COMMISSION 27 OF THE I. A. U.
     INFORMATION BULLETIN ON VARIABLE STARS
                  Number 444

                            Konkoly Observatory
                            Budapest
                            1970 July 6





         HR 2989: A NEW DELTA SCUTI STAR

In the course of a search for Delta Scuti variables among
nearby A and F stars, the star HR 2989 /HD 62437;
m_v = 6.47; spectral type F0/, which was being used as a
comparison star in the search program, was found to vary in
brightness. The star was observed on the night of November
21-22, 1970, using a 41-cm. reflector at Kitt Peak National
Observatory. The instrumentation and observing procedure
have been described elsewhere /Percy, J.R. 1969, J.R.A.S.C.
63, 233/. The observations, made through a V filter relative 
to HR 3098, are listed in Table 1 and shown in Figure l.
The constancy of HR 3098 was determined by means of a
check star HR 2711.

The period of HR 2989 is about 0.12 day, and the amplitude
is about 0.1 magnitude, large enough so that simultaneous
spectroscopic and photometric observations might profitably
be made.

                   TABLE 1

      Observations of HR 2989; November 22, 1970

        U:T.     Heliocentric J.D.   delta V/2989-3098/
        
        10:24    2440183.933            0.121
        10:37          3.942            0.111
        10:54          3.954            0.121
        11:22          3.974            0.165
        11:38          3.985            0.174
        11:54          3.994            0.162
        12:21          4.015            0.129
        12:33          4.024            0.122
        12:55          4.038            0.099

                      [FIGURE 1]


JOHN R. PERCY
David Dunlap Observatory
University of Toronto
Toronto, Canada