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《中国天文和天体物理学报(英文版)》 1986-01
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The Photoelectric Observations of Seventeen Variables Announced by Archer

Tan Huisong Zhang Zhousheng Zhang Yunlin (Yunnan Observatory, Acadcmia Sinica)  
Seventeen of the 24 variables in Com., announced by Archer (1959), were observed in Feb., and Mar. 1984, with an UBV photometer attached to the 91 em reflector at McDonald Observatory and a V colour photometer attached to the 35 cm reflector at Yunnan Observatory. The indentifications of the observed stars are listed in Table 1 and shown in Fig. 1. The results are drawn in Fig. 2.No variation larger than 0.m07 in V magnitude was found for all of these stars, and we arrived at the conclusion that No. 3, 4, 7, 14, 16, 17, 18, 19, 21, 22, and 23 are not variables, thoughbeing classified as by Archer, for our successive observations for each one covered an interval longer than a half period given by Archer.The authors are greatly indebted to McDonald Observatory for scheduled telescope time on this topic.
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1 Tan Hui-song Pan Kai-ke Zhang Zhou-sheng (Yunnan Astronomical Observatory, Academia Sinica, Kunming 650011);HD105020 PROBABLY IS A BINARY WITH A PERIOD OF ABOUT TWENTY DAYS[J];Acta Astronomica Sinica;1993-02
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