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AstroTips.com - Astronomy Software and Amateur Observation Resources -- Downloads
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Planet Tracker is built in three modules: 1) Animations of planetary motion along the ecliptic and against the background of the Zodiac stars; 2) Split-screen animations comparing five different frames of reference, allowing any two to be compared side-by-side - the five viewpoints are: the apparent dome of the sky for a fixed time of day, the zodiac as seen from the Earth, heliocentric solar system, geocentric solar system, and a special rotating frame of reference holding both the earth and sun stationary; 3) Worksheet generator for classrooms without computers - including the features: «Basic Worksheets» (produces heliocentric and geocentric orbit diagrams and time lines for any given starting date), «Zodiac Time Line» (for any day of the year project the planet positions on that date up to the ecliptic, which runs along the center of the star chart strip at the top of the page) and «Solar Time Line».
Author(s): David Chandler and Michael Zeilik (Response@DavidChandler.com)
Version: 4.2 Filesize: 99.19 Kb
Language(s): English
License type: Demoware
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