Based on a recessional velocity of 2940 km/sec, NGC 7750 is about 135 million light years away, in good agreement with admittedly uncertain redshift-independent distance estimates of 60 to 135 million light years. Given that and its apparent size of 1.6 by 0.8 arcmin, it is about 65 thousand light years across.

Based on a recessional velocity of 3245 km/sec, NGC 7751 is about 150 million light years away. Given that and its apparent size of 1.0 by 1.0 arcmin, it is about 45 thousand light years across.

Based on a recessional velocity of 3065 km/sec, PGC 141134 is about 145 million light years away, just a few million light years closer than its apparent companion, NGC 7751. Given that and its apparent size of 0.8 by 0.4 arcmin, it is about 35 thousand light years across.

Based on a recessional velocity of 5070 km/sec, NGC 7752 is about 235 million light years away. However, given its apparent involvement with NGC 7753, with which it forms Arp 86, it is probably at the same 235 to 240 million light year distance of the larger galaxy. Given that and its apparent size of 0.8 by 0.5 arcmin, it is about 55 thousand light years across.

Based on a recessional velocity of 5170 km/sec, NGC 7753 is about 240 million light years away. However, given its apparent involvement with NGC 7752, with which it forms Arp 86, it is probably at the same 235 to 240 million light year distance of the smaller galaxy. Given that and its apparent size of 3.3 by 2.1 arcmin, it is about 230 thousand light years across, over twice the size of our galaxy, and probably ten times as massive.

The second IC lists a corrected RA (per Howe) of 23 41 58. Based on a recessional velocity of 7500 km/sec, NGC 7754 is about 350 million light years away. Given that and its apparent size of 1.5 by 1.0 arcmin, it is about 150 thousand light years across.

Based on a recessional velocity of 8100 km/sec, PGC 72509 is about 375 million light years away, or about 25 million light years more distant than NGC 7754. Given that and its apparent size of 0.3 by 0.1 arcmin, it is about 35 thousand light years across.

Based on a recessional velocity of 2960 km/sec, NGC 7755 is about 140 million light years away, in fair agreement with redshift-independent distance estimates of 85 to 120 million light years. Given that and its apparent size of 3.8 by 2.9 arcmin, it is about 150 thousand light years across.

Based on a recessional velocity of 2955 km/sec, NGC 7757 is about 135 million light years away. Given that and its apparent size of 2.6 by 1.7, arcmin, it is about 100 thousand light years across. The "small high brightness companion" that caused this galaxy to be listed as Arp 68 is presumably the bright oblong on the western side of the galaxy (pointed out in the wide-field view by an arrow). However, it is currently listed not as a separate object, but as an HII region (a star-forming emission region at RA 23 48 41.6, Dec +04 10 36) within the larger galaxy, so it has no official separate designation (it is, however, listed in NED as UM 007 NED01, one of several emission regions in NGC 7757).

Based on a recessional velocity of 13085 km/sec, a straightforward calculation indicates that NGC 7758 is about 610 million light years away. However, for objects at such distances, we must 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 580 million light years away at the time the light by which we see it was emitted, about 590 million years ago (the difference between the two numbers being due to the expansion of the intervening space during that time). Given that and its apparent size of 0.7 by 0.5 arcmin, NGC 7758 is about 120 thousand light years across.

The second IC lists a corrected RA (per Howe) of 23 41 41. Based on a recessional velocity of 7325 km/sec, NGC 7759 is about 340 million light years away. Given that and its apparent size of 1.3 by 1.0 arcmin, it is about 130 thousand light years across. NGC 7759 is physically interacting with the object to its east (PGC 72499, also sometimes referred to as NGC 7759A).

Based on a recessional velocity of 7345 km/sec, PGC 72499 is about 340 million light years away, the same distance as NGC 7759 (which see for images), and they are a physically interacting pair. Given that and its apparent size of 0.5 by 0.15 arcmin, the galaxy is about 50 thousand light years across.

