QuickLinks: 4650, 4651, 4652, 4653, 4654, 4655, 4656, 4657, 4658, 4659, 4660, 4661, 4662, 4663, 4664, 4665, 4666, 4667, 4668, 4669, 4670, 4671, 4672, 4673, 4674, 4675, 4676, 4677, 4678, 4679, 4680, 4681, 4682, 4683, 4684, 4685, 4686, 4687, 4688, 4689, 4690, 4691, 4692, 4693, 4694, 4695, 4696, 4697, 4698, 4699
Page last updated June 30, 2011
WORKING: Add positions/physical data (per Steinicke)
WORKING: Add discoverers (per Steinicke) WORKING: Check size/quality of pix already on page
IC 4650 (? = ? PGC 2562439)
Discovered (1891) by Guillaume Bigourdan
A 16th-magnitude star in Draco (RA 17 15 52, Dec +57 19 13) OR a 16th-magnitude spiral galaxy in Draco (RA 17 15 47, Dec +57 18 07)
The position listed by Steinicke is just north of the star noted above. HyperLeda, Wikisky and NASA/IPAC NED all list the galaxy as IC 4650, but in different ways. A search for IC 4650 on Wikisky or NASA/IPAC will show the galaxy, but on Wikisky it is labeled with its PGC number, while NASA/IPAC does not recognize the PGC entry. HyperLeda has no entry for IC 4650, but shows the same galaxy by its PGC number. Since the identification as IC 4650 is uncertain, but that of PGC 2562439 is certain, the image below identifies both objects as IC 4650, and the galaxy as PGC 2562439. Note: Dreyer's notes (eF, st and neb) translate as "excessively faint, stars and nebula", which may mean that Bigourdan's observation refers to both the stars near PGC 2562439, and the galaxy. However, I still need to find the original coordinates and convert them to current coordinates, before I can be sure of this interpretation. |

PGC 2562439 (? = ? IC 4650)
Discovered (1891) by Guillaume Bigourdan
A 16th-magnitude spiral galaxy (type S?) in Draco (RA 17 15 47, Dec +57 18 07)
See IC 4650 for a discussion of the uncertainty of its possible identification as IC 4650. Based on its recessional velocity of 8005 km/sec, about 360 million light years away. Given that and its apparent size of 0.7 by 0.25 arcmin, about 70 thousand light years in diameter. |
 Above, a closeup of PGC 2562439 An approximately 15 arcmin wide region centered on the galaxy |

IC 4651
IC 4652
IC 4653
IC 4654
IC 4655
IC 4656
IC 4657
IC 4658
IC 4659
IC 4660
IC 4661
IC 4662
IC 4663
IC 4664
IC 4665
IC 4666
IC 4667
IC 4668
IC 4669
IC 4670
IC 4671
IC 4672
IC 4673
IC 4674
IC 4675
IC 4676
IC 4677
IC 4678
IC 4679
IC 4680
IC 4681
IC 4682
IC 4683
IC 4684
IC 4685
IC 4686
IC 4687
IC 4688
IC 4689
IC 4690 (= NGC 6589)
Discovered (Aug 28, 1867) by Truman Safford (and later listed as NGC 6589)
Discovered (August, 1905) by Edward Barnard (and later listed as IC 4690)
A reflection nebula in Sagittarius (RA 18 16 51.7, Dec -19 46 41)
IC 4691
IC 4692
IC 4693
IC 4694
IC 4695
IC 4696
IC 4697
IC 4698
IC 4699
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