The original Principal Galaxies Catalog contained 73,197 entries. Subsequent revisions have increased this to more than three million entries. Such a vast number of objects cannot be properly covered on this site, and even deciding which of the entries to include and how to organize them is a daunting prospect. However, I plan to eventually include entries for every PGC object shown on one of the NGC/IC wide-field images, and some place needs to be provided for those objects which have been dealt with, but do not yet have a permanent page assigned. This page serves as a temporary site for such entries (to accommodate those who wish to link to one of the entries on this page, if an entry is moved to a permanent site, a link to that site will replace its entry on this page).

Based on recessional velocity of 11390 km/sec, about 500 million light years away. Given that and starlike apparent size of 0.07 arcmin, perhaps 10 thousand light years across. In nearly the same direction as PGC 138157, which see for image.

Based on recessional velocity of 26080 km/sec, about 1.15 billion light years away. Given that and starlike apparent size of 0.07 arcmin, perhaps 20 thousand light years across.

Listed in NED as SDSSJ122802.01+114049.6. Based on recessional velocity of 20820 km/sec, about 930 million light years away. Given that and apparent size of 0.3 by 0.15 arcmin, about 80 thousand light years across.

Based on recessional velocity of 6055 km/sec, about 270 million light years away. Given that and apparent size of 0.5 by 0.5 arcmin, about 40 thousand light years across.

Identified in NED as VPC 559. Although the Virgo Photometry Catalogue is a list of galaxies in the area of the Virgo Cluster of galaxies, PGC 169337 is not a member of that cluster, but a very distant background object. Based on its recessional velocity of 26880 km/sec, it is about 1.2 billion light years away. Given that and its apparent size of 0.3 by 0.25 arcmin, it is about 100 thousand light years across.

Listed in NED as VPC 587. Although the Virgo Photometry Catalogue is a list of galaxies in the area of the Virgo Cluster of galaxies, PGC 169351 is not a member of that cluster, but a very distant background object. Based on its recessional velocity of 25730 km/sec, it is about 1.15 billion light years away. Given that and its apparent size of 0.25 by 0.15 arcmin, it is about 90 thousand light years across. PGC 169351 and 169360 have similar recessional velocities, and are probably about the same distance from us, so there is a chance that they are gravitationally bound.

Listed in NED as VPC 604. Although the Virgo Photometry Catalogue is a list of galaxies in the area of the Virgo Cluster of galaxies, PGC 169360 is not a member of that cluster, but a very distant background object. Based on its recessional velocity of 25985 km/sec, it is about 1,15 billion light years away. Given that and its apparent size of 0.2 by 0.2 arcmin, it is about 70 thousand light years across. PGC 169360 and 169351 have similar recessional velocities, and are probably about the same distance from us, so there is a chance that they are gravitationally bound.

Listed in NED as SDSSJ122841.89+113816.7. Based on recessional velocity of 26085 km/sec, about 1.15 billion light years away. Given that and apparent size of 0.15 by 0.15 arcmin, about 60 thousand light years across. Given its proximity to PGC 169365 in direction and distance (as inferred from their recessional velocities), there is a good chance that the galaxies are gravitationally bound.

Listed in NED as VPC 614. Although the Virgo Photometry Catalogue is a list of galaxies in the area of the Virgo Cluster of galaxies, PGC 169365 is not a member of that cluster, but a very distant background object. Based on recessional velocity of 26010 km/sec, about 1.15 billion light years away. Given that and apparent size of 0.3 by 0.1 arcmin, about 100 thousand light years across. Given its proximity to PGC 169363 (which see for views of the galaxies) in direction and distance (as inferred from their recessional velocities), there is a good chance that the galaxies are gravitationally bound.

Based on its recessional velocity of 26130 km/sec, about 1.15 billion light years away. Given that and its apparent size of 0.25 by 0.2 arcmin, about 80 thousand light years across. Given its proximity to PGC 169363 and 169365 in direction and distance (as inferred from their recessional velocities), there is a good chance that the galaxies are gravitationally bound.

