Based on recessional velocity of 5550 km/sec, about 245 million light years away, in good agreement with redshift-independent distance estimates of 235 to 245 million light years. Given that and apparent size of 1.0 by 0.5 arcmins, about 70 thousand light years in diameter.

Corwin states that there is nothing at Swift's recorded positions for IC 151, 152, 153, or 157, and that although PGC 6368 may be one of the nebulae supposedly seen by Swift, whether it actually corresponds to any one of them, let alone IC 152, is uncertain at best (for example, HyperLeda lists IC 152 as PGC 6368, but although NASA/IPAC NED lists IC 152 as nonexistent, it does state that PGC 6368 "may also be" IC 152). Given the possibility that IC 152 might be PGC 6368, the NED data for that galaxy suggest the following: Based on a recessional velocity of 8095 km/sec, the object is about 360 million light years away. Given that and an apparent size of 0.5 by 0.4 arcmin, it is about 50 thousand light years in diameter.

Based on a recessional velocity of 5545 km/sec, about 250 million light years away. Given that and an apparent size of 1.4 by 0.2 arcmin, about 100 thousand light years in diameter.

Supposedly an emission nebula, but nothing exists at the recorded position, and Corwin states that there is nothing on the "discovery" plate, either.

Based on recessional velocity of 5525 km/sec, about 250 million light years away. Given that and apparent size of 1.5 by 1.2 arcmin, about 100 thousand light years in diameter.

Based on a recessional velocity of 15675 km/sec, about 700 million light years away. Given that and apparent size of 0.7 by 0.55 arcmin, about 140 thousand light years in diameter.

Based on recessional velocity of 3915 km/sec, about 175 million light years away. Given that and apparent size of 1.45 by 0.75 arcmin, about 70 thousand light years in diameter.

Based on recessional velocity of 5580 km/sec, about 250 million light years away. Given that and apparent size of 1.2 by 0.8 arcmin, about 85 thousand light years in diameter.

Corwin states that Swift's positions for IC 161 and 162 were poor, but that it seems certain he saw the brighter one in 1889, and both in 1890. Hence the identifications seem more likely to be correct, than not. Based on that, the recessional velocity of 5335 km/sec suggests a distance of 240 million light years. Given that and an apparent size of 0.8 by 0.6 arcmin, about 55 thousand light years in diameter.

(See IC 161 for Corwin's note about it and IC 162.) Based on a recessional velocity of 5160 km/sec, about 230 million light years away. Given that and apparent size of 1.6 by 1.6 arcmin, about 110 thousand light years in diameter.

Based on recessional velocity of 2750 km/sec, about 120 million light years away, in good agreement with redshift-independent distance estimates of 85 to 120 million light years. Given that and apparent size of 1.8 by 0.9 arcmin, about 65 thousand light years in diameter.

Based on recessional velocity of 5280 km/sec, about 235 million light years away. Given that and apparent size of 1.4 by 1.2 arcmin, about 95 thousand light years in diameter.

Based on recessional velocity of 2930 km/sec, about 130 million light years away, in fair agreement with redshift-independent distance estimates of 65 to 110 million light years. Given that and apparent size of 2.9 by 1.9 arcmin, about 110 thousand light years across.

Based on recessional velocity of 5355 km/sec, about 240 million light years away. Given that and apparent size of 1.05 by 0.4 arcmin, about 70 thousand light years in diameter.

Based on recessional velocity of 8475 km/sec, about 380 million light years away. Given that and apparent size of 0.65 by 0.5 arcmin, about 70 thousand light years in diameter.

Based on recessional velocity of 5215 km/sec, about 230 million light years away. Given that and apparent size of 0.72 by 0.58 arcmin, about 50 thousand light years in diameter.

Based on recessional velocity of 5360 km/sec, about 240 million light years away. Given that and apparent size of 2.5 by 2.2 arcmin, about 175 thousand light years in diameter.

Based on recessional velocity of 8210 km/sec, about 365 million light years away. Given that and apparent size of 0.75 by 0.5 arcmin, about 75 thousand light years in diameter.

Based on recessional velocity of 13915 km/sec, about 620 million light years away. Given that and apparent size of 0.9 by 0.7 arcmin, about 160 thousand light years in diameter.

Based on recessional velocity of 5205 km/sec, about 230 million light years away. Given that and apparent size of 1.3 by 0.8 arcmin, about 90 thousand light years in diameter.

Apparent size of 0.6 by 0.45 arcmin; apparently nothing else available.

Based on recessional velocity of 4445 km/sec, about 200 million light years away, in good agreement with redshift-independent distance estimates of 175 to 220 million light years. Given that and apparent size of 2.35 by 0.35 arcmin, about 135 thousand light years in diameter.

Based on recessional velocity of 13545 km/sec, about 600 million light years away. Given that and apparent size of 0.6 by 0.5 arcmin, about 100 thousand light years in diameter. Corwin notes that although correctly identified in most catalogs, the MCG incorrectly lists one of the fainter galaxies to the south as IC 177.

Based on recessional velocity of 4840 km/sec, about 215 million light years away, in good agreement with a redshift-independent distance estimate of 230 million light years. Given that and apparent size of 1.3 by 0.9 arcmin, about 80 thousand light years in diameter.

Based on recessional velocity of 4210 km/sec, about 185 million light years away. Given that and apparent size of 1.8 by 1.5 arcmin, about 100 thousand light years in diameter.

