Celestial Atlas
(IC 4600 - 4649) <—     IC Objects: IC 4650 - 4699     —> (IC 4700 - 4749)
Click here for Introductory Material
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.

Wikisky SDSS image of IC 4650

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.

Wikisky SDSS image of PGC 2562439
Above, a closeup of PGC 2562439
An approximately 15 arcmin wide region centered on the galaxy
Wikisky SDSS image of region near PGC 2562439

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
Celestial Atlas
(IC 4600 - 4649) <—     IC Objects: IC 4650 - 4699     —> (IC 4700 - 4749)
Click here for Introductory Material