(Usually referred to as 2MASX J00482185-2507365, but searchable on NED by its PGC listing.) Based on a recessional velocity of 19190 km/sec, a straightforward calculation indicates that the galaxy is about 890 million light years away. However, at such distances, we must take into account the expansion of the Universe during the time the galaxy's light took to reach us. Doing so shows that the galaxy was 830 million light years away when the light by which we see it was emitted, 855 million years ago (the difference between the two numbers being due to the expansion of the space between it and us during that time). A Hubble news release (accompanying the closeup image below) states that the galaxy is about 780 million light years away, in reasonable agreement with the redshift distance. Using a distance of about 800 million light years and its apparent size of 0.42 by 0.25 arcmin suggests that PGC 198197 is about 100 thousand light years across (which also agrees with the estimate in the Hubble news release). Perhaps the most interesting feature of the galaxy is its nearly perfect alignment with another galaxy, HKW2009, an 18th-(B)magnitude foreground galaxy which appears about five times smaller, and being closer is suggested as being perhaps a tenth its size, or about 10 thousand light years across. The overlapping of the galaxies provides an unusually detailed view of the dusty outer regions of the foreground galaxy, and suggests that they extend several times as far from its core as the visible stars in its spiral structure (so that it is actually several times larger than it appears). It has been long known that many (if not most) galaxies have extensive "haloes" filled with gas, dust and other unseen material (such as "dark matter"), but it is unusual to find such an easy and exact way to study those regions.

Listed in NED as 2DFGRSS360Z141. Based on a recessional velocity of 41670 km/sec, a straightforward calculation indicates that PGC 723295 is about 1.8 billion light years away. However, for such a distant object, we need to take into account the expansion of the Universe during its light's journey. Doing so shows that the galaxy was about 1.6 billion light years away when the light by which we see it was emitted, about 1.7 billion years ago (the difference between the two numbers being due to the Universal expansion during that time). Given that and its apparent size of 0.27 by 0.14 arcmin, it is about 125 thousand light years across.

Listed in NED as 2DFGRSS359Z122. Based on a recessional velocity of 18375 km/sec, a straightforward calculation indicates that PGC 724741 is about 820 million light years away. However, for such a distant object, we need to take into account the expansion of the Universe during its light's journey. Doing so shows that the galaxy was about 765 million light years away when the light by which we see it was emitted, about 785 million years ago (the difference between the two numbers being due to the Universal expansion during that time). Given that and its apparent size of 0.23 by 0.18 arcmin, it is about 50 thousand light years across.

Listed in NED as 2DFGRSS278Z243. Based on a recessional velocity of 41820 km/sec, a straightforward calculation indicates that PGC 724741 is about 1.85 billion light years away. However, for such a distant object, we need to take into account the expansion of the Universe during its light's journey. Doing so shows that the galaxy was about 1.6 billion light years away when the light by which we see it was emitted, about 1.7 billion years ago (the difference between the two numbers being due to the Universal expansion during that time). Given that and its apparent size of 0.27 by 0.18 arcmin, it is about 125 thousand light years across. For images, see PGC 724751.

Listed in NED as APMUKS(BJ) B001420.48-134614.0, with coordinates and apparent size (0.13 by 0.11 arcmin) suggesting that it is a very faint extension of PGC 937493. The DSS image does show a faint smudge which may be a separate object, but the SDSS image does not; so the object may not exist, or may be a duplicate listing of PGC 937493 (which see).

Listed in NED as APMUKS(BJ) B001414.17-134520.7. Apparent size 0.6 by 0.3 arcmin; nothing else available. "Associated" with PGC 937463, which may be a faint extension of the spiral, an independent galaxy, a nonexistent object, or a duplicate listing.

