recessional velocity of 10850 km/sec, a straightforward calculation indicates that NGC 7594 is about 505 million light years away. However, for objects at such distances, we must take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 485 million light years away (in reasonable agreement with redshift-independent distance estimates of 360 to 460 million light years) at the time the light by which we see it was emitted, about 495 million years ago (the difference between the distance and the light-travel time being due to the expansion of the intervening space during that time). Given its distance and an apparent size of 1.4 by 0.9 arcmin, NGC 7594 is about 200 thousand light years across.
Duplicate Identification: For a discussion of the duplicate listing, see IC 1478.

Historical Identification: Per Dreyer, NGC 7595 (Common (#28), 1860 RA 23 11 28, NPD 80 51) is "faint, stellar".
Physical Information: Apparent size 0.5 by 0.5? arcmin.

Historical Identification: Per Dreyer, NGC 7596 (Leavenworth list I (#262), 1860 RA 23 11, NPD 97 40.8) is "very faint, pretty small, a little extended 0�, a little brighter middle and nucleus".
Physical Information: Apparent size 1.0 by 0.5? arcmin.

Historical Identification: Per Dreyer, NGC 7597 (= GC 6175, Marth #563, 1860 RA 23 11 33, NPD 72 06) is "extremely faint, very small, gradually brighter middle".
Physical Information: Given the duplicate entry, see NGC 7571 for anything else.

Historical Identification: Per Dreyer, NGC 7598 (= GC 6176, Marth #564, 1860 RA 23 11 35, NPD 72 01) is "extremely faint, extremely small, stellar".
Physical Information: Apparent size 0.3 by 0.2? arcmin.

Historical Identification: Per Dreyer, NGC 7599 (= GC 4931 = JH 3981, Dunlop 477 & 2, 1860 RA 23 11 37, NPD 133 01.1) is "faint, pretty large, pretty much extended, gradually brighter middle, eastern of 2", the other being NGC 7590.
Physical Information: A member of the Grus Quartet of spiral galaxies (NGC 7552, 7582, 7590 and 7599; see image of all four at NGC 7552). Given a recessional velocity 1650 km/sec, NGC 7599 is about 75 million light years away, in good agreement with redshift-independent distance estimates of 60 to 75 million light years. Given that and its apparent size of 4.4 by 1.3 arcmin, it is about 100 thousand light years across. NGC 7599 is listed as a member of a group of galaxies in or near Sculptor with recessional velocities of about 1500 to 1800 km/sec (this is not "the" Sculptor Group, a close neighbor to our Local Group, with an average recessional velocity of less than 300 km/sec); so all Grus Quartet members are presumably members of the larger group.