Information Bulletin on Variable Stars
               of Commission 27 of the I. A. U.
                         Number 1              Konkoly Observatory
                                               Budapest.
                                               1961 October 4


      TWO VARIABLES OF BETA LYRAE TYPE WITH LONG PERIODS


    Recommended for spectrographic and photoelectric observations are
the two variables of Beta Lyrae type, EP Lyrae and HP Lyrae. Both
objects have been formerly classified as RV Tauri type stars according
to their periods when no spectrographic observations were available.
Objective prism plates taken with the Sonneberg 50/70/172 cm Schmidt
telescope revealed the early supergiant spectral types of both stars.

Data of the two stars:

        period   spectrum       range         max. brightness
                          primary  second.

EP Lyr  83d.15   AI + GI    0m.6 0m.2 vis.    9m.9 vis.
HP Lyr  140.75   AI + AI     0.5  0.5 pg.     10.5 pg.

Noteworthy are the secondary variations of brightness during primary 
minimum of EP Lyrae. These lead to the conclusion that the G component of
this pair is intrinsically variable.

     For further details see MVS 499-500 and 586-588 (forthcoming).


         Sonneberg Observatory of German Academy of Sciences,


                                                   W. WENZEL