Worldbuilder needs help

[ArtificialDeity]

How can I take snapshots of the Celestia window/screen - and save the images to my HDD?
How do I create fictional solar systems?
How do I create my own original suns and planets?
I want to use Celestia to creat space scenes of my own contrived systems and save the images as JPEGS or BMPS

Also - can anybody point to some freeware (NOT SHARE WARE, TRIALWARE, OR PERSONAL USE ONLY WARE) - that I can use to create repeatable terrain,or - create maps of my own planets???

[buggs_moran]

How can I take snapshots of the Celestia window/screen - and save the images to my HDD?
How do I create fictional solar systems?
How do I create my own original suns and planets?
I want to use Celestia to creat space scenes of my own contrived systems and save the images as JPEGS or BMPS

Also - can anybody point to some freeware (NOT SHARE WARE, TRIALWARE, OR PERSONAL USE ONLY WARE) - that I can use to create repeatable terrain,or - create maps of my own planets???

1) F10 to screenshot
2 & 3) Search the forum, this has been asked many times...