When to Use Retrograde Motion 3D Explorer - Best Sessions and Limits
Open the Retrograde Motion 3D Explorer when you need Earth's overtake geometry that makes Mars appear to loop - synodic about 779.9 d (~26 months) and a typical arc about 72 d - without a precision ephemeris or dated opposition calendar.
A five-minute classroom demo
A five-minute classroom demo starts when you open Retrograde Motion 3D Explorer, press Near opposition, leave Sky trail on, and pause when the badge says Retrograde so students see the loop without a flat textbook figure alone.
Synodic numbers in Retrograde Motion 3D Explorer
Synodic literacy in Retrograde Motion 3D Explorer stays readable when you keep the facts panel open for about 779.9 d and about 72 d while Mars keeps a direct solar orbit - the reverse stretch is apparent, not heliocentric.
Sessions Retrograde Motion 3D Explorer does not fit
Sessions Retrograde Motion 3D Explorer does not fit are precision ephemerides, tonight constellation charts, N-body gravity, or eight-planet tours. Use Solar System 3D Explorer, Seasons Earth 3D Explorer, or Kepler Orbits 3D Explorer instead. Walk the controls in the Retrograde Motion 3D Explorer step-by-step guide.
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