How do I achieve Galaxy Type Rotation?

Guyz, i have a ellipse and if i put rotation behavior, then it just rotates at as it should be. but how to rotate that object as like the galaxy, please refer the below image?

3.bp.blogspot.com/-Y7czorI81zs/Uk4zc8Ov7iI/AAAAAAAACnQ/TZ66xQbaw1Y/s1600/Spiral_Galaxy_hd1080.gif

I just want to know about the rotation rather than particles effect of the galaxy.

Similar link in community construct.net/en/forum/construct-2/how-do-i-18/galaxy-type-rotation-107869

Advance Thanks,

WackyToaster

Thanks for your reply. However we tried using the same orbit behaviour but its not working as expected.

Can you please let us know any idea or any sample will be helpful.

Trig method

where the x radius is half the y.

Edit: nevermind

Lots of "best wishes" though.

newt

Thank you very much .This looks really awesome. But our requirement is slightly different.Please check the attached c3p file.

drive.google.com/file/d/1mJIF_FVIuUqm2Hf-wQz0tQzQeltnTnbv/view

We just need to rotate the sprite as it like its a galaxy.