Celestia Forums

I found that when you go forward in time that the moon starts crashing into the earth
Well i was watching the discovery channle and i found out that the moon isent going to hit the planit it is going to fly off!!!
this would have to be put into celestia or atleast fix the moons orbit.

if anybody noes haw to do this then pleas tell me
thank you!

the moon crashing into the earth in celestia is not a misconception on the programmer's (chris') part. it's just a bug. i'm very sure chris knows the moon is moving away. this is fairly well-known among astronomers, and i'm assuming chris is an astronomer.

thank you for telling me!
by the way you can fix the moon by getting red of the moons custum orbit and just reseting the semy major axis
The moon dosent wable or cresh

but this won't predict eclipses properly i think (getting rid of the custom orbit tag).

http://www.celestiaproject.net/forum/viewtopic.php?t=1241

Please read the posts before posting any bug reports.

I will ignore the post abov this one

Now it wont predict the eclipses proporly but it will stop the moon from crashing, and if you use the moons custom orbit on any other planit or moon it will do the same thing. The stupid file is buggy can somebody just replace the file insted of trying to cover it up with another .scc file

If anybody has a new moon orbit file put it hear.

P.S. Make shour it slowly moovs away from earth untill it just flys off, then the earths axsis will wobble like hell.

Auscreely,

Your description of the moon's future doesn't match anything I've read. Can you supply a reference?

My understanding is that the diameter of the moon's orbit will stabilize when its period is the same as the Earth's rotational period. That'll be several billion years from now when they're both about 45-50 of our current days in length. But the sun will have become a red giant by then, anyhow...

You mack an intoresting point, the stars dont adge.
Shoudent all of the stars eventulay tern into red giants and then wight dwarvs and then int nothing.

but then you coul make the bigger stars tern into black holes.

Aus',

Well, the way stars age is rather more complicate than what you mention, but you're right: it'd be nice if Celestia could eventually include ways to show all the stars aging appropriately.

Right now the only way to do is with the new Beginning and Ending directives in .SSC files, replacing their surface textures over a long period of time. Doing that for a few example stars might be a fun project for someone. (hint, hint).

It'd take some research, of course: learning about the Hertzprung-Russell diagram, ratios of masses to evolutionary rates, etc.

selden wrote:Aus',

Well, the way stars age is rather more complicate than what you mention, but you're right: it'd be nice if Celestia could eventually include ways to show all the stars aging appropriately.

Right now the only way to do is with the new Beginning and Ending directives in .SSC files, replacing their surface textures over a long period of time. Doing that for a few example stars might be a fun project for someone. (hint, hint).

It'd take some research, of course: learning about the Hertzprung-Russell diagram, ratios of masses to evolutionary rates, etc.

Why not

I thought about doing this with a program of sorts that would script it to be a smooth transition...This of course would require a rather large ssc file so programming would be the only feasable method timewise