Usage By The Arp Atlas: PGC 32620 is used by the Arp Atlas as an example of an elliptical galaxy PGC 32638 connected to a spiral galaxy, with the note "Double arm leads to E gal., diffuse material out other side of E galaxy." (Erratum: The image of Arp 107 in the original Arp Atlas incorrectly shows North on the right; it is actually at the top, as in the images below.)
Physical Information: For interacting galaxies such as PGC 32620 and PGC 32628, the average of their recessional velocities provides a better estimate of their Hubble Flow distance than either of the individual values. The recessional velocity of PGC 32620 relative to the Cosmic Background Radiation is about 10665 km/sec, while that of PGC 32628 is about 10750 km/sec, yielding an average between 10705 and 10710 km/sec. Based on that recessional velocity relative to the Cosmic Background Radiation (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that Arp 107 is about 495 to 500 million light-years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 475 to 480 million light-years away at the time the light by which we see it was emitted, about 485 to 490 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 2.45 by 1.9 arcmin (from the images below, including the extensions interacting with PGC 32628), the galaxy and its distended arms span about 340 thousand light-years.

Usage By The Arp Atlas: PGC 32628 is used by the Arp Atlas as an example of an elliptical galaxy connected to a spiral galaxy (PGC 32620), with the note "Double arm leads to E gal., diffuse material out other side of E galaxy." (Erratum: The image of Arp 107 in the original Arp Atlas incorrectly shows North on the right; it is actually at the top, as in the images below.)
Physical Information: As discussed in the entry for PGC 32620, Arp 107 was about 475 to 480 million light-years away at the time the light by which we see it was emitted, about 485 to 490 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 0.5 by 0.45 arcmin (from the images below, not counting the extensions near it, which are at least in part, part of PGC 32620), the galaxy is about 70 thousand light-years across.

Physical Information: PGC 32802 has a recessional velocity relative to the Cosmic Microwave Background of 35045 km/sec, but as a member of a cluster, the average recessional velocity of that cluster is a better indication of its distance. Based on the cluster's recessional velocity relative to the Cosmic Background Radiation of 35325 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that SHK 001 is about 1645 million light-years away, in reasonable agreement with a single redshift-independent distance measurement of about 1615 million light-years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the cluster was about 1435 million light-years away at the time the light by which we see it was emitted, about 1520 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about ? (from the images below), PGC 32802 is about ? thousand light-years across.
NED , .17 x .13 arcmin

Physical Information: PGC 32805 has a recessional velocity relative to the Cosmic Microwave Background of 34815 km/sec, but as a member of a cluster, the average recessional velocity of that cluster is a better indication of its distance. Based on the cluster's recessional velocity relative to the Cosmic Background Radiation of 35325 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that SHK 001 is about 1645 million light-years away, in reasonable agreement with a single redshift-independent distance measurement of about 1615 million light-years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the cluster was about 1435 million light-years away at the time the light by which we see it was emitted, about 1520 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about ? (from the images below), PGC 32805 is about ? thousand light-years across.
NED , .19 x .13 arcmin

Physical Information: PGC 32807 has a recessional velocity relative to the Cosmic Microwave Background of 35445 km/sec, but as a member of a cluster, the average recessional velocity of that cluster is a better indication of its distance. Based on the cluster's recessional velocity relative to the Cosmic Background Radiation of 35325 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that SHK 001 is about 1645 million light-years away, in reasonable agreement with a single redshift-independent distance measurement of about 1615 million light-years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the cluster was about 1435 million light-years away at the time the light by which we see it was emitted, about 1520 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about ? (from the images below), PGC 32807 is about ? thousand light-years across.
NED .16 x .13 arcmin.

Physical Information: PGC 32808 has a recessional velocity relative to the Cosmic Microwave Background of 35080 km/sec, but as a member of a cluster, the average recessional velocity of that cluster is a better indication of its distance. Based on the cluster's recessional velocity relative to the Cosmic Background Radiation of 35325 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that SHK 001 is about 1645 million light-years away, in reasonable agreement with a single redshift-independent distance measurement of about 1615 million light-years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the cluster was about 1435 million light-years away at the time the light by which we see it was emitted, about 1520 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about ? (from the images below), PGC 32808 is about ? thousand light-years across.
.21 x .15 arcmin,

Physical Information: The recessional velocity of SHK 001-02 is unknown, but as a probable member of a cluster, the average recessional velocity of that cluster is a better indication of its distance, anyway. Based on the cluster's recessional velocity relative to the Cosmic Background Radiation of 35325 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that SHK 001 is about 1645 million light-years away, in reasonable agreement with a single redshift-independent distance measurement of about 1615 million light-years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the cluster was about 1435 million light-years away at the time the light by which we see it was emitted, about 1520 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about ? (from the images below), SHK 001-02 is about ? thousand light-years across.

Physical Information: The recessional velocity of SHK 001-06 is unknown, but as a probable member of a cluster, the average recessional velocity of that cluster is a better indication of its distance, anyway. Based on the cluster's recessional velocity relative to the Cosmic Background Radiation of 35325 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that SHK 001 is about 1645 million light-years away, in reasonable agreement with a single redshift-independent distance measurement of about 1615 million light-years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the cluster was about 1435 million light-years away at the time the light by which we see it was emitted, about 1520 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about ? (from the images below), SHK 001-06 is about ? thousand light-years across.
NED .1 x .1 arcmin

Physical Information: PGC 32810 has a recessional velocity relative to the Cosmic Microwave Background of 33375 km/sec, but as a member of a cluster, the average recessional velocity of that cluster is a better indication of its distance. Based on the cluster's recessional velocity relative to the Cosmic Background Radiation of 35325 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that SHK 001 is about 1645 million light-years away, in reasonable agreement with a single redshift-independent distance measurement of about 1615 million light-years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the cluster was about 1435 million light-years away at the time the light by which we see it was emitted, about 1520 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about ? (from the images below), PGC 32810 is about ? thousand light-years across.
Note: Although the image of PGC 32810 overlaps that of the fainter lenticular galaxy to its southwest, there is no sign of any interaction between them, so although they are probably co-members of SHK 001, they are almost certainly merely an optical double and not nearly as close to each other as they appear to be.
NED .06 x .06 arcmin

Physical Information: PGC 32811 has a recessional velocity relative to the Cosmic Microwave Background of 33435 km/sec, but as a member of a cluster, the average recessional velocity of that cluster is a better indication of its distance. Based on the cluster's recessional velocity relative to the Cosmic Background Radiation of 35325 km/sec (and H₀ = 70 km/sec/Mpc), a straightforward calculation indicates that SHK 001 is about 1645 million light-years away, in reasonable agreement with a single redshift-independent distance measurement of about 1615 million light-years. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the cluster was about 1435 million light-years away at the time the light by which we see it was emitted, about 1520 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about ? (from the images below), PGC 32808 is about ? thousand light-years across.
LEDA U 21.29, B 19.48