COMMISSION 27 OF THE I. A. U
        INFORMATION BULLETIN ON VARIABLE STARS
                     NUMBER 231

                                Konkoly Observatory
                                Budapest
                                26 October 1967


      ON THE NONVARIABILITY OF BD +74d877


Eclipsing Binary 1098 in the Finding List= +74d877 was reported by Archer to
be an eclipsing binary of the W UMa type with a period of 4^h27^m and with
primary and secondary eclipses 0.^m30 and 0.^m18 deep respectively.

This star was observed photoelectrically on the night of October 3-4, 1967 for
3 hours in three colors and was found constant to within 0.^m01.

According to the Eclipsing Binary Card Catalogue, other observers finding no
variation of this star are Koch, van Agt and van Genderen, and Cochran. It was
suggested that attention be drawn to the fact that the variability of +47d877
seems very questionable.


DOUGLAS S. HALL
October 18, 1967
Dyer Observatory
Vanderbilt University
Nashville, Tennessee
U. S. A. 37203




Corrections to IBVS No 228: In a letter of October 11 Dr. Nancy Houk
writes that there are the following changes to be made in her Table 1:
   1. The reference (last column) for star IM Sgr should be 12, not 4.
   2. On the final page of Table 1, the spectral type of star IV Sgr
      should be M6 rather than non-M.
   3. On the same page the star BT Sgr should be omitted. Dr.
      Hoffleit has just informed her, that she had found that the
      coordinates of BT Sgr as listed in the GCVS are wrong, and
      that BT Sgr is the same variable as that designated as
      V1701 Sgr.