Looking for software which can draw orbits, for a presentation

[Enjo]

Hello

I'm preparing a lecture titled "Basics of orbital mechanics in spaceflight" that will take place in Silesian Fantasy Club. I want to prepare some pictures representing orbits and planets. Jarmonik made such image using some software (look at attachment) Do you know in what software I could draw such nice images? It would be great if they were free.

Thanks

 

[Belisarius]

I don't know about graphic ware, but this guy Mike Gruntman

http://astronauticsnow.com/vp/

uses some nice animation software to show orbits around Earth. It's called AGI-SDK or so he says.

 

[Urwumpe]

Inkscape should easily be capable of doing that. I use it a lot for vector drawings

 

[Enjo]

Wow! What a great software!

This is what I've done in 20 minutes, during the learning curve (pun unintended):

TA, Urwumpe

Belisarius:
I won't be using AGI-SDK, but thanks for the link anyway. This guy shares some valuable info, which will help me prepare the lecture.