COMMISSION 27 OF THE I. A. U.
          INFORMATION BULLETIN ON VARIABLE STARS
                       NUMBER 269

                                  Konkoly Observatory
                                  Budapest
                                  1968 April 20


        ECLIPSING VARIABLE WITH LARGE AMPLITUDE


The Algol-type eclipsing binary S 9484 Cassiopeiae, discovered by HOFFMEISTER
(AN 289, p. 139), is remarkable because of its extraordinarily large
amplitude.

From observations on Sonneberg plates of the field 23^h09^m +52.d5 the
following elements have been found:

Min.=2430262.430+3.^d59225*E

A rough estimate yields 12.^m5-17.^m0 for the limits of light variation. As
the minimum is very narrow (D ~=0.^p09), the range is possibly still larger
than quoted above because of the flattening effect of the 60 minutes exposure
time. Thus S 9484 might well be the eclipsing binary with the largest
amplitude known.


1968 April 8
                                            L. MEINUNGER
                                        Sternwarte Sonneberg





              ON THE VARIABILITY OF IQ PERSEI

                   BD 47d920=HD 24909


This star was identified by Hoffmeister and listed in the GEVS as an Algol type
eclipsing binary with primary minimum of 0.5 magnitudes. Additional
information could not be found.

The assumed primary minimum was observed photoelectrically by us at JD
2,439,859.9366. The depth of the primary was observed to be 0.51 magnitude in
yellow light. Subsequent primary minima give a period of 6.974 days, but this
may be a multiple of the period. Specifically we have not been able to
eliminate 3.487 days or 1.743 days as possible periods.



April 11, 1968
King College Observatory
King College                                EDWARD W. BURKE, Jr.
Bristol, Tennessee 37620
U.S.A.