Celestial Atlas
PGC 71000 - 71499 ←     PGC Objects: PGC 71500 - 71999 Link for sharing this page on Facebook     → PGC 72000 - 72499
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Page last updated Jul 21, 2012

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 38.6, 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 40.0, Dec +30 02 48, is listed in NED as ARP 046 NED02, with a 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, or make it something just "passing through"; however, given the distorted shape of the larger galaxy, it is possible that they are a currently interacting pair. Based on a recessional velocity of 5375 km/sec, PGC 71748 is about 250 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.

SDSS image of spiral galaxy PGC 71748 and its possibly interacting companion, collectively known as Arp 46
Above, a 2.4 arcmin wide closeup of Arp 46
Below, a 12 arcmin wide region centered on the pair, also showing PGC 71753
SDSS image of region near spiral galaxy PGC 71748 and its possibly interacting companion, collectively known as Arp 46; also shown is spiral galaxy PGC 71753

PGC 71753
A 13th-magnitude spiral galaxy (type Scd) in
Pegasus (RA 23 33 49.3, Dec +30 03 36)

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.

SDSS image of spiral galaxy PGC 71753
Above, a 2.4 arcmin wide closeup of PGC 71753
Below, a 12 arcmin wide region centered on the galaxy, also showing PGC 71748
SDSS image of region near spiral galaxy PGC 71753, also showing PGC 71748 (Arp 46)
Celestial Atlas
PGC 71000 - 71499 ←     PGC Objects: PGC 71500 - 71999     → PGC 72000 - 72499