## Introduction to Astronomical PhotometryCompletely updated, this second edition gives a broad review of astronomical photometry to provide an understanding of astrophysics from a data-based perspective. It explains the underlying principles of the instruments used, and the applications and inferences derived from measurements. Each chapter has been fully revised to account for the latest developments, including the use of CCDs. Highly illustrated, this book provides an overview and historical background of the subject before reviewing the main themes within astronomical photometry. The central chapters focus on the practical design of the instruments and methodology used. The book concludes by discussing specialised topics in stellar astronomy, concentrating on the information derived from the analysis of the light curves of variable stars and close binary systems. It includes numerous bibliographic notes and a glossary of terms. It is ideal for graduate students, academic researchers and advanced amateurs interested in practical and observational astronomy. |

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### Contents

Overview | 1 |

Introduction | 11 |

Underlying essentials | 39 |

Themes of astronomical photometry | 72 |

Practicalities | 161 |

Procedures | 204 |

Basic light curve analysis | 247 |

Period changes in variable stars | 279 |

Close binary systems | 310 |

Spotted stars | 341 |

Pulsating stars | 375 |

Appendix | 411 |

421 | |

### Common terms and phrases

accuracy Algol angular aperture apparent magnitude applied areal Astron Astronomical Photometry Astrophys astrophysical atmosphere Balmer basic Binary Stars binary systems bolometric brightness broadband calibration centre cepheids close binary coefficients colour compared component constant corresponding curve-fitting data sets derived detector determined diagram disk eclipsing binary effective temperature electrons emission Equation example extinction Figure filter fitting flux formula function galaxies given Hipparcos illuminance increase integrals interstellar interstellar extinction light curve linear luminosity magnitude Main Sequence mass mean measurement minima minimum narrowband noise normal observations Observatory optical optimal orbital parameters period changes phase photoelectric photon photospheric physical pixel primary procedure pulsation radial velocity radiation radii radius range ratio reference region Reidel relatively rotation scale Section solar Space Sci spectral type spot standard stars stellar surface Table telescope transmission typical UBV system variable stars variation wavelength zero