I've uploaded an updated version of the Lua-summary for Celestia. It should match the current state of CELX as in CVS, so there are even some methods documented which aren't in 1.3.2pre7:
- celestia:getminorbitsize()
celestia:get/setminfeaturesize()
observer:cancelgoto().
You can find it here: http://www.h-schmidt.net/celestia/lua-summary-1.1a.html or via my Celestia-page.
Harald