Astronomy


  • Astronomical and Navigational Almanacs
    Astronomical Applications Department of the U.S. Naval Observatory.

    Products - almanacs, software, and web services, precise astronomical data for practical applications, for the defense, scientific, commercial, and civilian communities.

  • Basics of Positional Astronomy
    By: Juergen Giesen

  • How to Compute Planetary Positions
    By: Paul Schlyter, Stockholm, Sweden

  • Julian Date Converter
    By: U.S. Naval Observatory
    Astronomical Applications Department

  • Astronomical Software for Microcomputers
    Sky & Telescope

  • Astronomy Formulas
    James Q. Jacobs, 1998

  • Royal Observatory Greenwich
    The Equation of Time
    The Equation of Time due to Obliquity
    The Equation of Time due to Unequal Motion

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