First step :
![Image](http://nho.ohn.free.fr/celestia/Cham/structure1.jpg)
Adding some details :
![Image](http://nho.ohn.free.fr/celestia/Cham/structure2.jpg)
Building up the command center (some parts are wrong and will be updated) :
![Image](http://nho.ohn.free.fr/celestia/Cham/structure3.jpg)
EDIT : Here's a download link to the model. WARNING : The model has a very HIGH resolution (LOTS of details) and will probably slow down your Celestia to an unacceptable level. You need a powerfull computer, a large screen and FSAA (hardware antialiasing) to use this model. If you don't have FSAA and a good video card, don't bother downloading the model, it's not worth it !
http://nho.ohn.free.fr/celestia/Cham/SS_Kepler.zip (14.9 MB zip file)
If you use the model, please, tell me your frame rate in Celestia, and if you have antialiasing, so I can know if it's really worth it to make other models of that resolution.
If your system can't support the above version, here's a link to a lighter version, with MUCH less details (if it still can't work properly on your system, then I'm really sorry) :
http://nho.ohn.free.fr/celestia/Cham/SS ... _Light.zip
Here's a link to three smaller variations models :
SS Copernicus : (a bit smaller than SS Kepler)
http://nho.ohn.free.fr/celestia/Cham/Copernicus.zip (13.2 MB zip file)
![Image](http://nho.ohn.free.fr/celestia/Cham/Divers/copernicus.jpg)
SS Carl Sagan :
http://nho.ohn.free.fr/celestia/Cham/SS_Sagan.zip (10.6 MB zip file)
![Image](http://nho.ohn.free.fr/celestia/Cham/Divers/sagan.jpg)
Courier :
http://nho.ohn.free.fr/celestia/Cham/Taxi.zip (9 MB zip file)
![Image](http://nho.ohn.free.fr/celestia/Cham/Divers/courrier.jpg)