Astron. Astrophys. Suppl. Ser. 137, 113-116
C.J. van Houten - Th. Walraven - J.H. Walraven
Send offprint request: C.J. van Houten,
Sterrewacht Leiden, P.O. Box 9513, 2300 RA Leiden, the Netherlands
Received September 10, 1997; accepted December 11, 1998
Observations of OB-stars, made in 1959 and 1960 at the Leiden Southern Station near Hartebeespoortdam, South Africa, with the VBLUW photometer attached to the 90 cm light-collector, are given in this paper. They are compared with photometry obtained by Graham (1968), Walraven & Walraven (1977), Lub & Pel (1977) and Van Genderen et al. (1984). Formulae for the transformation of the present observations to those of Walraven & Walraven (1977) and Lub & Pel (1977) are given.
Key words: stars, early type -- stars, fundamental parameters (colours)
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