Celestia Forums

Hello.

Please, I like to know where I found the Celestia's equations, like magnitude, orbits, etc. And understand what is Mean Longitude Longitude Of Pericenter, etc.

Anyone know where I found this?

So much thanks.

The things you're asking about are basic concepts of astronomy. If you haven't already, you need to purchase an introductory college-level textbook on the subject, or investigate taking a course at a local school.

For what it's worth, there are quite a few pages on the Web where there are diagrams showing how the orbital parameters like longitude and pericenter are related to one another. One is at http://www.lns.cornell.edu/~seb/celestia/orbital-parameters.html