3 Additional list of new accurate equatorial coordinates

At the beginning of this work the percentage of galaxies with good coordinates in LEDA was about 90%. We selected galaxies still having poor coordinates (standard deviation less than 10''). About 18500 galaxies were listed for which DSS images were extracted from ESO in Münich. Then, our procedure of measurement was applied leading to 13823 accurate coordinates which are listed in Table 2. The following data are given:
Column 1: PGC number according to LEDA (Paturel et al. 1989).
Column 2: Name according to Table 3, if applicable.
Column 3: Right Ascension and Declination for equinox 2000 (in hours, minutes, seconds and tenths and degrees, arcminutes and arcseconds).
Column 4: Flag to mention an uncertainty on name.

After having loaded this list and the UGC-companion list 97.8% of the galaxies (about 190000 galaxies) in LEDA had accurate coordinates. In practice, 365 galaxies presented an inconsistency of names between LEDA and NED. These cases were analyzed with special care. They are noted with an asterisk in Table 2. This shows the urgent need of homogeneization of galaxy designation. Indeed, some galaxies identified in old catalogues with very poor coordinates and very poor description cannot be retrieved in a secure manner in the new catalogues. Then, giving such a name to this or that object is just a matter of convention. We should either abandon the old, inaccurate designation (this is what seems suitable to us) or decide that a given old name designates a given object (the same convention must be adopted by all databases). This requires regular exchanges and dialogues between the different existing general databases.