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1800, 1801, 1802, 1803, 1804, 1805, 1806, 1807, 1808, 1809, 1810, 1811, 1812, 1813, 1814, 1815, 1816,
1817, 1818, 1819, 1820, 1821, 1822, 1823, 1824, 1825, 1826, 1827, 1828, 1829, 1830, 1831, 1832, 1833,
1834, 1835, 1836, 1837, 1838, 1839, 1840, 1841, 1842, 1843, 1844, 1845, 1846, 1847, 1848, 1849
Page last updated May 15, 2011
WORKING: Add positions/physical data (per Steinicke)
IC 1800
Discovered (Dec 22, 1897) by Guillaume Bigourdan (373)
IC 1801
Discovered (Dec 27, 1897) by Stephane Javelle (926)
IC 1802 (= PGC 9462)
Discovered (late 1890's?) by Edward Barnard
A 13th-magnitude lenticular galaxy (type S0?) in Aries (RA 02 29 13.9, Dec +23 05 00)
(Note: Wikisky erroneously labels the galaxy as IC 1803. It also erroneously shows PGC 462, instead of PGC 9462 -- a common truncation error. As a result, the coordinates have to be used to see the correct object.)
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Above, a 2.4 arcmin wide closeup of IC 1802 and "nearby" galaxies PGC 1681200 and 1681391
Below, a 12 arcmin wide region centered on the galaxy; also shown is IC 1803
IC 1803
Discovered (late 1890's?) by Edward Barnard
A 15th-magnitude compact galaxy (type C) in Aries (RA 02 29 17.2, Dec +23 08 27)
(Note: A Wikisky search for IC 1803 erroneously shows IC 1802. As a result, the coordinates have to be used to see the correct object.)
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Above, a 2.4 arcmin wide closeup of IC 1803
Below, a 12 arcmin wide region centered on the galaxy; also shown is IC 1802
IC 1804
Discovered (late 1890's?) by Edward Barnard
IC 1805 (= OCL 352; associated with the Heart Nebula)
Discovered (late 1890's?) by Edward Barnard
A 7th-magnitude open cluster and surrounding nebulosity in Cassiopeia (RA 02 32 48.0, Dec +61 27 42)
Strictly speaking, the IC object is the open cluster which illuminates the nebula, as the nebulosity was not as easily observable in the 1800's. Today, however, the advent of CCD cameras and computer-aided imaging has made the nebulosity better known than the cluster which lights it up, especially since it and a nearby nebulosity were dubbed the "Heart and Soul Nebulae" (causing them to be featured on astronomy websites near Valentine's Day).
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Above, a 12 arcmin wide region centered on the open cluster IC 1805
Below, a 30 arcmin wide view of the cluster and surrounding nebulosity
Below, a 2.5 degree wide view of the cluster (just above center) and surrounding nebulosity
Below, a 5 degree wide view of the Heart and Soul Nebulae associated with IC 1805 and 1848
Below, a WISE infrared view of the Heart Nebula and its associated clusters
Below, a WISE infrared view of the Heart Nebula and (to its left) the Soul Nebula
(Credit for the WISE images above and below: NASA/JPL-Caltech/UCLA, Photojournal)
IC 1806
Discovered (Jan 16, 1896) by Stephane Javelle (927)
IC 1807
Discovered (Jan 16, 1896) by Stephane Javelle (928)
IC 1808 (= NGC 963)
Discovered (1886) by Francis Leavenworth (and later listed as NGC 963)
Discovered (Dec 14, 1903) by Stephane Javelle (929) (and later listed as IC 1808)
IC 1809
Discovered (Jan 16, 1896) by Stephane Javelle (930)
IC 1810
Discovered (1901) by DeLisle Stewart (160)
IC 1811
Discovered (Dec 22, 1897) by Lewis Swift (XI-38)
IC 1812
Discovered (1901) by DeLisle Stewart (161)
IC 1813
Discovered (Dec 22, 1897) by Lewis Swift (XI-39)
IC 1814 (= NGC 964)
Discovered (Sep 1, 1834) by John Herschel (and later listed as NGC 964)
Discovered (Dec 22, 1897) by Lewis Swift (XI-40) (and later listed as IC 1814)
IC 1815
Discovered (Jan 20, 1898) by Stephane Javelle (931)
IC 1816
Discovered (Oct 12, 1896) by Lewis Swift (XI-41)
IC 1817
Discovered (Jan 4, 1896) by Stephane Javelle (932)
IC 1818
Discovered (Jan 6, 1899) by Herbert Howe (2)
IC 1819
