Historical Identification: Per Dreyer, NGC 1700 (= GC 932 = JH 336 = WH IV 32, 1860 RA 04 50 02, NPD 95 05.3) is "considerably bright, small, much brighter starlike middle".
Physical Information: Based on a recessional velocity of 3890 km/sec, NGC 1700 is about 180 million light years away, in fair agreement with redshift-independent distance estimates of 100 to 160 million light years. Given that and its apparent size of 4.1 by 2.4 arcmin, it is about 215 thousand light years across. X-ray images show that the nucleus of the galaxy is surrounded by a nearly 100 thousand light year wide flattened disk of multi-million degree gas rotating in a way that suggests it was formed by the merger of two prior galaxies about 3 billion years ago.

Historical Identification: Per Dreyer, NGC 1701 (= GC 933 = JH 2676, 1860 RA 04 50 25, NPD 120 06.2) is "faint, small, very little extended, gradually a little brighter middle, 10th magnitude star 75 arcsec to southeast".
Physical Information: Apparent size 1.25 by 0.95 arcmin.

Historical Identification: Per Dreyer, NGC 1702 (= GC 934 = JH 2680, Dunlop 73?, 1860 RA 04 50 27, NPD 160 05.5) is a "cluster, very faint, small".
Physical Information: Apparent size 0.08 by 0.075 arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1703 (= GC 935 = JH 2678, 1860 RA 04 50 49,, NPD 149 58.0) is "faint, large, round, very gradually a little brighter middle, double star attached".
Physical Information: Apparent size 3.2 by 3.2 arcmin.

Historical Identification: Per Dreyer, NGC 1704 (= GC 936 = JH 2683, (Dunlop 110), 1860 RA 04 50 54, NPD 159 59.2) is "faint, pretty small, a little extended, mottled but not resolved".
Physical Information: Apparent size 1.6 by 1.5 arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1705 (= GC 937 = JH 2679, 1860 RA 04 51 09, NPD 143 35.2) is "pretty faint, small, round, pretty much brighter middle".
Physical Information: Apparent size 2.3 by 1.7 arcmin.

Historical Identification: Per Dreyer, NGC 1706 (= GC 938 = JH 2682, 1860 RA 04 51 15, NPD 153 13.5) is "faint, pretty small, round, very gradually a little brighter middle". The position precesses to RA 04 52 32.4, Dec -62 59 48, less than 0.7 arcmin south southeast of the galaxy listed above, the description fits and there is nothing else nearby, so the identification is certain.
Physical Information: Based on a recessional velocity of 4890 km/sec (and H₀ = 70 km/sec/Mpc), NGC 1706 is about 225 to 230 million light years away (the HST press release lists a distance of 230 million light years). Given that and its apparent size of about 1.4 by 1.2 arcmin (from the HST image below), it is about 90 to 95 thousand light years across. It is perhaps accompanied by the smaller galaxy (PGC 177963) to its north, but whether there is any actual physical connection between the pair is unknown; despite that, the apparent companion is discussed in the entry following this one.

Designation Note: Although NED lists the galaxy, a search of its database requires the designation LEDA 177963.
Physical Information: No recessional velocity is available for PGC 177963, and although there are hints of some kind of interaction between it and NGC 1706, they are so minor that it cannot be presumed that the two galaxies are actually physical companions. As a result, its apparent size of about 0.4 by 0.2 arcmin (from the image below) cannot be used to estimate a reliable size. However, if it is at a similar distance to that of NGC 1706, it would be about 25 thousand light years across.

Historical Identification: Per Dreyer, NGC 1707 (= GC 939 = JH 338, 1860 RA 04 51 16, NPD 81 58.7) is "small, round, well resolved, clearly consisting of stars".

Historical Identification: Per Dreyer, NGC 1708 (= GC 940 = JH 337, 1860 RA 04 51 32, NPD 37 19.9) is a "cluster, very large, pretty rich, a little compressed, large and small stars".
Physical Information: Apparent size about 20 by 12 arcmin; elongated north south.

Historical Identification: Per Dreyer, NGC 1709 (= GC 944, 3rd Lord Rosse, 1860 RA 04 51 36, NPD 90 41.1) is "very faint, very small, northwest of (WH) II 516", WH II 516 being NGC 1713.
Physical Information: Apparent size 0.95 by 0.7 arcmin.

Historical Identification: Per Dreyer, NGC 1710 (Leavenworth list I (#140), 1860 RA 04 51 40, NPD 105 30.9) is "very faint, very small, round, brighter middle and nucleus, 13th magnitude star involved". The first IC lists a corrected RA (per Ormond Stone) of 04 50 56.
Physical Information: Apparent size 1.25 by 0.8 arcmin.

