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Alcyone Ephemeris
- Version: 1.0.1
- Downloads Count: 60
- License Type: Free
- Price: Free
- Date Added: Jan 13, 2006
- Operating Systems: Microsoft Windows 2000
- Requirements: Screen Resolution 1024 x 768 or higher
- File Size: 8.1 MB
- Author:
Description of Alcyone Ephemeris
Alcyone Ephemeris is an accurate and fast astronomial ephemeris calculator covering the period 3000 BC to AD 3500. It calculates heliocentric, geocentric, and topocentric positions of the Sun (Earth), Moon, and planets in ecliptical, equatorial, and horizontal coordinates, with optional corrections for parallax and refraction; rectangular coordinates, velocity, acceleration, apparent diameter, magnitude, phase, lunar libration, orbital elements, differences for all of these, and more. In addition Alcyone Ephemeris offers a wealth of functionality: plotting ephemeris data, searching for specific values, scripting to write programs for more complex computations, saving in the as HTML files to export output to spreadsheets, word processors and web pages, and printing. The ephemeris calculation is based upon Steve Moshier's analytical ephemeris using trigonometric expansions for the earth and planets and the lunar ephemeris ELP2000-85 of Chapront-Touz and Tapront for the moon, both adjusted to Jet Propulsion Laboratory's DE404. There are further adjustments in Alcyone Ephemeris, some optional, to JPL's more recent DE406, the most accurate long-term ephemeris. A comprehensive documentation is available including tabular and graphic comparisons of calculations with DE406.
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Alcyone Ephemeris is an accurate and fast astronomial ephemeris calculator covering the period 3000 BC to AD 3500. It calculates heliocentric, geocentric, and topocentric positions of the Sun, Moon, and planets in different coordinates and more.
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