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767, 768, 769, 770, 771, 772, 773, 774, 775, 776, 777, 778, 779, 780, 781, 782, 783,
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Page last updated Aug 6, 2011
WORKING: Add positions/physical data (per Steinicke)
NGC 750 (= PGC 7369)
Discovered (Sep 12, 1784) by William Herschel
A 12th-magnitude elliptical galaxy (type E pec) in Triangulum (RA 01 57 33, Dec +33 12 33)
Paired with NGC 751. Based on recessional velocity of 5170 km/sec, about 230 million light years away, in fair agreement with a redshift-independent distance estimates of 170 to 180 million light years, but in exact agreement with recessional velocity distance estimates for its companion, NGC 751. Given that and its apparent size of 1.7 by 1.3 arcmins, about 110 thousand light years in diameter. |
Above, a closeup of NGC 750 and 751
Below, an approximately 15 arcmin wide region centered on the galaxies |
NGC 751 (= PGC 7370)
Discovered (Oct 11, 1850) by Bindon Stoney
A 12th-magnitude elliptical galaxy (type E pec) in Triangulum (RA 01 57 33, Dec +33 12 11)
Based on recessional velocity of 5150 km/sec, about 230 million light years away, in exact agreement with the recessional velocity distance estimate for its companion. Given that and apparent size of 1.4 by 1.4 arcmins, about 90 thousand light years in diameter. Paired with NGC 750, which see for images of the galaxies.
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NGC 752
Discovered (before 1654) by Guillermo Hodierna
Discovered (September 29, 1783?) by Caroline Herschel
A 6th-magnitude open cluster in Andromeda (RA 01 57 35.0, Dec +37 50 00)
Per Dreyer, NGC 752 (= John Herschel's GC 457, 1860 RA 01 49 26, NPD 53 01.2) is "cluster, very very large, rich, stars large and scattered". (Note: See the discussion of Hodierna for an explanation of why he was not credited with the discovery of any NGC object.) The position precesses to RA 01 57 44.1, Dec +37 39 57, about 10 arcmin south of the center of the cluster, but well within its 75 arcmin diameter, so the identification is certain. The cluster is about 1300 light years away, and given its apparent size, about 30 light years across. |
Above, a 75 arcmin wide image of NGC 752
NGC 753
Discovered (Sep 16, 1865) by Heinrich d'Arrest
NGC 754
Discovered (Oct 27, 1834) by John Herschel
NGC 755 (= NGC 763)
Discovered (Jan 10, 1785) by William Herschel (and later listed as NGC 755)
Discovered (1886) by Ormond Stone (and later listed as NGC 763)
NGC 756
Discovered (Nov 9, 1885) by Francis Leavenworth (I-42)
The second Index Catalog lists a corrected RA (per Howe) of 01 47 45
NGC 757 (= NGC 731)
Discovered (Jan 10, 1785) by William Herschel (and later listed as NGC 731)
Discovered (1886) by Ormond Stone (I-43) (and later listed as NGC 757)
NGC 758
Discovered (1886) by Francis Leavenworth (II-322)
NGC 759
Discovered (Sep 17, 1865) by Heinrich d'Arrest
NGC 760
Discovered (Dec 19, 1873) by Ralph Copeland
NGC 761
Discovered (Oct 11, 1850) by Bindon Stoney
NGC 762
Discovered (Nov 22, 1785) by William Herschel
NGC 763 (= NGC 755)
Discovered (Jan 10, 1785) by William Herschel (and later listed as NGC 755)
Discovered (1886) by Ormond Stone (I-44) (and later listed as NGC 763)
NGC 764
Discovered (Jan 6, 1886) by Ormond Stone (I-45)
NGC 765
Discovered (Oct 8, 1864) by Albert Marth (52)
NGC 766
Discovered (Jan 8, 1828) by John Herschel
NGC 767
Discovered (1886) by Francis Leavenworth (II-323)
NGC 768
Discovered (Dec 2, 1885) by Lewis Swift (3-8)
NGC 769
Discovered (Nov 9, 1866) by Truman Safford (Safford 68)
NGC 770
Discovered (Nov 3, 1855) by R. J. Mitchell
NGC 771 = 50 Cassiopeia
Discovered (Oct 29, 1831) by John Herschel
NGC 772 (= PGC 7525 = Arp 78)
Discovered (Nov 29, 1785) by William Herschel
A 10th-magnitude spiral galaxy (type Sb) in Aries (RA 01 59 19.5, Dec +19 00 27)
Apparent size about 7.2 by 4.3 arcmin.
