Diameter of the primary mirror (sital=cervit) |
165 cm |

Focal length of the primary mirror |
492 cm |

Focal ratio of the primary mirror |
1:3 |

Thickness of the primary mirror at the edge |
22 cm |

Diameter of the central hole |
30 cm |

Diameter of the secondary mirror |
45 cm |

Equivalent focal length of the sistem |
1968 cm |

Focal ratio of the Ritchey-Chretien system |
1:12 |

Field diameter of Richey - Chrétien |
20 cm=35' |

Field diameter |
30 mm |

Focus offset from the surface of the primary mirror |
72 cm |

Image scale |
1 cm=1,75' |

Focal reducer from |
from 1/12 to 1/4
scale 1 cm = 5.25' |