COMMISSION 27 OF THE I.A.U.
              INFORMATION BULLETIN ON VARIABLE STARS
                           Number 1232

                                                    Konkoly Observatory
                                                    Budapest
                                                    1977 January 25


      Theta2 TAURI A POSSIBLE NEW delta SCUTI STAR

Photoelectric observations of Theta2 Tauri (HR 1412) were 
obtained during a 3 hour period on 31 December 1976 with the 40 cm
reflector on Tortugas Mountain using a dry ice cooled 1P21. 
Observations were made in V only using Theta1 Tauri as the comparison
star. Theta2 Tauri has been listed as a member of the Hyades by both
van Bueren (1952, VB72) and van Altena (1966, VA491).
   The variability had an amplitude of approximately 0.03 
magnitude with a period of 0.07 day. Thus the star seems to belong
to the delta Scuti class. Using the (b-y) color index as listed by
Lindemann and Hauck (1973) and the P-C-L relation for delta Scuti
stars given by Breger and Bregman (1975) one finds the absolute
magnitude of Theta2 Tauri to be 1.26 magnitudes. This is comparable
with the spectral classification of A7 IV as given by Iriarte
et al. (1965).
   Further observations are needed to confirm the variability.


                                       STEPHEN HORAN

                                       Department of Astronomy
                                       New Mexico State University
                                       Las Cruces, New Mexico 88001
                                       U.S.A.



References:

Breger, M., and Bregman, J.N. 1975, Ap.J., 200, 343 [BIBCODE 1975ApJ...200..343B ]
Iriarte, B. et al. 1965, Sky and Telescope, 29, 21
Lindemann, E. and Hauck, B. 1973, Astron. Astrophys. Suppl. 11, 119 [BIBCODE 1973A&AS...11..119L ]
van Altena, W.F. 1966, A.J., 71, 482 [BIBCODE 1966AJ.....71..482V ]
van Bueren, H.G. 1952, B.A.N., 11. 385 [BIBCODE 1952BAN....11..385V ]


                         [FIGURE 1]

   Figure 1. The light curve of Theta2 Tauri. Each point represents
   a single magnitude difference in the sense variable
   minus comparison.