PGC identification is certain. Mousing over the Wikisky field near NGC 17 yields an identification as PGC 956278. Using the object's coordinates yields a NED listing for 2MASXJ00110416-1211586; HyperLeda then cross-references the object as PGC 956278, confirming the Wikisky identification. Note: searching for that name in Wikisky shows a completely different galaxy (PGC 56278); this is a common truncation error in the Wikisky search engine. Apparent size 0.45 by 0.3 arcmins; nothing else available.

PGC identification is based on HyperLeda, and mousing over the Wikisky field near NGC 17. Not listed in NED. Note: searching for PGC 957826 in Wikisky shows a completely different galaxy (PGC 57826), a common truncation error in the Wikisky search engine; use its coordinates for the correct result. Apparent size 0.42 by 0.25 arcmins; nothing else available.

Based on recessional velocity of 13350 km/sec, about 600 million light years away. Given that and apparent size of 0.45 by 0.45 arcmin, about 80 thousand light years across. PGC 1053379, 9113 (and presumably 9107), 1054270 and 3080366 all have similar recessional velocities (and presumably, distances). As a result, they may be a gravitationally bound group.

Based on recessional velocity of 13175 km/sec, about 590 million light years away. Given that and apparent size of 0.65 by 0.15 arcmin, about 110 thousand light years across. PGC 1054270, 9113 (and presumably 9107), 1053379 and 3080366 all have similar recessional velocities (and presumably, distances). As a result, they may be a gravitationally bound group.

Based on recessional velocity of 23430 km/sec, about 1 billion light years away. Given that and apparent size of 0.25 by 0.15 arcmins, about 75 thousand light years in diameter.

Listed in NED as 2MASXJ13163736+1420297. Based on recessional velocity of 57780 km/sec (nearly 20% the speed of light), about 2.6 billion light years away. Given that and apparent size of 0.17 by 0.13 arcmin, about 125 thousand light years across.

Listed in NED as Arp57 NED02. Apparent size 0.25 by 0.2 arcmin; nothing else available. See PGC 46225 for images.

Listed in NED as 2MASXJ13163675+1427287. Based on recessional velocity of 31140 km/sec (about 10% of the speed of light), about 1.4 billion light years away. Given that and apparent size of 0.35 by 0.15 arcmin, about 130 thousand light years across.

Listed in NED as SDSSJ131638.55+142958.7. Based on recessional velocity of 17995 km/sec), about 800 million light years away. Given that and apparent size of 0.2 by 0.15 arcmin, about 50 thousand light years across.

Listed in NED as 2MASXJ13163200+1433327. Based on recessional velocity of 19765 km/sec, about 880 million light years away. Given that and apparent size of 0.25 by 0.25 arcmin, about 60 thousand light years across.

Listed in NED as 2MASXJ13164943+1438429. Based on recessional velocity of 49800 km/sec (more than 15% of the speed of light), about 2.2 billion light years away. Given that and apparent size of 0.25 by 0.15 arcmin, about 160 thousand light years across.

Listed in NED as SDSS J000846.00+155142.2. Based on recessional velocity of 12125 km/sec, about 540 million light years away. Given that and apparent size of 0.32 by 0.21 arcmins, about 50 thousand light years in diameter.

Listed in NED as 2MASX J00090205+1554338. Based on recessional velocity of 20895 km/sec, about 930 million light years away. Given that and apparent size of 0.39 by 0.23 arcmins, about 100 thousand light years in diameter.

Listed in NED as SDSS J000907.76+155504.3. Based on recessional velocity of 16870 km/sec, about 750 million light years away. Given that and apparent size of 0.39 by 0.16 arcmins, about 85 thousand light years in diameter.

Part of Abell 2634, the Pegasus II cluster of galaxies. Based on recessional velocity of 10370 km/sec, about 460 million light years away. Given that and apparent size of 0.6 by 0.4 arcmins, about 80 thousand light years in diameter. See PGC 85597 for a closeup of PGC 1801452, and PGC 72000 for a wide-field view of the region around these galaxies.

NED lists as 2MASXJ00084122+2744128. Apparent size 0.25 by 0.17 arcmins; nothing else available.

