COMMISSION 27 OF THE I. A. U.
       INFORMATION BULLETIN ON VARIABLE STARS
                    NUMBER 777

                                     Konkoly Observatory
                                     Budapest
                                     1973 March 21

       S10760 - A VERY DISTANT RR-LYRAE-STAR

On plates taken with the Tautenburg 134cm Schmidt telescope
I discovered an RR-Lyrae-star (S10760) with P = 0.62722d (Mitt.
veranderl.Sterne 6, 37). Its B-magnitudes were measured to be
in the range 18.9m to 19.9m. The interstellar extinction can
be neglected (.Pfau, AN 287, 97) in this way the distance of
the star can be estimated from m-M = 19m to be 63 kpc.



       TWO NEW VARIABLE EXTRAGALACTIC OBJECTS

The nebulous object 510721 found by Meinunger and Richter
(Mitt.veranderl.Sterne 5, 139) on Tautenburg plates is 
identical with the radio source No. 54 of the 5C3 catalogue
(Pooley, 1969: MN 144, 101).
The object S10765 (Meinunger, Mitt.veranderl.Sterne 6, 37),
found on Tautenburg plates, too, appears slightly nebulous
on the best plates. Radio emission was as yet not detected.
The character of the brightness variations of both objects
can be explained by supernova explosions, a hypothesis 
already suggested by Kurochkin (IBVS 743) in the case of 3C 446.





                            L. MEINUNGER
                  Akademie der Wissenschaften der DDR
                   Zentralinstitut fur Astrophysik
                       Sternwarte Sonneberg