COMMISSION 27 OF THE I.A.U.
            INFORMATION BULLETIN ON VARIABLE STARS
                          NUMBER 96

                                           Konkoly Observatory
                                           Budapest
                                           14 May 1965


                        BP VULPECULAE

   In the General Catalogue of Variable Stars this star has been
classified as RR Lyrae type variable. By photoelectric observations
at Budapest E. Illes-Almar found the star to undergo minima like an
eclipsing variable, thus confirming the statement of the discoverer
(Hoffmeister [1]). She has given the provisional elements:

         Min. = J.D. 243 6860.331 + 1d.938.E    [2] [3].

   Observations of faint light on Sonneberg plates yielded the
improved formula:

         Min. = J.D. 243 7438.547 + 1d.940 346.E.

   From the mean light curve the following characterizing data can
be derived:

         Algol type, A_1 = 0m.9, A_2 = 0m.4, D = 0p.1.

The observations of Strohmeier and Ott [4] are  also in accordance 
with the improved elements.

Observed times of faint light:

     J.D.       m_pg    E       O  - C

242 5831.362          -5982    -0d.035     S.O.
    6512.439           5631    -0.020      S.O.
    6545.469           5614    +0.024      S.O.
    6647.308           5561.5              S.O.
    6648.332           5561    +0.049      S.O.
    6868.522           5447.5              S.O.
    6930.399                               S.O.
    8074.410           4826    -0.027      S.O.
    8078.299           4824    -0.019      S.O.
    9114.476           4290    +0.013      S.O.


[1] AN 255. 406; 1935             [3] AZ 210. 21; 1960
[BIBCODE 1935AN....255..401H ]    [BIBCODE 1960ATsir.210...21I ]	
[2] EBC 1 - EBC 32; 1960          [4] Bamberg Veroff. V,12; 1961

                          - 2 -

                Continued

     J.D.       m_pg    E       O - C

243 4221.446    10.7  -1658    -0.007       H.
    4580.427    10.9   1473    +0.010       H.
    5224.585    10.9   1141    -0.027       H.
    5226.576    11.0   1140    +0.023       H.
    5721.355    11.0    885    +0.014       H.
    6433.446    11.0    518    -0.002       H.
    6790.450    10.9    334    -0.021       H.
    6860.331            298    +0.007       I.
    7116.458    10.7    165    +0.008       H.
    7438.547    11.3      0     0           H.
    7642.260    10.7    105    -0.023       H.
    7898.427    11.0    237    +0.018       H.
    7933.365    10.7    255    +0.030       H.
    7935.294    11.1    256    +0.018       H.
    8001.256    11.1    290    +0.009       H.
    8255.437    10.9    421    +0.004       H.
    8323.325    10.8    456    -0.019       H.
    8614.433    10.7    606    +0.036       H.

S.O. = W. Strohmeier and H. Ott; H. = H. Huth; I. = E. Illes-
Almar.


                                   H. HUTH
                            Sonneberg Observatory