Historical Identification: Per Dreyer, NGC 1711 (= GC 941 = JH 2684, Dunlop 76?, 1860 RA 04 51 45, NPD 160 13.0) is a "globular cluster, bright, small, irregularly round, well resolved, clearly consisting of stars, stars of magnitude 14".
Physical Information: Apparent size about 2.2 by 2.2 arcmin. In the Large Magellanic Cloud

Historical Identification: Per Dreyer, NGC 1712 (= GC 942 = JH 2685, (Dunlop 112), 1860 RA 04 51 46, NPD 159 39.8) is a "cluster, pretty bright, small".
Physical Information: Apparent size about 4.0 by 3.5 arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1713 (= GC 943 = JH 339 = WH II 516, 1860 RA 04 51 47, NPD 90 41.7) is "faint, small, round, brighter middle".
Physical Information: Apparent size 2.7 by 1.8 arcmin.

Historical Identification: Per Dreyer, NGC 1714 (= GC 945 = JH 2686, 1860 RA 04 52 00, NPD 157 08.9) is "very bright, small, extended or bi-nuclear, brighter middle, southwestern of 2", the other being NGC 1715.
Physical Information: Apparent size about 1.6 by 1.0 arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1715 (= GC 946 = JH 2687, 1860 RA 04 52 03, NPD 157 07.8) is "very faint, small, round, suddenly brighter middle, 2 stars near, northeastern of 2", the other being NGC 1714, which see for images.
Physical Information: Apparent size about 1.1 by 0.85 arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1716 (= GC 947 = JH 2681, 1860 RA 04 52 16, NPD 110 34.7) is "pretty faint, pretty large, round, gradually a little brighter middle".
Physical Information: Apparent size 1.4 by 1.2? arcmin.

Historical Identification: Per Dreyer, NGC 1717 (= GC 949, 3rd Lord Rosse, 1860 RA 04 52�, NPD 90 28) is "northwest of h 340 (perhaps a faint star?)", (JH) 340 being NGC 1719.
Physical Information: Given the duplicate entry, see NGC 1709 for anything else.

Historical Identification: Per Dreyer, NGC 1718 (= GC 950 = JH 2688, 1860 RA 04 52 20, NPD 157 16.7) is "faint, pretty small, round, very gradually a little brighter middle".
Physical Information: Apparent size 2.0? arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1719 (= GC 948 = JH 340, d'Arrest, 1860 RA 04 52 26, NPD 90 27.9) is "pretty faint, small, irregularly round, pretty suddenly a little brighter middle".
Physical Information: Apparent size 1.1 by 0.3? arcmin.

Historical Identification: Per Dreyer, NGC 1720 (= GC 951, d'Arrest, 1860 RA 04 52 37, NPD 98 04.0) is "pretty faint, pretty large, a little brighter middle, h 341 near", (JH) 341 being NGC 1726.
Physical Information: Apparent size 2.0 by 1.2? arcmin.

Historical Identification: Per Dreyer, NGC 1721 (Barnard, Swift list III (#32), 1860 RA 04 52 40, NPD 101 20.6) is "very faint, very small, round".
Physical Information: Based on a recessional velocity of 4500 km/sec, NGC 1721 is about 210 million light years away. However, it is the namesake of the NGC 1721 group of galaxies, all the other members of which have Hubble distances close to 180 million light years; so it is probably closer to that distance, and simply moving away from the other group members at several hundred km/sec (such peculiar velocities are not that unusual, even in small groups). Given that and its apparent size of 2.1 by 1.5 arcmin, it is about 110 thousand light years across (this includes the large ringlike structure surrounding the core of the galaxy, presumably caused by gravitational or collisional interaction with its companions). The NGC 1721 Group consists of NGC 1721, 1723, 1725 and 1728.

Historical Identification: Per Dreyer, NGC 1722 (= GC 952 = JH 2689, (Dunlop 112), 1860 RA 04 52 42, NPD 159 37.2) is a "cluster, pretty faint, small, round, 2nd of 3".
Physical Information: Apparent size 1.0? arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1723 (Tempel list V (#3), Barnard, 1860 RA 04 52 50, NPD 101 11.5) is "faint, between two 9th magnitude stars, 10th magnitude stars north and south, 3rd star to east".
Physical Information: Based on a recessional velocity of 3740 km/sec, NGC 1723 is about 175 million light years away, in poor agreement with a single redshift-independent distance estimate of 105 million light years. Presuming the larger distance is more accurate, its apparent size of 3.6 by 2.5 arcmin suggests that it is about 180 thousand light years across. NGC 1723 is believed to be a member of the NGC 1721 Group (most of whose members have recessional velocities and Hubble expansion distances comparable to those of NGC 1723), consisting of NGC 1721, 1723, 1725 and 1728.

