bassrat wrote:It appears to place the comet in the right place at the right time, but I cannot view it's orbit like I can with the other comets. This is a non periodic hyperbolic orbit, is that why? Or have I got this all wrong?
I could be completely wrong here, but hear me out for a moment...
When I try to view the CURRENT orbits for comets like Halley and Borrelly, I can't view the orbits for these objects either. Unless I use the END key on my keyboard to back away from the comet for a long time.
Another interesting observation concerning the orbits of these comets: The red lines which represent the orbits don't align correctly with the comets themselves. If I back away enough to see the orbit lines, and then speed time up by a factor of a 100 thousand or so, I can also see that the orbits move away from and closer to, the comet selected. The orbital paths move up and down on my screen in a wild gyration that can be as much as 2 inches away (on my CRT) from the actual comet itself.
I'm using Celestia 1.3.2 Pre7 so I don't know if this occurs in all versions or not, but clearly, there is something wrong with the comet's orbital functions.
Finally, you may just wish to make sure that you have all of the appropriate boxes checked on your view options display. You DO know that you need to check the orbit box for comets as well as the box for orbits don't you?
Like I said, I really don't know what the hell I'm talking about here, but I thought I'd try to offer *some* kind of help. If the pre-defined orbits aren't working correctly, then there ain't no telling what needs to be done to correct your comet's orbit.
Just trying to help, and I didn't see anything wrong with what you had listed above.
Let me ask you though... What do you mean by "script?" Are you trying
use a script to view the comet and its orbit? If so, where's the script?
Maybe there's something wrong there? Just a thought.
Good luck and take care, Bob