Trace planet, comet or asteroid path

Hi!

It would be nice to create a plugin that traces an asteroïd, planet or comet path between two dates, plot it on the screen and save the path trace for futur use (such as the constellation lines).

The options to implement would be :
- list objects to show
- dates/times from - to
- time step between two labels
- label composition (to choose from object name, date, time, visual magnitude, size)
- color of the path line
- show/hide legend

Then a show/hide window that lists out all the paths saved and shows/hide/delete the selected paths.

Fred