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Wierd...

Posted: 17.04.2002, 06:42
by Rassilon
Check out the earths orbit beyond the 600th century...

http://cybermindtraveller.freewebspace.com/pics/earth_orbit.jpg

And when you get too far...the number goes negitive...I suspect because it passes the allocation allowed for the assigned variable...lol and earth ends up ~700000 ly from the sun :mrgreen:

i.e. integers are in a range of -32767 to 32767...

RE: Weird

Posted: 20.04.2002, 23:45
by cweisbrod
The orbits are incorrect for extreme dates because the orbital computations use a finite number of periodic terms. In general, it is mathematically impossible to know the position of any planets for extreme dates. The computations are optimized to provide very good accuracy for a finite period of time. But ultimately, they blow up miserably.

Posted: 22.04.2002, 10:02
by Buzz
We'll have interesting seasonal variations!

Posted: 22.04.2002, 17:25
by Sum0
I noticed that Earth gets very close to the sun in Celestia's future... so I went there and zoomed into the surface. Then I rotated the camera round to see the sky... and nearly fell out of my chair! The sun filled half the sky...

Posted: 23.04.2002, 00:12
by Rassilon
Sum0 wrote:I noticed that Earth gets very close to the sun in Celestia's future... so I went there and zoomed into the surface. Then I rotated the camera round to see the sky... and nearly fell out of my chair! The sun filled half the sky...


You should tweak the files...move the earth around Barnards Star to get a glipse of what it would look a billion years or so from now...

Of course the earth would be stripped of its atmosphere and look quite hellish in theroy ;)