Celestial Atlas
PGC 50500 - 50999 ←     PGC Objects: PGC 51000 - 51499 Link for sharing this page on Facebook     → PGC 51500 - 51999
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Page last updated Jul 20, 2012

PGC 51214 (with PGC 200317 =
Arp 45)
PGC 51214 = A 15th-magnitude spiral galaxy (type SABb) in Bo÷tes (RA 14 19 55, Dec +51 53 38)
PGC 200317 = A 16th-magnitude spiral galaxy (type ?) in Bo÷tes (RA 14 20 01, Dec +51 52 53)

PGC 51214 and PGC 200317 comprise Arp 45, an example of a spiral galaxy with a fainter companion. Unfortunately, there is some confusion as to which of the two galaxies is which. The current LEDA catalog (and presumably as a consequence, Wikisky) list the fainter galaxy as PGC 51214 and the brighter as PGC 200317, while NED reverses the PGC designations. However, a Vizier catalog search states that the brighter galaxy is PGC 51214, so that is more likely to be correct and the current LEDA listing a transposition error, and I have used that interpretation to label the images below (it also makes more sense, as the first 77141 PGC listings belong to the original catalog and are mostly somewhat brighter than those with larger numbers, which represent supplementary catalogs). Given the designations as stated, PGC 51214 has a recessional velocity of 8705 km/sec, and an apparent size of 0.7 by 0.5 arcmin. PGC 200317 has a recessional velocity of 8770 km/sec, and an apparent size of 0.4 by 0.3 arcmin. These numbers imply that the pair is about 410 million light years away, probably gravitationally bound, and that the larger galaxy is about 85 thousand light years across and the smaller about 45 thousand light years across. Note: the exaggeratedly red star which dominates the closeup is a 10th-magnitude object.

SDSS image of PGC 51214 and PGC 200317, which comprise Arp 45
Above, a 2.4 arcmin wide closeup of Arp 45
Below, a 12 arcmin wide region centered on the galaxies
SDSS image of region near PGC 51214 and PGC 200317, which comprise Arp 45
Celestial Atlas
PGC 50500 - 50999 ←     PGC Objects: PGC 51000 - 51499     → PGC 51500 - 51999