COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                     Number 2092

                                 Konkoly Observatory
                                 Budapest
                                 1982 February 23

                                 HU ISSN 0374-0676





       SPECTROSCOPIC OBSERVATIONS OF V 471 TAURI
                    (BD+16d516)



  This RS CVn type eclipsing variable was spectroscopically
observed at the Astrophysical Observatory of Asiago. Continuous
observations cover the period from November 1980 to February 1981.
Observations were achieved with the telescopes with 122 and
182 cm diameters. The first instrument is equipped with medium
dispersion prism spectrograph (40 A mm^-1 at 4340 A) and the
second one with high dispersion Reosce Echelle spectrograph
(16 A mm^-1 at 6563 A). 70 medium and 7 high dispersion spectra
were secured with the 122 cm and 182 cm telescopes. Some of the
medium dispersion spectra were obtained in a single trail mode
(Walker and Chincarini, 1968). 35 spectra were utilized in the
computer construction of the radial velocity curve (see Fig. 1.)
and the spectroscopic orbital elements were calculated.


                           [FIGURE 1]

 Fig. 1. Computer constructed radial velocity curve of V 471 Tauri


The orbital elements and their probable errors can be summarized
as:


        Elements                   Probable Errors
        V0 = 40.1 km s^-1          2.06 km s^-1
         P = 0.52118286 day         (assumed constant)
passage from
periastron = 2444970.716           0.027 day
     omega = 101d                  18.9d
         e = 0.0548                0.0275 
    a.Sini = 1.07 x 10^6 km        2.05 x 10^4
         K = 150 km s^-1           2.86 km s^-1             





Note: Complete references for this star were not repeated
    instead they can be found in Hamzaoglu, 1981.

Acknowledgements: E.H is grateful to TUBITAK for their 
encouragement.





          E. HAMZAOGLU (x) and F. SABBADIN
          Astrophysical Observatory of
          Asiago 36012 (VIC)
          Italy





(x) Permanent address: Ege University Observatory P.K. 21
                Izmir-Turkey