Historical Identification: Per Dreyer, NGC 1724 (= GC 5347, George R�mker, 1860 RA 04 52 53, NPD 40 42.4) is a "cluster, very small, stars plus nebula?".
Physical Information: Apparent size 1.0? arcmin.

Historical Identification: Per Dreyer, NGC 1725 (= Barnard, Swift list III (#33), 1860 RA 04 52 55, NPD 101 20.9) is "extremely faint, very small, round". The first IC adds (per Burnham) that the seconds of RA should be 46.
Physical Information: Based on a recessional velocity of 3885 km/sec, NGC 1725 is about 180 million light years away. Given that and its 1.2 by 1.0? arcmin apparent size, it is about 65 thousand light years across. It is part of the NGC 1721 Group, consisting of NGC 1721, 1723, 1725 and 1728.

Historical Identification: Per Dreyer, NGC 1726 (= GC 953 = JH 341, 1860 RA 04 52 59, NPD 97 58.0) is "faint, round, 13th magnitude star to south".
Physical Information: Apparent size 1.7 by 1.4? arcmin.

Historical Identification: Per Dreyer, NGC 1727 (= GC 954 = JH 2690, (Dunlop 113), 1860 RA 04 53 01, NPD 159 34.1) is a "cluster, pretty bright, pretty small, pretty much extended, stars of 12th magnitude".
Physical Information: Apparent size 2.5? arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1728 (Barnard, Swift list III (#34), 1860 RA 04 53 05, NPD 101 20.6) is "very faint, very small, round". The first IC lists a corrected RA (per Burnham) of 04 52 51.
Physical Information: Based on a recessional velocity of 3765 km/sec, NGC 1728 is about 175 million light years away. Given that and its 2.0 by 0.7? arcmin apparent size, it is about 100 thousand light years across. NGC 1728 is part of the NGC 1721 Group, consisting of NGC 1721, 1723, 1725 and 1728.

Historical Identification: Per Dreyer, NGC 1729 (= GC 955 = WH III 503, d'Arrest, (Swift list ?? #??), 1860 RA 04 53 13, NPD 93 35.1) is "very faint, pretty large, 2 bright stars very near".
Physical Information: Apparent size 1.7 by 1.4? arcmin.

Historical Identification: Per Dreyer, NGC 1730 (Swift list V (#??), Ormond Stone list I, 1860 RA 04 53 13, NPD 106 02.1) is "faint, pretty small, a little extended, between 2 faint stars (per Ormond Stone, a double nebula of 10 arcsec separation)" (Stone's paper lists the supposed double nebula as #141 and #142, and gives a position angle of 110� between them).
Discovery Notes: Stone published the list referred to by Dreyer, but in it he gives credit for the actual observation to Leavenworth.
Physical Information: Apparent size 2.3 by 1.0? arcmin.

Historical Identification: Per Dreyer, NGC 1731 (= GC 956 = JH 2691, 1860 RA 04 53 23, NPD 157 08.6) is a "cluster, pretty large, a little rich, a little compressed, stars from 10th to 15th magnitude".
Physical Information: Apparent size 8.0? arcmin. In the Large Magellanic Cloud? or a foreground object?

Historical Identification: Per Dreyer, NGC 1732 (= GC 957 = JH 2694, 1860 RA 04 53 43, NPD 158 52.4) is "small, round, close double star in middle".
Physical Information: Apparent size 0.9? arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1733 (= GC 958 = JH 2693, 1860 RA 04 53 49, NPD 156 53.7) is "extremely faint, pretty small, round, gradually brighter middle".
Physical Information: Apparent size 1.2? arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1734 (= GC 959 = JH 2695, 1860 RA 04 54 08, NPD 158 59.3) is "pretty bright, large, round, gradually much brighter middle".
Physical Information: Apparent size 1.3? arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1735 (= GC 960 = JH 2696, 1860 RA 04 54 19, NPD 157 18.9) is "pretty faint, pretty small, round, 2 stars attached".
Physical Information: Apparent size 1.6? arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1736 (= GC 961 = JH 2697, 1860 RA 04 54 19, NPD 158 17.3) is "bright, round, mottled but not resolved".
Physical Information: In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1737 (= GC 962 = JH 2698, 1860 RA 04 54 32, NPD 159 24.2) is "very faint, small, 1st of 4", the 2nd being NGC 1743.
Physical Information: In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1738 (Ormond Stone list I (#143), 1860 RA 04 54 40, NPD 108 21.8) is "very faint, small, extended 45�". The second IC lists a corrected RA (per Howe) of 04 55 36.
Physical Information: Apparent size 1.3 by 0.7? arcmin. Part of a physical pair with NGC 1739.

