SIMBAD references

A multifrequency analysis of the SX Phoenicis star BL Camelopardalis is presented on the basis of new high-speed photometry, along with fitting a total of 136 maxima. BL Cam is a multiple periodic pulsator. We find f₀=25.5768, f₁=25.2982, f₂=25.8622, f₃=31.5912, f₄=25.1065, f₅=25.5147 and f₆=25.6188cycle.d^–1 together with the harmonics 51.1513 and 76.7268cycle.d^–1 and combination frequencies f₀+f₁, f₀+f₂ and f₀+f₃. The new frequency solution represents the light curves of BL Cam quite well. The observed minus calculated (O-C) analysis indicates that the fundamental frequency is in good agreement with the results of Fourier analysis.