Orbits disappears in some star systems (Celestia 1.5.0)

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Cham M
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Orbits disappears in some star systems (Celestia 1.5.0)

Post #1by Cham » 06.12.2006, 15:42

I'm exploring the PSR 1620-26 system, and the orbits disappears while I move around. The typical distance between both stars are around few AU only, but yet the orbits disappears. There's a bug in the orbit display.
"Well! I've often seen a cat without a grin", thought Alice; "but a grin without a cat! It's the most curious thing I ever saw in all my life!"

chris
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Post #2by chris » 07.12.2006, 05:05

As far as I can tell, the orbit paths in this system are being drawn correctly. Can you give me a cel URL that I can use to see the problem? The orbit of A will disappear when it get's small, but I assume that's not what you're talking about.

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Post #3by Cham » 07.12.2006, 05:10

Well, the orbits disappears as soon as I'm at a distance of about 5 AU from one component. At some position, I can see the blue orbit and it disappear suddenly. According to the distances and scale, this isn't normal. I should be able to see the orbits on a much larger scale.
"Well! I've often seen a cat without a grin", thought Alice; "but a grin without a cat! It's the most curious thing I ever saw in all my life!"

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Post #4by chris » 07.12.2006, 05:14

It's working fine for me. All the orbits in the system are visible until I'm 27AU from the barycenter. Then the orbit of A disappears as expected for orbits with a small size on screen.

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Post #5by Cham » 07.12.2006, 05:32

For example, I don't have any orbit visible at a distance of about 1.25 AU from the stars barycenter, whatever the viewpoint.

If I select the "b" planet, I can see the orbit at this viewpoint (distance of 0.5 AU) :

cel://Follow//2006-12-07T05:21:17.37836 ... 51&lm=2048

But if I increase a bit the distance, the orbit disappear totally (distance of 0.8 AU) :

cel://Follow/b/2006-12-07T05:21:29.6299 ... 51&lm=2048

And apparently there's a bug with copy/paste an URL in Celestia, on the Mac. If I copy an URL in Celestia, go to my web browser and paste the URL, going back to Celestia broke the URL in the clipboard ! I can't use anymore my own URL (except clicking the code I pasted in the web browser) !
"Well! I've often seen a cat without a grin", thought Alice; "but a grin without a cat! It's the most curious thing I ever saw in all my life!"

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Cham M
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Post #6by Cham » 07.12.2006, 05:38

Another example, in the same system :

cel://Follow/PSR 1620-26/2006-12-07T05:22:57.20699?x=AID26QLMuockT8r6/v///w&y=AAg5g5lBBHU7Tz7D/////w&z=AABlOvBPPCJHRxOXAg&ow=0.829513&ox=0.144564&oy=-0.158469&oz=0.515653&select=PSR 1620-26&fov=38.300716&ts=1.000000&ltd=0&rf=628151&lm=2048

I can't see the stars orbit, while I'm just at a few AU from them.
"Well! I've often seen a cat without a grin", thought Alice; "but a grin without a cat! It's the most curious thing I ever saw in all my life!"


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