Historical Identification: Per Dreyer, NGC 1739 (Ormond Stone list I (#144), 1860 RA 04 54 40, NPD 108 21.8) is "extremely faint, very small, a little extended, in field with last", the last being NGC 1738. The second IC lists a corrected RA (per Howe) of 04 55 37.
Physical Information: Apparent size 1.4 by 0.8? arcmin. Part of a physical pair with NGC 1738 (which see for images).

Historical Identification: Per Dreyer, NGC 1740 (= GC 965 = JH 342, d'Arrest, 1860 RA 04 54 41, NPD 93 30.8) is "extremely faint, very small, 12th magnitude star to southwest".
Physical Information: Apparent size 1.5 by 1.2? arcmin.

Historical Identification: Per Dreyer, NGC 1741 (Stephan list IX (#5), 1860 RA 04 54 43, NPD 94 27.9) is "very faint, very small, very small excentric part involved", the last comment suggesting that Stephan was able to sense the complex nature of the object.
Physical Information: Apparent size of PGC 16570 is 0.55 by 0.15 arcmin; of PGC 16574 is 0.95 by 0.6 arcmin.

Historical Identification: Per Dreyer, NGC 1742 (= GC 5348, Ball (using Lord Rosse's Leviathan), 1860 RA 04 54 45, NPD 93 30.4) is "very faint, very small, 3.6 seconds of time to the east of h 342", (JH) 342 being NGC 1740.

Historical Identification: Per Dreyer, NGC 1743 (= GC 963 = JH 2699, Dunlop 114, 1860 RA 04 54 49, NPD 159 25.3) is "bright, pretty large, round, gradually brighter middle, mottled but not resolved, 2nd of 4", the 1st and 3rd being NGC 1737 and 1745.
Physical Information: Apparent size 2.0 by 2.0? arcmin. In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1744 (= GC 964 = JH 2692, 1860 RA 04 54 51, NPD 116 14.6) is "faint, very large, very much extended, very gradually very little brighter middle". The second IC lists a corrected RA (per Howe) of 04 54 14.
Physical Information: Apparent size 8.1 by 4.4 arcmin.

Historical Identification: Per Dreyer, NGC 1745 (= GC 966 = JH 2702, 1860 RA 04 55 08, NPD 159 23.2) is "faint, small, 3rd of 4", the 2nd and 4th being NGC 1743 and 1748.
Physical Information: In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1746 (= GC 5349, d'Arrest, 1860 RA 04 55 09, NPD 66 24.2) is a "cluster, poor".
Physical Information: Apparent size 40? arcmin. NGC 1746 is closely associated with NGC 1750, and may be the same object under a different name (although Steinicke states that NGC 1750 is not a cluster). As a result, see NGC 1750 for a discussion of their relationship and images of the region containing the objects (the next iteration of these pages will reassess the historical evidence and may slightly alter the discussion).

Historical Identification: Per Dreyer, NGC 1747 (= GC 967 = JH 2701, 1860 RA 04 55 13, NPD 157 23.5) is a "cluster, pretty small, a little rich, stars very small".
Physical Information: In the Large Magellanic Cloud? or a foreground object?

Historical Identification: Per Dreyer, NGC 1748 (= GC 968 = JH 2704, (Dunlop 114), 1860 RA 04 55 14, NPD 159 25.1) is "pretty bright, very small, round, 4th of 4", the 3rd being NGC 1745.
Physical Information: In the Large Magellanic Cloud.

Historical Identification: Per Dreyer, NGC 1749 (= GC 969 = JH 2703, 1860 RA 04 55 17, NPD 158 24.4) is "very faint, round, preceding (western) of 2," the other being NGC 1755.
Discovery Note: Per Gottlieb, Barrachi observed this object and NGC 1755 (using the 48-inch Great Melbourne Telescope) on the date shown above, but (perhaps because earlier positions weren't terribly good) Baracchi simply noted that he couldn't find them in any catalogue, and didn't bother to publish his observations.
Note About PGC Designation: As for most NGC objects, HyperLEDA assigned a PGC designation (and partial page) to NGC 1749, even though it isn't a galaxy; but a search of the database for that designation returns no result, so it is shown in quotes.
Physical Information: Apparent size 1.2? arcmin (LEDA).