COMMISSION 27 OF THE I. A. U.
          INFORMATION BULLETIN ON VARIABLE STARS
                       Number 1013

                                    Konkoly Observatory
                                    Budapest
                                    1975 June 23


       TY Men - DETERMINATION OF NEW LIGHT ELEMENTS *



   Three color differential photoelectric observations of the eclipsing 
variable TY Men (BV 457) were made by Austin between February 1972
and October 1974 at the Mount John University Observatory. These new
observations, with scatter typically less than 0.02 magnitude (Fig. 1),
enabled us to refine the light elements quoted by Schoffel and Mauder,
(1).
   The standard photoelectric reductions were made using a computer
program developed by Schneider (2), A computer curve fitting technique
was used to generate an improved period, from which a new epoch of 
symmetric primary minimum was determined. We find
                           
            JD_min = JD 244 1353.986+0.461667d E

   The residual for the epoch of minimum given by Schoffel and Mauder
is 0.003 days. The evidence is insufficient for any study of a period
change on these elements.




R.R.D. AUSTIN           MARTIN DeGEORGE, Jr.
Mount John University   ROBERT C. FLECK, Jr.
Observatory             Department of Physics
Lake Tekapo,            and Astronomy, University
New Zealand             of Florida, Gainesville,
                        Florida, U.S.A,




References:

(1) Schoffel, E., and Mauder, H., 1967 Veroff.Remeis-Sternw.Bamberg
         VII, 60
(2) Schneider, W.H., 1975, private communication


* Rosemary Hill Observatory Contribution, No. 58.


                      [FIGURE 1]

            Fig. 1. UBV light curve of TY Men