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PGC Objects 71500 to 71999

PGC 71534 (=
NGC 7678 = Arp 28)

PGC 71748 (with its faint "companion" =
Arp 46)
A 15th-(B)magnitude spiral galaxy (type SB(rs)d pec) in Pegasus (RA 23 33 39, Dec +30 02 20)

Listed as Arp 46, as an example of a spiral galaxy with a faint companion. The companion, at RA 23 33 39, Dec +30 02 20, is listed in Wikisky as USNOA2 1200-19937361. It is not listed in HyperLeda or NED, although there is an NED note stating that it has a redshift more than 1000 km/sec greater than PGC 71748, which would put it at least 45 million light years further away, and make it unlikely that it is a physical pair with the larger galaxy. Based on a recessional velocity of 5375 km/sec, PGC 71748 is about 240 million light years away, in reasonable agreement with redshift-independent distance estimates of 185 to 225 million light years. Given that and its apparent size of 1.2 by 0.9 arcmin, it is about 85 thousand light years across.

Wikisky image of Arp 46
Above, a 1.2 arcmin wide closeup of Arp 46
Below, a 12 arcmin wide region centered on the object
Wikisky image of region near Arp 46

PGC 71753
A 13th-magnitude spiral galaxy (type Scd) in
Pegasus (RA 23 33 49, Dec +30 03 37)

Based on recessional velocity of 3795 km/sec, about 170 million light years away, in reasonable agreement with redshift-independent distance estimates of 125 to 165 million light years. Given that and apparent size of 1.4 by 0.8 arcmin, about 70 thousand light years across.

Wikisky image of PGC 71753
Above, a 1.5 arcmin wide closeup of PGC 71753
Below, a 12 arcmin wide region centered on the object
Wikisky image of region near PGC 71753
Ü     Celestial Atlas     Þ
PGC Objects 71500 to 71999