Based on a recessional velocity of 8450 km/sec, IC 1250 is about 395 million light years away. Given that and its apparent size of 0.6 by 0.3 arcmins, it is about 65 thousand light years across.

Apparent size 1.5 by 1.0 arcmin.

(Either the date of the second observation is wrong, or Bigourdan made a reduction error). Apparent size 1.0 by 0.2 arcmin.

(The NGC listing was undoubtedly credited to someone else; will clear up the confusion in next iteration. In any event, this entry will contain mostly historical information, so see NGC 6347 for anything else.)

Apparent size 1.6 by 0.7 arcmin.

Apparent size 1.0 by 0.5 arcmin.

Apparent size 1.6 by 1.1 arcmin.

Apparent size 5.0 arcmin.

Apparent size 0.9 by 0.7 arcmin. Used by the Arp Atlas as part of an example of a group of galaxies (Arp 311), with its apparent companions, IC 1259 and 1260.

Apparent size of PGC 60323 = 0.8 by 0.4 arcmin; of PGC 60325 = 0.3 by 0.3 arcmin. IC 1259 is used by the Arp Atlas as an example of an unclassified galaxy (Arp 310), and as part of an example of a group of galaxies (Arp 311) with its apparently nearby companions, IC 1258 and 1260.

Used as an part of an example of a group of galaxies (Arp 311), with its apparent companions, IC 1258 and 1259.

Apparent size of PGC 60185 is 0.8 by 0.7 arcmin; of PGC 60186 is 0.9 by 0.7 arcmin

Apparent size 1.2 by 0.6 arcmin

Apparent size 1.6 by 0.7 arcmin

Apparent size 1.2 by 1.1 arcmin

Apparent size 2.0 by 0.9 arcmin

Apparent size 0.17 arcmin

Apparent size 1.5 by 1.0 arcmin

Historical Identification: Per Dreyer, IC 1268 (Swift list VII (#92), 1860 RA 17 44 12, NPD 72 44.9) is "most extremely faint, pretty small, round, very difficult." The second IC lists a corrected RA (per Howe) of 17 44 27 (Howe also gave a declination, but it was close enough to Swift's declination that Dreyer didn't bother to mention it). Precessing the corrected position yields a position of RA 17 50 39.4, Dec +17 12 34, almost dead center on the galaxy listed above, the description is reasonable and there is nothing else nearby, so the identification is certain.
Note About A Misidentification: As discussed in the entry for NGC 6468, at least one (and perhaps several) databases incorrectly listed this galaxy as a duplicate entry for the NGC object. However, as discussed in the entry for NGC 6468, that must be incorrect. So although the bare-bones entry shown here until 2023 repeated that error, there is no connection between the NGC and IC entries.
Physical Information: WORKING HERE
Classification Note: The outermost part of the spiral arms is very faint, but definitely extends well beyond the brighter central region. Given the "string of blue knots" extending from the core to the northwest, there is a possibility that what we see now may be the result of an ongoing or recent collision/merger with a smaller galaxy. (Thanks to Dr. Corwin for his comments about the appearance and classification of this object.)

The second IC lists a corrected RA (per Howe of 17 46 10 and adds "10th magnitude star 4 arcmin to southwest". Apparent size 1.7 by 1.3 arcmin?

The second IC adds (per Howe) "An extremely faint extension of NGC 6523".

Apparent size 6.0 by 5.0 arcmin

Apparent size 8.0 arcmin

Apparent size 1.2 by 0.9 arcmin

Apparent size 0.80 arcmin

Apparent size 2.6 by 0.6 arcmin

(this entry will mostly contain historical information; for anything else see NGC 6581)

The second IC adds "is = IC 1279. Howe saw only the latter." (Obviously, the second IC comment may be incorrect.) Apparent size 0.5 by 0.3 arcmin?

Apparent size 3.0 by 3.0 arcmin. Part of IC 1284.

The second IC adds "See A.N. 4239 about the very faint, extremely large nebulosities in this neighbourhood". Apparent size 17 by 15 arcmin?

Apparent size 1.4 by 0.5 arcmin

Apparent size 20 by 10 arcmin

Apparent size 1.1 by 0.7 arcmin

Apparent size 0.7 by 0.3 arcmin

The second IC adds (per Howe) "A cluster of a half dozen stars of 12th magnitude and fainter". Apparent size 2.0 by 1.0 arcmin?

The second IC adds (per Howe) "RA 18 30 17, NPD 40 50.0, two 12th magnitude stars to northeast and northwest". Apparent size 2.0 by 2.0 arcmin?

Apparent size 1.5 arcmin

Discovery Note: Gothard is not credited with the discovery because on the photographs he took of the Ring Nebula this galaxy appeared starlike. It was only after Barnard announced its discovery that Gothard reviewed his plates and published a paper (in 1894) describing its position and showing a sketch based on his photographs.
Apparent size 1.1 by 0.8 arcmin

Historical Identification: Per Dreyer, IC 1297 (Pickering AN#3227, 1860 RA 19 07 45, NPD 129 51) is "stellar (gaseous spectrum)." The position precesses to RA 19 17 23.1, Dec -39 36 26, only about 0.3 arcmin north-northwest of the center of the object listed above, the description fits and there is nothing comparable nearby, so the identification is certain. (Note: The central star is magnitude 7.9, and in the images below the nebula is lost in the glare of the star; see Physical Information for more.)
Discovery Notes: As shown above, the actual discoverer was Williamina Fleming, but since she worked for Edward Pickering and he published the results of his and his assistants' work, Dreyer simply noted Pickering's publication. Also, per Gottlieb, the identification as RU CrA is simply the name assigned to the central star (magnitude 7.9 HD 180206).
Note About PGC Designation: As usual for NGC/IC objects, HyperLEDA assigned a PGC designation to this object, even though it isn't a galaxy; but also as usual in such a situation, a search of the database for that designation returns no result, hence its being in quotes.
Physical Information: Since the nebula is south of the limit of modern 'full-sky' image databases, and its region has not been included in modern image databases, only the mid-1900's DSS image database shows this object. Based on the images below, the object has an apparent size of about 0.25 arcmin (20 arcsec), but its actual apparent size is considerably different, as its appearance on DSS images is essentially the same as that of a star of the same brightness (namely, the one at its center). Gottlieb (visually observing the nebula with a 14.5 inch telescope and a UHC filter at 140, 182 and 264 power) describes the object as a small bluish disc of about 10 arcsec diameter, with a slightly brighter rim, suggesting that like most planetary nebulae, it is at least weakly annular (and very slightly elongated). Per SIMBAD, the parallax of the star/nebula is 0.2254 milli-arcsec (from a 2020 paper), which corresponds to a distance of about 14,500 light-years. At that distance, Gottlieb's 10 arcsec diameter corresponds to about 0.7 light-years.

Apparent size 4.0 by 2.5 arcmin. A loose scattering of about a dozen stars.