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Naturwissenschaften

, Volume 86, Issue 5, pp 234–234 | Cite as

A Simple Error Formula for the Lunar Ephemeris of Regiomontanus

  • P. Brosche
  • W. Kokott
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Abstract.

The errors of the lunar ephemeris of Regiomontanus are a function mainly of lunar age. This is because the "variation" in the modern theory has no counterpart in ptolemaic theory. In addition to this sinusoidal error constituent (with zero point at syzygies and an amplitude ±0°.66 at the first and last quarters), there is a constant error due to longitude inconsistencies and a random part ±0°.5 from various sources.

Keywords

Modern Theory Constant Error Random Part Error Formula Simple Error 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • P. Brosche
    • 1
  • W. Kokott
    • 2
  1. 1.Sternwarte der Universität Bonn, Bonn, GermanyDE
  2. 2.Institut für Geschichte der Naturwissenschaften, Universität München, Munich, GermanyDE

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