Page last updated Jan 5, 2020|
PGC 14030 (= UGC 2885)
A magnitude 13.5(?) spiral galaxy (type SA(rs)bc?) in Perseus (RA 03 53 03.0, Dec +35 35 25)
Note About UGC Designation: Although I usually use PGC designations for non-NGC/IC galaxies, the HST press release only used its UGC designation, hence its addition to the title for this entry.
Physical Information: Based on a recessional velocity of 5800 km/sec (and H0 = 70 km/sec/Mpc), PGC 14030 is about 270 million light years away, in fair agreement with a single redshift-independent distance estimate of about 230 to 235 million light years (the HST press release, apparently using that value, states that the galaxy is 232 million light years away, but no galaxy at such a distance can have its actual distance determined that accurately). Given that and its apparent size of about 4.5 by 1.25 arcmin (from the images below), the galaxy is about 355 thousand light years across. This makes it the largest spiral galaxy known to exist anywhere near our own galaxy. It is about 2.5 times the diameter and has about ten times as many stars as the approximately 1.5 trillion in our own galaxy.
Above, a 12 arcmin DSS image centered on PGC 14030
Below, a 5 arcmin wide DSS image of the galaxy
Below, a 3.4 by 4.4 arcmin wide image of the galaxy (Image Credit ESA/HST. Acknowledgment Davide De Martin)