COMMISSION 27 OF THE I. A. U.
             INFORMATION BULLETIN ON VARIABLE STARS
                         Number 2122

                                     Konkoly Observatory
                                     Budapest
                                     1982 April 5

                                     HU ISSN 0374-0676


               THE SPECTRAL TYPE OF RW DORADUS




  The short-period W UMa star RW Doradus=HDE 269320 has long
been considered to be of spectral type K5 (Cannon 1921). However,
reference to a low-dispersion (580 A/mm at Hgamma) objective-prism
plate taken with the Curtis Schmidt at Cerro Tololo by one of us
(N.S.) some years ago clearly indicates, as might be expected, that
the star is considerably earlier: dwarf late G is our best estimate.
This determination is in good agreement with the B-V color index of
+0.81 measured some years ago by Eggen.





W. P. BIDELMAN
N. SANDULEAK


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





References:
Cannon, A. J., 1921, Harvard Bull. No. 754.
Eggen, O. J., 1961, Royal Observatory Bull. No. 31.