The star BL Camelopardalis (GD 428, GSC 04067-00471, V=12.92, B=13.1), is a SX Phoenicis pulsating variable showing a high amplitude variability (300-350 mmag), with a very clear period of 56.3 min, that has being recently studied by Fauvaud et al. (2010). They show that the observed variability is due to a clear and single pulsation, as expected for these type of pulsators. It was discovered as a variable star on 1976 by Berg and Duthie (1977).
@article{arxiv.1103.3070,
title = {Spectroscopy of BL Cam - Observations},
author = {M. Alvarez and R. Michel and L. Fox-Machado and J. P. Sareyan and S. Fauvaud and G. Tovmassian},
journal= {arXiv preprint arXiv:1103.3070},
year = {2011}
}
Comments
1 page, 1 figure, to appear in proceedings of XIII Latin American Regional IAU Meeting, Morelia-Michoacan, Mexico 2010, RevMexAA(SC)