COMMISSION 27 OF THE I. A. U.
       INFORMATION BULLETIN ON VARIABLE STARS
                    NUMBER 454

                                Konkoly Observatory
                                Budapest
                                1970 July 22


         CONFIRMATION OF A SUSPECTED VARIABLE
                IN COMA BERENICES

       Variable suspect 1904 (Kukarkin, et. al., Catalogue
of Suspected Variables, Moscow, 1951) has been independently
rediscovered with the new Rodman blink microscope at the
Maria Mitchell Observatory. The period has been determined
from approximately 50 plates talen between J.D. 2438531 and
J.D. 2440766 and two Lick Sky Atlas prints for J.D. 2435136
and J.D, 2435168. The observations are satisfied by MAX =
2438887.686 + 0d472469N. The star is an RR Lyrae type ab
with a magnitude range of 13.5 to 14.7. The magnitudes were
derived from Harvard-Groningen Selected Area 56.


                     [FIGURE 1]


     I would like to thank the U.S. National Science
Foundation for the grant which made this work possible.


                                MARCIA J. KEYES

Nantucket, Massachusetts, U.S.A.
July 9, 1970