COMMISSION 27 OF THE I. A. U.
           INFORMATION BULLETIN ON VARIABLE STARS
                       Number 2788

                                        Konkoly Observatory
                                        Budapest
                                        6 September 1985

                                        HU ISSN 0374 - 0676

                       BD+31deg 2641

  This star was announced to be a possible eclipsing binary by Peniche et al.
(1985).
I examined the star on 515 Sonneberg Sky Patrol Plates (JD 243 5868...
45822). Both variability and the EA-type is confirmed.

The following elements were received:

  min. (hel) = JD 2438883.457+0.8469935d. E
  (10.2mag - 11.0mag/10.85mag ph) - In addition to SA 59
  D I = 0.15P                        (Harvard/Groningen).
  D II = 0.13P                       Centre/Edge/Relation
                                    was considered (Huth, 1967).
15 Min. I and 10 Min. II were found (see Table I):

               Table I

               Min.I

JD(hel) 24..     E         O-C

35960.479      -3451   - 0.003d
37028.536      -2190   -   005
  045.486      -2170   +   005
38169.458      - 843   +   017
  849.567      -  40   -   010
  883.454          0   -   003
  933.426      +  59   -   004
39968.465      +1281   +   009
40068.389      +1399   -   012
  101.428      +1438   -   006
41181.360      +2713   +   010
  666.671      +3286   -   007
43655.421      +5634   +   003
45381.601      +7672   +   010
  493.405      +7804   +   011
46189.62*      +8626       000

              Min. II

37823.452    -1251.5   +     007
38852.555     - 36.5   +     013
39025.327    + 167.5   -     001
  379.355    + 585.5   -     017
  499.648    + 727.5   +     003
  538.609    + 773.5   +     003
  611.447    + 859.5   -     001
40531.275    +1945.5   -     008
41056.428    +2565.5   +     009
42185.443    +3898.5   -     018
45077.93**   +7313.5   -      01





* Locher (1985)
** Peniche et al. (1985)

Further particulars will be published in "Mitteilungen der Bruno - H.-
Burgel - Sternwarte Hartha".





                      HELMUT BUSCH

                      GDR - 7302 Hartha
                      Bruno-H.-Burgel-Sternwarte
                      -Zentrale des AKV-





References:

Huth, H., 1967, Sterne 1-2. 34
Locher, K., 1985, BBSAG-Bull. No. 77 [BIBCODE 1985BBSAG..76....5L ]
Peniche, R., Gonzalez, S.F., and Pena, J.H., 1985, Comm. 27. I.A.U., 
       Inf.Bull. Var.Stars No. 2690





                    ERRATUM



  In Figure 2 of the announcement on HD 50845 in IBVS No. 2710, the
wavelength interval between the arrows is 30 Angstrom, and not 5 Angstrom, as indicated.



                           J. SAHADE