* "Constellation","Coordinates","e.t.c"
You can modify the display while seeing the Planetarium and the Star Atlas.
Click the color and line.

* Control
Selection of method of scrolling Planetarium, Star Atlas, world map.

[Star atlas & map are scrolled by Drag]
Drug operation of mouse's left button. (Default)

[Star atlas & map are scrolled by Click]
Click operation of mouse's left button.
Scroll that clicked point becomes center.
When the drug such as notebook computers that cannot use the mouse is not done easily, it is convenient.