COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                      NUMBER 671

                                        Konkoly Observatory
                                        Budapest
                                        1972 May 5


         NOTE ON THE SUSPECTED SUPERNOVA ANNOUNCED IN IBVS 653


An old supernova of 1954 in NGC 4027 (Bulletin Variable Stars, No. 653) was
announced. I am afraid that Dr. Lovas did not realize that many luminous
patches on the original Palomar plates become very black on the paper prints.
I compared the actual survey plates No. 1030 of April 2/3, 1954 with my newer
E and O plates PS 4639, 4640 of April 13/14, 1969 and there is no difference to
be seen from the 1954 plates. Actually on the latter Dr. Lovas' SN is several
magnitudes fainter than the Star A. His SN therefore was not a supernova but
only a badly overexposed spot on the paper prints.


April 21, 1972

F. ZWICKY
California Institute of Technology
Pasadena, California 91109. U.S.A.




                A NOTE ON HR 6773 = HD 165814


In a recent paper (Hube 1971, P.A.S.P. 83, 805.) spectroscopic evidence was
presented which suggests that the light variations of HR 6773 discovered by
Corben (1971 Sky and Telescope 42, 53.) are due to stellar eclipses. Since
then, W.P. Bidelman has privately informed the writer that the variability of
this system had been discovered previously by Strohmeier, Knigge and Ott (1964
IBVS 74) who indicated a photographic range of 0.4 magnitude in agreement with
the range found by Corben.

Further study of the published radial velocities indicates that they can be
satisfied by a period of approximately 2.248 days.


DOUGLAS P. HUBE
Department of Physics
University of Alberta
Edmonton, Alberta