Based on recessional velocity of 18370 km/sec, about 800 million light years away. Given that and apparent size of 0.8 by 0.25 arcmin, about 200 thousand light years across. Note: Wikisky does not recognize the PGC number. Use the coordinates to search for the galaxy.

Based on recessional velocity of 12835 km/sec, about 600 million light years away. Given that and apparent size of 0.4 by 0.2 arcmin, about 65 thousand light years across. Note: Wikisky does not recognize the PGC number. Use the coordinates to search for the galaxy.

Listed in NED as SDSSJ091551.05+441249.2. Based on recessional velocity of 9640 km/sec, about 430 million light years away. Given that and apparent size of 0.3 by 0.2 arcmin, about 40 thousand light years across.

Listed in NED as SDSS J091545.81+442124.3. Based on recessional velocity of 11775 km/sec, about 525 million light years away. Given that and apparent size of 0.3 by 0.1 arcmin, about 45 thousand light years across.

Based on recessional velocity of 13140 km/sec, about 590 million light years away. Given that and apparent size of 0.6 by 0.6 arcmin, about 100 thousand light years across. PGC 3080366, 9113 (and presumably 9107), 1053379 and 1054270 all have similar recessional velocities (and presumably, distances). As a result, they may be a gravitationally bound group.

Listed in NED as UGC 04881 NED02. Based on recessional velocity of 11780 km/sec, about 530 million light years away. Given that and apparent size of 0.2 by 0.15 arcmin, about 30 thousand light years across. Its larger companion (PGC 26132, which see for images of the pair) is listed in NED as UGC 04881 NED01. Its recessional velocity of 11920 km/sec would imply it is at essentially the same distance, even without the obvious interaction between the two galaxies. Note: The only magnitude listed is for radio wavelengths, so the optical magnitude is based on a comparison of its appearance to that of its companion and nearby galaxies of known brightness. The actual value could be as much as a magnitude fainter.

Listed in NED as SDSSJ001559.71-001817.7. Based on its recessional velocity of 11910 km/sec, its light took about 530 million years to reach us, and it was about 510 million light years away when the light by which we see it was emitted (the difference in the two numbers being caused by the expansion of the Universe during that journey). It is almost certainly at the same distance as NGC 60, which is presumably distorted as a result of their gravitational interaction. Given its distance and an apparent size of 0.35 by 0.2 arcmin, the smaller galaxy is about 50 thousand light years across.

Listed in NED as 2DFGRSS359Z106 . Based on a recessional velocity of 47695 km/sec, a straightforward calculation indicates that PGC 3194215 is about 2.13 billion light years away. However, for such a distant object we have to take into account the expansion of the Universe during its light's journey. Doing that shows that the galaxy was about 1.8 billion light years away when the light by which we see it was emitted, about 1.9 billion years ago (the difference between the two numbers being due to the Universal expansion during that time). Given that and its apparent size of 0.18 by 0.14 arcmin, it is about 90 thousand light years across.

Listed in NED as 2DFGRSS359Z113. Based on a recessional velocity of 37425 km/sec, a straightforward calculation indicates that PGC 3194224 is about 1.67 billion light years away. However, for such a distant object we have to take into account the expansion of the Universe during its light's journey. Doing that shows that the galaxy was about 1.45 billion light years away when the light by which we see it was emitted, about 1.55 billion years ago (the difference between the two numbers being due to the Universal expansion during that time). Given that and its apparent size of 0.19 by 0.15 arcmin, it is about 80 thousand light years across.

Not listed in NED. Either a star-forming region in NGC 60, or (perhaps more likely) a background galaxy of unknown distance. Apparent size about 4 by 2 arcsec, but in the absence of any further information, its actual size is unknown.

Listed in HyperLeda as a galaxy, but without any information save for its position, which is the same as what appears to be a star-forming region in NGC 99 (as shown in the 2.4 arcmin wide view below). Note: Presumably the same object as PGC 4677027, as their listed positions are identical.