I want to suggest an idea for Celestia Development. I don't know if it was already discussed somewhere, but I think it would be interesting...
I'm not a expert at all in science of astronomy, and i think a lot of users of Celestia aren't too. Using Celestia, your are the observer, and nevertheless, no easy (and fully explained) quick solution to determine how you are observing universe in Celestia (or How Celestia simulates it for you). Yes, you have the render menu, very useful but manipulating things a bit strange for very basic users : what is exactly magnitude?... Yes you can go to help, or on this forum for helpful advices and go further and further...
Even for the specialist users, we can think that the celestia's observer conditions are not well precised : what about spectral windows?...
Here is the idea : what about all-done observer setting configurations that users would have only to select in a submenu in render menu?
All configurations would have several adjusted settings that determine a special configuration with a title like "See like human eyes do" or "See like a telescope does", "See like Hubble does", "See like a snake does", "See in IR"... well we can imagine a lot with current various settings, and even further settings like spectral view...
Now, the two first configurations could be in Celestia and would be made up of one setting : magnitude. But some settings could come in these configurations : like the light blurring watching human-made objects lighted by the sun (may appear with hdr, no?
)...All are only suggestions, thanks in advance.