Hi, I'm a new user on Wolfram Mathematica, and I'm currently working on a problem about planet orbitals. I calculated out the shape of the orbitals, and graphed it out through a serires of equations. My graph looks something like this:
![the blue and orange circles are my orbitals](http://community.wolfram.com//c/portal/getImageAttachment?filename=orbit1.png&userId=1422119)
The improvements I want to make are:
- relocate the coordinate axis so it would be centered at the original point;
- add arrows to the orbital to show the direction of the planet's motion;
- probably add a spot in the middle (as the sun).
Thanks a lot !