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Above, a 7.2 arcmin wide view of NGC 772, enhanced to show its outer arm; also shown is NGC 770
Below, a similar view without the enhancement (Image Credits: Adam Block/NOAO/AURA/NSF)
Below, a 16 arcmin wide region centered on the galaxy shows clouds surrounding it and its satellite
NGC 773
Discovered (Nov 27, 1785) by William Herschel
NGC 774
Discovered (Oct 16, 1784) by William Herschel
NGC 775
Discovered (Nov 14, 1835) by John Herschel
NGC 776
Discovered (Dec 2, 1861) by Heinrich d'Arrest
NGC 777
Discovered (Sep 12, 1784) by William Herschel
NGC 778
Discovered (Nov 5, 1866) by Truman Safford (Safford 64)
NGC 779
Discovered (Sep 10, 1785) by William Herschel
NGC 780
Discovered (Oct 26, 1786) by William Herschel
NGC 781
Discovered (Oct 16, 1784) by William Herschel
NGC 782
Discovered (Oct 27, 1834) by John Herschel
NGC 783 (= IC 1765)
Discovered (Sep 22, 1871) by Édouard Stephan (8-8) (and later listed as NGC 783)
Discovered (1890's?) by Edward Barnard (and later listed as IC 1765)
NGC 784
Discovered (Sep 20, 1865) by Heinrich d'Arrest
NGC 785 (= IC 1766)
Discovered (Oct 25, 1876) by Édouard Stephan (8-9) (and later listed as NGC 785)
Discovered (1890's?) by Edward Barnard (and later listed as IC 1766)
NGC 786
Discovered (Sep 26, 1865) by Heinrich d'Arrest
NGC 787
Discovered (Feb 27, 1865) by Christian Peters
NGC 788
Discovered (Sep 10, 1785) by William Herschel
NGC 789
Discovered (Aug 24, 1865) by Heinrich d'Arrest
NGC 790
Discovered (Sep 10, 1785) by William Herschel
NGC 791
Discovered (Dec 3, 1861) by Heinrich d'Arrest
NGC 792
Discovered (Sep 7, 1828) by John Herschel
NGC 793
Discovered (1886) by Gerhard Lohse
NGC 794 (= IC 191 = PGC 7763)
Discovered (Oct 15, 1784) by William Herschel (and later listed as NGC 794)
"Discovered" (Oct 20, 1889) by Lewis Swift (and later recorded as IC 191)
A 13th-magnitude lenticular galaxy (type S0) in Aries (RA 02 02 29, Dec +18 22 22)
(See IC 191 for a discussion of the double listing.) Based on recessional velocity of 8225 km/sec, about 365 million light years away. Given that and apparent size of 1.3 by 1.1 arcmin, about 140 thousand light years across. |
Above, a 1.5 arcmin wide closeup of NGC 794
Below, a 12 arcmin wide region centered on the galaxy
(The linear artifacts in the wide-field view will be removed in a later iteration of this page) |
NGC 795
Discovered (Oct 27, 1834) by John Herschel
NGC 796
Discovered (Sep 18, 1835) by John Herschel
NGC 797
Discovered (Sep 21, 1786) by William Herschel
NGC 798
Discovered (Dec 10, 1871) by Édouard Stephan (3-4)
NGC 799 = (PGC 7741)
Discovered (Oct 9, 1885) by Lewis Swift (2-16)
A 13th-magnitude barred spiral galaxy (type (R)SB(s)a) in Cetus (RA 02 02 12, Dec -00 06 02)
The second Index Catalog lists a corrected 1860 RA (per Howe) of 01 55 03 and adds "nucleus 13th magnitude". Paired with NGC 800. Based on a recessional velocity of 5915 km/sec, NGC 799 is about 275 million light years away. Given that and its apparent size of 1.66 by 1.28 arcmins, it is about 135 thousand light years across.
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Above, a closeup of NGC 799
Below, an approximately 15 arcmin wide region centered on NGC 799 and NGC 800 |
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