Astrophysics and Space Science

, Volume 154, Issue 1, pp 1–6 | Cite as

Photometry of an active Algol-type binary HP Aur

  • Liu Xuefu
  • Cai Zhengdong
  • Tan Huisong


The short period Algol-type binary HP Aur has been studied on the basis ofUBV photometric observations. Its colour indexes were found to be (U-B)=0.14, (B-V)=0.70, and light curves show non-symmetrical and obvious photometric disturbances. Autoregressive spectral analysis and harmonic analysis for its light variations were made. The results indicate its brightness variations have the multiplet quasi-periods and low amplitudes. Its photometric solutions have been obtained using the Wilson-Devinney method. Its mass ratio is 0.5631, orbital inclination is 85.0 and it is a detached system. Its basic model has been discussed briefly.


Colour Spectral Analysis Harmonic Analysis Light Curve Colour Index 
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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • Liu Xuefu
    • 1
  • Cai Zhengdong
    • 1
  • Tan Huisong
    • 2
  1. 1.Department of AstronomyBeijing Normal UniversityChina
  2. 2.Yunnan ObservatoryAcademia SinicaChina

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