Physics And Universe

The Yerkes spectral classification

Posted by Physics And Universe | Jun 14, 2013 | Stars |

The Harvard classification only takes into account the effect of the temperature on the spectrum....

Posted by Physics And Universe | Jun 13, 2013 | Stars |

E. Hertzsprung and H. Norris Russell studied the relation between the absolute magnitude (or...

Posted by Physics And Universe | Jun 12, 2013 | Stars |

The Harvard Spectral Classification is based on the absorption lines (i.e. bark lines) in the...

Posted by Physics And Universe | Jun 10, 2013 | Stars |

The spectra of stars are classified on the basis of the strength of the spectral lines. In 1666...

Posted by Physics And Universe | Jun 9, 2013 | Stars |

Associations 1. It is the group of very young (newly born stars) stars that are in the process of...