Pulsations of the SX Phe Star BL Camelopardalis

We carried out photometric observations of the SX Phe star BL Cam in 2014, 2017 and 2018 using Nanshan 1-m telescope. In addition to the dominated frequency of 25.5790(3) cd^{-1} and its two harmonics, an independent frequency of 25.247 (2) cd^{-1}, which is a nonradial mode frequency, was detected from... Show more