Use the Run/Pause button to start or stop the animated simulation. Adjust the Simulation Speed slider to speed up or slow down the simulation (1 = real time; 31450000 = 1 second for a single Earth revolution). Drag the Simulation Time slider to directly set the current time (slider corresponds to 2000 AD...3000 AD). Press the Now button to set the current date/time to the actual date/time. Use the View Zoom slider to zoom in on the entire displayed area. Adjust the Body Size Scale to logarithmically increase or decrease the displayed size of each object; distances between object centers will still be to scale (1 = true scale with minimum of 2 pixels). Try setting View Zoom to 25 and Body Size Scale to 15 to display only the inner Solar System.
v0.03 (Mar 3, 2023) ========================================= - True Keplerian elliptical orbits are now used; orbital elements for all planets except Pluto are valid through about 3000 AD; Pluto's is valid only for the J2000 epoch. - Simulation formatted time/date are now displayed above slider. - Added Now button to set simulation time equal to actual time. v0.02 (Mar 2, 2023) ========================================= - Added Run/Pause button to start/stop the simulation. - Added Simulation time slider (corresponds to the years 2000 AD...3000 AD). - Simulation speed correctly speeds up and slows down the passage of time. - Added View Zoom slider to zoom in on entire display. - Added Pluto. v0.01 (Feb 28, 2023) ========================================= Initial shared version. Future plans: - Better handle overlapping objects when scaled up - Calculate true elliptical orbits with real-time position relative to epoch - Add dwarf planets and comets - Allow each body to be clicked on to display data - Allow bodies with satellites to be clicked on to display local orbital system with moons - Calculate and display body rotation - Display orbit paths
