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617, 618, 619, 620, 621, 622, 623, 624, 625, 626, 627, 628, 629, 630, 631, 632, 633,
634, 635, 636, 637, 638, 639, 640, 641, 642, 643, 644, 645, 646, 647, 648, 649
Page last updated Jul 23, 2011
WORKING: Add/update positions/physical descriptions (per Steinicke)
NGC 600
Discovered (Sep 10, 1785) by William Herschel
NGC 601
Discovered (1886) by Frank Muller (II-311)
NGC 602
Discovered (Aug 1, 1826) by James Dunlop (#17)
A 5-million-year old open cluster in the Small Magellanic Cloud
The upper picture shows the cluster and its immediate environs.
The lower picture shows a wider HST view of the region, including a number of distant galaxies.
(NASA, ESA, and the Hubble Heritage Team (STScI / AURA) - ESA/Hubble Collaboration, apod100403)
NGC 603
Discovered (Nov 16, 1850) by Bindon Stoney
The second Index Catalog notes "On two plates of Messier 33 by Dr. Roberts I could only see an extremely faint star in this place".
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NGC 604
Discovered (Sep 11, 1784) by William Herschel
NGC 605
Discovered (Oct 21, 1881) by Édouard Stephan (12-18)
NGC 606
Discovered (Oct 18, 1881) by Édouard Stephan (12-16)
NGC 607
Discovered (Aug 23, 1855) by Heinrich d'Arrest
The first Index Catalog notes "This star is not nebulous, but has a 14th-magnitude star close south, looking at first sight like a nebulous appendage (per Spitaler)".
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NGC 608
Discovered (Nov 22, 1827) by John Herschel
NGC 609
Discovered (Aug 9, 1863) by Heinrich d'Arrest
NGC 610
Discovered (1886) by Frank Muller (II-312)
NGC 611
Discovered (1886) by Frank Muller (II-313)
NGC 612
Discovered (Nov 29, 1837) by John Herschel
NGC 613
Discovered (Dec 9, 1798) by William Herschel
NGC 614 (= NGC 618 = NGC 627)
Discovered (Sep 13, 1784) by William Herschel (and later listed as NGC 614)
Discovered (Nov 11, 1827) by John Herschel (and later listed as NGC 627)
Discovered (Nov 16, 1827) by John Herschel (and later listed as NGC 618)
NGC 615
Discovered (Jan 1, 1785) by William Herschel
NGC 616
Discovered (Aug 14, 1863) by Heinrich d'Arrest
NGC 617
Discovered (1886) by Francis Leavenworth (II-314)
NGC 618 (= NGC 614 = NGC 627)
Discovered (Sep 13, 1784) by William Herschel (and later listed as NGC 614)
Discovered (Nov 11, 1827) by John Herschel (and later listed as NGC 627)
Discovered (Nov 16, 1827) by John Herschel (and later listed as NGC 618)
The identification of NGC 618 and 627 with NGC 614 seems dubious. As noted by Dreyer in the first Index Catalog, "NGC 618 and 627, = h136 and 141. Not observed by h in the same sweep as h134-135. Should be struck out. Neither of them seen by Burnham".
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NGC 619
Discovered (Nov 30, 1837) by John Herschel
NGC 620
Discovered (Dec 14, 1871) by Édouard Stephan (3-2)
NGC 621
Discovered (Nov 24, 1883) by Édouard Stephan (13-10)
NGC 622
Discovered (Oct 9, 1785) by William Herschel
NGC 623
Discovered (Nov 30, 1837) by John Herschel
NGC 624
Discovered (Nov 28, 1785) by William Herschel
NGC 625
Discovered (Sep 2, 1826) by James Dunlop (#479)
NGC 626
Discovered (Sep 4, 1834) by John Herschel
NGC 627 (= NGC 614 = NGC 618)
Discovered (Sep 13, 1784) by William Herschel (and later listed as NGC 614)
Discovered (Nov 11, 1827) by John Herschel (and later listed as NGC 627)
Discovered (Nov 16, 1827) by John Herschel (and later listed as NGC 618)
The identification of NGC 618 and 627 with NGC 614 seems dubious. As noted by Dreyer in the first Index Catalog, "NGC 618 and 627, = h136 and 141. Not observed by h in the same sweep as h134-135. Should be struck out. Neither of them seen by Burnham".
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NGC 628 (= M74)
Discovered (September 1780) by Pierre Méchain
A 9th-magnitude spiral galaxy in Pisces (RA 01 36 42, Dec +15 47 00)
(Gemini Observatory, GMOS Team, apod030524)
NGC 629
Discovered (1825) by Wilhelm Struve (#2)
NGC 630
Discovered (Oct 23, 1835) by John Herschel
NGC 631
Discovered (Oct 27, 1864) by Albert Marth (50)
NGC 632
Discovered (Sep 24, 1830) by John Herschel
NGC 633
Discovered (Sep 1, 1834) by John Herschel
NGC 634
Discovered (Oct 26, 1876) by Édouard Stephan (8-6)
NGC 635
Discovered (Oct 15, 1885) by Francis Leavenworth (I-33)
NGC 636
Discovered (Jan 10, 1785) by William Herschel
NGC 637
Discovered (Nov 9, 1787) by William Herschel
NGC 638
Discovered (Oct 22, 1886) by Lewis Swift (5-14)
NGC 639
Discovered (Sep 27, 1834) by John Herschel
NGC 640
Discovered (1886) by Francis Leavenworth (II-315)
NGC 641
Discovered (Sep 5, 1834) by John Herschel
NGC 642
Discovered (Sep 27, 1834) by John Herschel
NGC 643
Discovered (Sep 18, 1835) by John Herschel
NGC 644
Discovered (Sep 5, 1834) by John Herschel
The second Index Catalog notes "Not found by Swift. h observed it twice".
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NGC 645
Discovered (Oct 27, 1864) by Albert Marth (51)
NGC 646
Discovered (Nov 2, 1834) by John Herschel
NGC 647
Discovered (1886) by Francis Leavenworth (II-316)
NGC 648 (= IC 146 = PGC 6083 = PGC 144217 = PGC 876776)
Discovered (1886) by Francis Leavenworth (I-34) (and later listed as NGC 648)
Discovered (Sep 30, 1892) by Stephane Javelle (and later listed as IC 146)
A 14th-magnitude spiral galaxy (type SA0 pec) in Cetus (RA 01 38 40, Dec -17 49 52)
The second Index Catalog lists a corrected RA (per Howe) of 01 31 54. (See IC 146 for a discussion of the double listing.) Based on recessional velocity of 10595 km/sec, about 475 million light years away. Given that and apparent size of 1.0 by 0.5 arcmin, about 140 thousand light years across. |
Above, a 1.2 arcmin wide closeup of NGC 648
Below, a 12 arcmin wide region centered on the galaxy |
NGC 649
Discovered (1886) by Francis Leavenworth (II-317)
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