COMMISSION 27 OF THE I.A.U.
              INFORMATION BULLETIN ON VARIABLE STARS
                           Number 1227

                                                    Konkoly Observatory
                                                    Budapest
                                                    1977 January 7


             REMARKS CONCERNING IZ CYGNI

We have recently found, by reference to the original plate
material, that star No. 8353 in the 1965 catalogue of suspected
variables is, in fact, identical with the 441-day Mira variable
star IZ Cygni. As the latter star appears to be of considerable
interest, we give in the following our objective-prism data near
maximum and minimum light, in all but the last instance determined 
from the infrared spectral region:

       Date (UT)      Spectral Type

     June 17, 1947         M4
     Sept.21, 1951         M10+
     Sept.1,  1954         M3
     June 13, 1956         M10
     July 7,  1959         M2e (blue spectral region)

We find the following ranges in light: m_ir=8.0-11.5;
m_pg= 11.0-17.5. The star was near minimum at the time of the
Palomar Sky Survey exposure taken on August 10, 1950. Our spectral 
and magnitude data are in good agreement with the light
elements given in the GCVS. The star's unusually early spectral
type at maximum and its very large spectral range are noteworthy,
and the object merits further spectroscopic observation. The next
maximum will occur in Aug.-Sept. 1977.


                              NICHOLAS SANDULEAK
                              WILLIAM P. BIDELMAN

                          Warner and Swasey Observatory
                         Case Western Reserve University
                            Cleveland, Ohio 44106 USA