Celestia 1.3.1 Mac OS X
As I understand it there is currently no video capture in this release.
Breve 1.9.1 ( Mac OS X 3D simulations of decentralized systems and artificial life ) GNU General Licence has video capture implemented under the file menu. I thought the implementation in Breve might provide a useful prototype for quicktime movie capture.
http://www.spiderland.org/breve/
I understand the limitations on time and resources.
I offer this as constructive research.
Many thanks to all those contributing to its development.