Alcyone Ephemeris is an accurate and fast astronomical ephemeris calculator covering the period 3000 BC to AD 3000. It calculates heliocentric, geocentric, and topocentric positions of the Sun (Earth), Moon, planets, small bodies (asteroids, comets), and fixed stars in ecliptical, equatorial, and horizontal coordinates (including angular differences between two bodies), with optional corrections for parallax and refraction; rectangular coordinates, velocity, apparent diameter, magnitude, phase, lunar libration, orbital elements, differences for all of these, and more. In addition Alcyone Ephemeris offers a wealth of functionality: star chart generation, 3D-visualization of heliocentric and planetocentric orbits, plotting ephemeris data, searching for specific values, saving as Excel, HTML, XML or text files to export output to spreadsheets, word processors and web pages, printing, and report generation (PDF, HTML, RTF). 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-Touzé and Chapront 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. Alcyone Ephemeris is fast. With an Athlon XP 2000+ processor, 100 calculations of geocentric longitude, latitude, and distance for the sun, moon, and all planets take about 2 seconds. A comprehensive documentation includes tabular and graphic comparisons of calculations with HORIZONS epehemeris genarator.
» version 3.5 - posted on 2009-05-23
EULA - End User License Agreement
Alcyone Ephemeris Copyright Notice
Program designed and developed by alcyone software. For more information please visit our World Wide
Web pages at http://www.alcyone-ephemeris.info .
Please read these conditions before using the software. If you use the software you agree to
become bound by these conditions. If you do not wish to do so, do not use the software.
This licence grants you the right to use the software, subject to the restrictions listed below
and the disclaimer relating to warranties, support and damages.
This software is provided on an "as is" basis, without any other warranties, or conditions, express
or implied, including but not limited to warranties of merchantable quality, merchantability or
fitness for a particular purpose, or those arising by law, statute, usage of trade or course of
dealing. The entire risk as to the results and performance of the Product is assumed by you. Neither
we nor our dealers or suppliers shall have any liability to you or any other person or entity for any
indirect, incidental, special or consequential damages whatsoever, including but not limited to loss
of revenue or profit, lost or damaged data or other commercial or economic loss, even if we have been
advised of the possibility of such damages or they are foreseeable; or for claims by a third party.
You may have other rights which vary from state to state.
This licence gives you the right to use this software for a period of 60 days but all rights not specifically
mentioned in this agreement, including ownership rights, intellectual property rights, trademarks and
copyright, are reserved by alcyone software. If you want to use the software after the 60-days-period
you must register your copy of the software. You may not decompile, reverse engineer, disassemble or
otherwise reduce the software to a human perceivable form. You may not modify, rent or resell for profit
the software, or create derivative works based upon the software.
Please, feel free to redistribute the software, but any redistribution has to be free of charges. No
redistribution without these copyright-notes.
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