- Planet simulation ver1.7 -

Left-click　: The planet is added. The menu is changed.
Right-click : The menu is changed.

[Color]　　 : The color of the planet is changed.
　　　　　　　"?" is a random color.
[Track]　　 : The expression of tracks is changed.
　　　　　　　line　　　- Short line
　　　　　　　long line - Long line
　　　　　　　point　　 - Dotted line
　　　　　　　non　　　 - Non-display
[Target]　　: The planet is added in an arbitrary direction.
　　　　　　　1.The position of the planet is decided pushing the mouse.
　　　　　　　2.The mouse is dragged and the direction is decided.
　　　　　　　3.The mouse is separated.
[Random]　　: The planet is added in a random direction.
　　　　　　　The speed of the planet is changed by the click.
[Circle]　　: Yen orbit planet is added.
[Star]　　　: Addition & deletion of fixed star.
　　　　　　　When the fixed star is clicked, it is deleted.
[Size]　　　: The size of the planet is changed.
[Scale]　　 : The magnification of the screen is changed.
[Speed]　　 : The flow of time is changed.
　　　　　　　1/4 X speed from 8 X speed. As for 0, time stops.
[Reset]　　 : Reset.