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1717, 1718, 1719, 1720, 1721, 1722, 1723, 1724, 1725, 1726, 1727, 1728, 1729, 1730, 1731, 1732, 1733,
1734, 1735, 1736, 1737, 1738, 1739, 1740, 1741, 1742, 1743, 1744, 1745, 1746, 1747, 1748, 1749
Page last updated Jul 24, 2011
WORKING: Add positions/physical data (per Steinicke)
NGC 1700 (= PGC 16386)
Discovered (Oct 5, 1785) by William Herschel
An 11th-magnitude elliptical galaxy (type E4) in Eridanus (RA 04 56 56.2, Dec -04 51 55)
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 150 million light years. Given that and its apparent size of 3.3 by 2.1 arcmin, it is about 170 thousand light years across. Listed in NED as a member of a pair. |
Above, a 3.6 arcmin wide closeup of NGC 1700
Below, a 12 arcmin wide region centered on the galaxy
NGC 1701
Discovered (Nov 6, 1834) by John Herschel
NGC 1702
Possibly observed (Aug 3, 1826) by James Dunlop (73?)
Discovered (Nov 11, 1836) by John Herschel
NGC 1703
Discovered (Dec 4, 1834) by John Herschel
NGC 1704
Discovered (1826) by James Dunlop (110)
NGC 1705
Discovered (Dec 5, 1834) by John Herschel
NGC 1706
Discovered (Dec 25, 1837) by John Herschel
NGC 1707 (= IC 2107)
Discovered (Jan 8, 1828) by John Herschel (and later listed as NGC 1707)
Discovered (Dec 25, 1899) by Guillaume Bigourdan (and later listed as IC 2107)
NGC 1708
Discovered (Feb 16, 1831) by John Herschel
NGC 1709 (= NGC 1717)
Discovered (Jan 15, 1849) by George Stoney (and later listed as NGC 1717)
Discovered (Dec 8, 1854) by R. J. Mitchell (and later listed as NGC 1709)
NGC 1710 (= IC 2108)
Discovered (Nov 14, 1885) by Francis Leavenworth (I-140) (and later listed as NGC 1710)
Discovered (Dec 9, 1896) by Guillaume Bigourdan (and later listed as IC 2108)
The first IC lists a corrected RA (per Ormond Stone) of 04 50 56.
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NGC 1711
Discovered (Aug 3, 1826) by James Dunlop (73, 76)
NGC 1712
Discovered (Sep 24, 1826) by James Dunlop (111)
NGC 1713
Discovered (Jan 1, 1786) by William Herschel
NGC 1714
Discovered (Nov 2, 1834) by John Herschel
NGC 1715
Discovered (Nov 2, 1834) by John Herschel
NGC 1716
Discovered (Dec 11, 1835) by John Herschel
NGC 1717 (= NGC 1709)
Discovered (Jan 15, 1849) by George Stoney (and later listed as NGC 1717)
Discovered (Dec 8, 1854) by R. J. Mitchell (and later listed as NGC 1709)
NGC 1718
Discovered (Nov 2, 1834) by John Herschel
NGC 1719
Discovered (Nov 23, 1827) by John Herschel
NGC 1720
Discovered (Dec 30, 1861) by Heinrich d'Arrest
NGC 1721
Discovered (Nov 10, 1885) by Edward Barnard
NGC 1722
Discovered (Sep 24, 1826) by James Dunlop (112)
NGC 1723
Discovered (Jan 12, 1882) by Wilhelm Tempel (V-3)
NGC 1724
Discovered (Apr 30, 1864) by George Rümker
NGC 1725
Discovered (Nov 10, 1885) by Edward Barnard
The first IC states (per Burnham) that the seconds of RA should be 46.
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NGC 1726
Discovered (Jan 8, 1831) by John Herschel
NGC 1727
Discovered (1826) by James Dunlop (113)
NGC 1728
Discovered (Nov 10, 1885) by Edward Barnard
The first IC lists a corrected RA (per Burnham) of 04 52 51.
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NGC 1729
Discovered (Feb 1, 1786) by William Herschel
NGC 1730 (= IC 2113)
Discovered (Nov 14, 1885) by Francis Leavenworth (I-141, I-142) (and later listed as NGC 1730)
Discovered (1890's?) by Edward Barnard (and later listed as IC 2113)
NGC 1731
Discovered (Dec 23, 1834) by John Herschel
NGC 1732
Discovered (Nov 23, 1834) by John Herschel
NGC 1733
Discovered (Jan 3, 1837) by John Herschel
NGC 1734
Discovered (Nov 23, 1834) by John Herschel
NGC 1735
Discovered (Nov 2, 1834) by John Herschel
NGC 1736
Discovered (Dec 30, 1836) by John Herschel
NGC 1737
Discovered (Nov 11, 1836) by John Herschel
NGC 1738
Discovered (Dec 11, 1885) by Ormond Stone (I-143)
The second IC lists a corrected RA (per Howe) of 04 55 36.
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NGC 1739
Discovered (Dec 11, 1885) by Ormond Stone (I-144)
The second IC lists a corrected RA (per Howe) of 04 55 37.
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NGC 1740
Discovered (Feb 11, 1830) by John Herschel
NGC 1741
Discovered (Jan 6, 1878) by Édouard Stephan (9-5)
NGC 1742
Discovered (Dec 29, 1866) by Robert Ball
NGC 1743
Discovered (Aug 3, 1826) by James Dunlop (114)
NGC 1744
Discovered (Nov 20, 1835) by John Herschel
The second IC lists a corrected RA (per Howe) of 04 54 14.
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NGC 1745
Discovered (Nov 11, 1836) by John Herschel
NGC 1746 (? = NGC 1750)
Perhaps observed (Dec 26, 1785) by William Herschel (and later listed as NGC 1750)
Discovered (Nov 9, 1863) by Heinrich d'Arrest (and later listed as NGC 1746)
A 6th-magnitude open cluster in Taurus (RA 05 03 50, Dec +23 46 04)
NGC 1746 is closely associated with NGC 1750, and may be the same object under a different name. As a result, see NGC 1750 for a discussion of their relationship, images of the region containing the clusters, and a "map" of their relative positions. |
NGC 1747
Discovered (Nov 2, 1834) by John Herschel
NGC 1748 (= IC 2114)
Discovered (Nov 11, 1836) by John Herschel (and later listed as NGC 1748)
Discovered (1901) by Williamina Fleming (and later listed as IC 2114)
NGC 1749
Discovered (Dec 30, 1836) by John Herschel
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