Discovered (Dec 18, 1897) by Stephane Javelle (933)
IC 1820
Discovered (Dec 21, 1903) by Stephane Javelle (934)
IC 1821
Discovered (Aug 1, 1895) by Stephane Javelle (935)
IC 1822
Discovered (Dec 22, 1894) by Guillaume Bigourdan (252)
IC 1823
Discovered (Jan 20, 1898) by Stephane Javelle (936)
IC 1824 (= NGC 1027)
Discovered (Nov 3, 1787) by William Herschel (and later listed as NGC 1027)
Discovered (late 1890's?) by Edward Barnard (and later listed as IC 1824)
IC 1825
Discovered (Jan 29, 1897) by Stephane Javelle (937)
IC 1826 (= IC 1830)
Discovered (Sep 6, 1897) by Lewis Swift (XI-42) (and later listed as IC 1826)
Discovered (1901) by DeLisle Stewart (and later listed as IC 1830)
IC 1827
Discovered (Dec 21, 1903) by Stephane Javelle (938)
IC 1828 (= NGC 1036)
Discovered (Nov 29, 1785) by William Herschel (and later listed as NGC 1036)
Discovered (Jan 18, 1898) by Stephane Javelle (939) (and later listed as IC 1828)
IC 1829
Discovered (Jan 7, 1896) by Stephane Javelle (940)
IC 1830 (= IC 1826)
Discovered (Sep 6, 1897) by Lewis Swift (and later listed as IC 1826)
Discovered (1901) by DeLisle Stewart (162) (and later listed as IC 1830)
IC 1831
Discovered (1906) by Max Wolf
IC 1832
Discovered (Jan 17, 1898) by Stephane Javelle (941)
IC 1833
Discovered (Dec 22, 1897) by Lewis Swift (XI-43)
IC 1834
Discovered (Nov 21, 1903) by Stephane Javelle (942)
IC 1835
Discovered (Jan 7, 1897) by Stephane Javelle (943)
IC 1836
Discovered (Jan 29, 1894) by Stephane Javelle (944)
IC 1837 (= NGC 1072)
Discovered (Dec 20, 1881) by Édouard Stephan (and later listed as NGC 1072)
Discovered (Jan 24, 1898) by Stephane Javelle (945) (and later listed as IC 1837)
IC 1838
Discovered (Jan 18, 1898) by Stephane Javelle (946)
IC 1839
Discovered (Jan 7, 1896) by Stephane Javelle (947)
IC 1840 (= NGC 1105)
Discovered (Dec 2, 1885) by Francis Leavenworth (and later listed as NGC 1105)
Discovered (Jan 30, 1900) by Herbert Howe (7) (and later listed as IC 1840)
IC 1841
Discovered (Jan 11, 1898) by Stephane Javelle (948)
IC 1842
Discovered (Dec 22, 1897) by Stephane Javelle (949)
IC 1843
Discovered (Dec 18, 1897) by Stephane Javelle (950)
IC 1844
Discovered (Dec 18, 1897) by Stephane Javelle (951)
IC 1845
Discovered (Dec 22, 1897) by Lewis Swift (XI-44)
IC 1846 (= NGC 1109 ?)
Possibly discovered (Dec 2, 1863) by Albert Marth (and later listed as NGC 1109)
Discovered (Jan 7, 1896) by Stephane Javelle (952) (and later listed as IC 1846)
IC 1847
Discovered (Jan 7, 1896) by Stephane Javelle (953)
IC 1848 (= OCL 364; associated with the Soul Nebula)
Discovered (late 1890's?) by Edward Barnard
A 7th-magnitude open cluster and associated nebulosity in Cassiopeia (RA 02 51 18.0, Dec +60 24 30)
Strictly speaking, as in the case of IC 1805 (which see), the IC object is the open cluster which illuminates the nebula, as the nebulosity was not as easily observable in the 1800's. Today, however, the advent of CCD cameras and computer-aided imaging has made the nebulosity better known than the cluster which lights it up, especially since it and a nearby nebulosity were dubbed the "Heart and Soul Nebulae" (causing them to be featured on astronomy websites near Valentine's Day).
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Above, a 12 arcmin wide region centered on the open cluster IC 1848
Below, a 30 arcmin wide view of the cluster and surrounding nebulosity
Below, a 2.5 degree wide view of the cluster (right of center) and surrounding nebulosity
Below, a 5 degree wide view of the Heart and Soul Nebulae associated with IC 1848 and 1805
Below, a WISE infrared view of the Soul Nebula associated with IC 1848
Below, a WISE infrared view of the Soul Nebula and (to its right) the Heart Nebula
(Credit for the WISE images above and below: NASA/JPL-Caltech/UCLA, Photojournal)
IC 1849
Discovered (Jan 29, 1897) by Stephane Javelle (954)
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