Based on a recessional velocity of 5250 km/sec, NGC 7760 is about 245 million light years away (although a drastically different measurement of 13200 km/sec implies a distance of nearly 600 million light years). Given that and its apparent size of 1.0 by 1.0 arcmin, it is about 70 thousand light years across (but the larger recessional velocity and distance, if correct, would imply a size of 170 thousand light years).

The second IC notes "Not found by Howe". Also noted in the second IC (at NGC 7776) is the comment: "7776 and 7761: Howe only found one nebula (IC 5361), RA 23 44 16, NPD 104 09.5, with a 9th magnitude star 3.5 arcmin to the west". Based on a recessional velocity of 7190 km/sec, NGC 7761 is about 335 million light years away. Given that and its apparent size of 1.2 by 1.2 arcmin, it is about 115 thousand light years across.

Approximately 15 to 20 arcmin wide. A relatively young cluster, with many hot blue stars. (Note: The DSS photomosaics below are the best available closeups of the region near NGC 7762; but their quality is uneven, because the cluster is on the outskirts of a large emission nebula, Cederblad 214, a small portion of which is seen as reddish-brown clouds scattered throughout the image, and the DSS photomosaic is much redder (or not nearly red enough) in oddly shaped regions which cover different parts of the field of view, so it is difficult to correct for the photomosaic errors without substantially altering the color balance. The corrections for the 24 arcmin closeup and the very wide images are fairly good; but the degree-wide image has a number of still-visible artifacts.)

Below, a 3 degree wide field of view, showing the position of the 1 degree image (outlined by a white border); note the rotation of the smaller image, caused by the difference in projection from the celestial sphere onto a flat image, due to the different centering of the images. Such differences are often seen in overlapping portions of different sky atlas charts.

Below, a comparison of the image above to a HST/ESA/FITS Liberator adjustment of the DSS data (outlined in white, to show its position relative to the original image; FITS Liberator image credits and HST site links shown at following image). Despite the posting of this image on the HST site, the image was not constructed from HST data. Instead, the software techniques used on HST images were applied to DSS images; as a result, although the Liberator images are better corrected for artifacts, and use slightly different color-adjustments, they look more like the narrow-field images I adjusted than not.

The second IC lists a corrected RA (per Howe) of 23 43 03. Based on a recessional velocity of around 5550 km/sec, NGC 7763 is about 260 million light years away. Given that and its apparent size of 0.7 by 0.4 arcmin, it is about 55 thousand light years across.

Based on a recessional velocity of 1695 km/sec, NGC 7764 is about 80 million light years away, in fair agreement with a redshift-independent distance estimate of 65 million light years. Given that and its apparent size of 2.0 by 1.5 arcmin, it is about 45 thousand light years across.

Based on a recessional velocity of 9160 km/sec, PGC 72755 is about 425 million light years away. Given that and its apparent size of 0.7 by 0.2 arcmin, it is about 85 thousand light years across. Given its proximity to PGC 72762 (which see for images) and the peculiar appearance of that galaxy, the galaxies may be gravitationally interacting.

Based on a recessional velocity of 9160 km/sec, PGC 72762 is about 425 million light years away. Given that and its apparent size of 1.3 by 0.7 arcmin, about 160 thousand light years across. It is about the same distance as PGC 72755 and PGC 72769, and given their proximity and the peculiar appearance of PGC 72762, it is probably gravitationally interacting with those galaxies.

Based on a recessional velocity of 8845 km/sec, PGC 72769 is about 410 million light years away. Given that and its apparent size of 0.4 by 0.3 arcmin, it is about 50 thousand light years across. Given its proximity to PGC 72762 (which see for images) and the peculiar appearance of that galaxy, the galaxies may be gravitationally interacting.

Based on a recessional velocity of 7650 km/sec, NGC 7765 is about 355 million light years away. Given that and its apparent size of 0.7 by 0.7 arcmin, it is about 75 thousand light years across.

Apparent size about 0.5 by 0.2 arcmin.