Based on recessional velocity of 4910 km/sec, about 220 million light years away. Given that and apparent size of 0.75 by 0.3 arcmin, about 50 thousand light years in diameter.

Apparent size 0.4 by 0.3 arcmin; apparently nothing else available.

Based on recessional velocity of 4695 km/sec, about 210 million light years away. Given that and apparent size of 0.8 by 0.6 arcmin, about 50 thousand light years in diameter.

Based on recessional velocity of 3800 km/sec, about 170 million light years away. Given that and apparent size of 1.3 by 0.4 arcmin, about 65 thousand light years in diameter.

A Seyfert galaxy (type Sy2). Based on recessional velocity of 5380 km/sec, about 240 million light years away. Given that and apparent size of 1.0 by 0.5 arcmin, about 70 thousand light years in diameter.

Based on recessional velocity of 13190 km/sec, about 600 million light years away. Given that and apparent size of 0.5 by 0.2 arcmin, about 85 thousand light years in diameter.

IC 186A and B appear to be an interacting triplet. Based on a recessional velocity of 12830 km/sec, they are about 570 million light years away. Given that and apparent sizes of 0.4 by 0.25 arcmin for IC 186A, and 0.3 by 0.2 arcmin for IC 186B, the three galaxies (A, B1 and B2) are about 65, 30 and 20 thousand light years across, respectively.

IC 187 appears to be an interacting pair. Based on a recessional velocity of 5150 km/sec, they are about 230 million light years away, in good agreement with redshift-independent distance estimates of 220 to 280 million light years. Given that and apparent sizes of 2.0 by 0.7 arcmin for component 1, and 0.7 by 0.25 arcmin for component 2, they are about 130 and 45 thousand light years across, respectively.

There is considerable confusion as to the identity of this object. Corwin states that Swift's positions for IC 187 and 188 were poor, but that his "description of the two galaxies is consistent" with their appearance, suggesting that his identification of IC 188 as PGC 7706 is at least possible. However, HyperLeda does not list IC 188, and entering IC 188 in Wikisky shows an empty region (although entering Steinicke's position shows the aforementioned star). So searches for the object in various databases are bound to give conflicting results. Based on the identification as PGC 7706, the object has a recessional velocity of 5010 km/sec, suggesting a distance of 225 million light years, in fair agreement with redshift-independent distance estimates of 175 to 210 million light years. Given that and its apparent size of 0.6 by 0.3 arcmin, it is about 40 thousand light years in diameter.

Based on a recessional velocity of 12345 km/sec, about 550 million light years away. Given that and its apparent size of 0.8 by 0.8 arcmin, about 130 thousand light years in diameter.

Based on a recessional velocity of 4770 km/sec, about 210 million light years away. Given that and its apparent size of 0.25 by 0.2 arcmin, about 15 thousand light years in diameter.

Dreyer noted that the position of Swift's object was essentially the same as that recorded by Herschel and his son, John Herschel; but their descriptions were so different that he listed them as different objects. Corwin suggests that Swift probably made his observation on a night when the "seeing" was much better.

Based on a recessional velocity of 3895 km/sec, about 175 million light years away. Given that and its apparent size of 0.9 by 0.7 arcmin, about 45 thousand light years in diameter.

Based on a recessional velocity of 4650 km/sec, about 210 million light years away. Given that and its apparent size of 1.7 by 1.5 arcmin, about 100 thousand light years in diameter.

Based on a recessional velocity of 6385 km/sec, about 285 million light years away, in reasonable agreement with redshift-independent distance estimates of 290 to 330 million light years. Given that and its apparent size of 2.1 by 0.3 arcmin, about 175 thousand light years in diameter.

Based on a recessional velocity of 3660 km/sec, about 163 million light years away. Given that and its apparent size of 1.15 by 0.6 arcmin, about 55 thousand light years in diameter. Since IC 195 and IC 196 have distorted appearances and essentially identical distances, they are presumably a strongly interacting gravitationally bound pair.

Based on a recessional velocity of 3645 km/sec, about 162 million light years away. Given that and its apparent size of 2.6 by 0.8 arcmin, about 125 thousand light years in diameter. Since IC 196 and IC 195 have distorted appearances and essentially identical distances, they are presumably a strongly interacting gravitationally bound pair.

Based on a recessional velocity of 6330 km/sec, about 280 million light years away, in poor agreement with redshift-independent distance estimates of 190 to 220 million light years. Given that and its apparent size of 1.0 by 0.5 arcmin, perhaps 80 thousand light years in diameter.

Based on a recessional velocity of 9245 km/sec, about 410 million light years away, in reasonable agreement with redshift-independent distance estimates of 290 to 400 million light years. Given that and its apparent size of 1.1 by 0.6 arcmin, about 130 thousand light years in diameter. If the recessional velocity distance estimate is more reliable than the redshift-independent estimates, IC 198 and IC 199 may be a gravitationally bound pair.

(Per Corwin: Usually a rediscovery of the same object by the same observer is due to poor measurements of its position; but Javelle's two measurements are essentially the same, so it's a complete mystery that he failed to realize that he had already observed the object, five years earlier.) Based on a recessional velocity of 9260 km/sec, about 410 million light years away, in fair agreement with redshift-independent distance estimates of 340 to 360 million light years. Given that and its apparent size of 1.4 by 0.8 arcmin, perhaps 170 thousand light years across. If the recessional velocity distance estimate is more reliable than the redshift-independent estimates, IC 199 and IC 198 may be a gravitationally bound pair.