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Spiral Galaxy

version (868 KB) by Enkh
Spiral galaxy simulation using the density wave theory


Updated 01 Sep 2016

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This live script demonstrates a simulation of a spiral galaxy in MATLAB using density wave theory. The density wave theory suggests that the spiral arms of a galaxy are not static, but rather stars move in and out of it based on their own elliptical orbits around the galaxy, such that the arms are a wave of density flowing through the disc. It gives the galaxy its characteristic appearance where the stars rotate in orbit but the shape maintains in place.

Cite As

Enkh (2020). Spiral Galaxy (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (1)

E. Cheynet

Looks really cool ! I think it would be even better as a function.


Updated license

--reduced gif file size

--added hyperlinks to web sources

MATLAB Release Compatibility
Created with R2016a
Compatible with any release
Platform Compatibility
Windows macOS Linux