Apparent size about 1.0 by 0.2 arcmin.

Apparent size about 1.6 by 1.3 arcmin.

The brightest member of the NGC 7771 group, which consists of NGC 7769, 7770, and 7771. Based on a recessional velocity of 4210 km/sec, NGC 7769 is about 195 million light years away. Given that and its apparent size of 3.2 by 2.7 arcmin, it is about 180 thousand light years across.

A member of the NGC 7771 group, which consists of NGC 7769, 7770, and 7771 (which see for images). Based on a recessional velocity of 4115 km/sec, NGC 7770 is about 190 million light years away. Given that and its apparent size of 0.7 by 0.4 arcmin, it is about 40 thousand light years across.

A member of the NGC 7771 group, which consists of NGC 7769, 7770, and 7771. Based on a recessional velocity of 4275 km/sec, NGC 7771 is about 200 million light years away. Given that and its apparent size of 2.4 by 1.1 arcmin, it is about 140 thousand light years across. In images of the members of the NGC 7771 group, noticeable extensions of their fainter outer regions show the effects of their gravitational interaction. Eventually, all three galaxies in the group should merge to form a single galaxy.

The second IC notes: "7776 and 7761: Howe only found one nebula (IC 5361), RA 23 44 16, NPD 104 09.5, with a 9th magnitude star 3.5 arcmin to the west". As noted at NGC 7761, that is considered to be the same as IC 5361; how the second IC comment relates to NGC 7776 will be dealt with in the next iteration of this page. Apparent size about 0.9 by 0.3 arcmin.

Apparent size about 0.7 by 0.5 arcmin. A member of Hickson Compact Group 98 (= Arp 323). See NGC 7783 for images.

Apparent size about 0.2 by 0.2 arcmin. A member of Hickson Compact Group 98 (= Arp 323). See NGC 7783 for images.

Apparent size about 0.2 by 0.2 arcmin. A member of Hickson Compact Group 98 (= Arp 323). See NGC 7783 for images.

NGC 7788 is thought to be about 7700 light years away, which probably puts it in the Perseus Arm of the galaxy. Approximately two dozen fairly bright stars lie within a 4-arcmin diameter, which corresponds to 9 light years at the estimated distance. Based on the turnoff point of its Main Sequence stars, it is about 40 million years old. Its distance is sufficiently uncertain that it may form a double cluster with NGC 7790, which lies about a quarter-degree to the southeast.

NGC 7789 is about 8000 light years away, which probably puts in the Perseus Arm of the galaxy. Several hundred stars lie within a 25-arcmin diameter, which corresponds to 60 light years at the estimated distance. At about 1.6 billion years of age, most of its upper Main Sequence stars have died, and the 2 to 3 solar mass stars now dying have red giant lifetimes long enough to fill the relatively rich cluster with bright, reddish "dots".

NGC 7790 is thought to be about 9600 light years away, which probably puts it in the Perseus Arm of the galaxy. Approximately two dozen fairly bright stars lie within a 5 by 2 arcmin region, which corresponds to 14 light years at the estimated distance. Based on the turnoff point of its Main Sequence stars, it is about 55 million years old. Its distance is sufficiently uncertain that it may form a double cluster with NGC 7788, which lies about a quarter-degree to the northwest.

The first IC notes "Occurs in the Cordoba DM, RA 23 50 38, NPD 123 22.3. NGC 7793 is a member of the Sculptor Group of galaxies, one of the nearest group of galaxies to our Local Group. Its recessional velocity of 225 km/sec is too small to provide a reliable estimate of distance, but the 10 million light year value obtained by ignoring that happens to be in reasonable agreement with redshift-independent distance estimates of 10 to 20 million light years. Given that and its apparent size of 9.3 by 6.3 arcmins, the galaxy is about 35 thousand light years across.

Apparent size about 1.4 by 1.3 arcmin. The galaxy is listed as a pair with NGC 7817, with a probable separation of about 2 million light years.