Celestia Forums

Thanks to all who helped out with this one. I finally have it solved. I updated the NVidia drivers (especially OpenGL) and that took care of the problem. The moral of this story is even though you have a brand new (3 weeks old) computer, never, ever trust that the latest drivers have been installed!...

Selden, It may be, but I'm not so sure. If the computer has been off for a while and I start up Celestia just after starting the computer, I see this happen. If this is the case, does anyone know a way to force the clock rate on the card to a slightly slower rate so this doesn't happen? As an additi...

I'm not too sure wether this is better posted in the Users forum or the Bugs forum. I'm guesing that since I haven't heard anyone else mention this, it may not be a bug, and just a problem with my setup. When I am either running time faster than realtime, or am moving from one object to another in t...

Fridger et al, Sorry to bring this up again after a few weeks (thats what one gets for moving office :? and being on vacation :D ). You are right in noting that there has been a color shift in posted images. Unfortualtely, NASA is notorious for procesing images to make them look the most spectacular...

Chris, As always, wonderful improvements. I did notice looking at the new comet tails that the tail originates ON the nucleus of the comet, with the nucleus at one end. In reality, the nucleus is buried inside the head (or coma) and the coma is blown back into the tail by the solar wind. Ideally, yo...

Chris, Yes it is a Rage 128. Yes I do get a pretty massive slowdown when shadows are on, but only when the shadow falls on a planet (or planet shadow on satellite). I am also 99.999% certain that I am running 1.2.4 and not one of the pre-releases. If ther is anyting I can do to test to help out, let...

For a larger star database, there is always the Tycho 2 catalogue, with 2.5 million stars in it. This is a revision of the data released at the same time as the Hipparcos catalog. Tycho was a second "mission" that used data from the scanners on the Hipparcos satellite to create less precise parallax...

A related problem I am still having is that when I go to a ringed planet (like Saturn or Uranus), the frame rate drops precipitously when panning and rotating around those planets. Typically, the closer and the more of the rings that are showing (i.e. more face on), then the slower it runs. When zoo...

Hi, A suggestion would be to have Chris write to the folks at Sky and Telesccope. They routinely run mini-reviews in a software and new product section every month. I recall seeing shareware and freeware there... not just commercial products (those usually get full reviews in the magazine). It would...

The Science article on the orbital integration of 1950 DA came out today. I have had an opportunity to read the article, and can say that the investigators involved took painstaking care to calculate the future position of the asteroid. To begin, astrometric positions going back 50 years, in combina...

OK, I updated the drivers and it helped... some. It is still pretty sluggish when there are rings present, and the more of the rings you can see, the worse it gets. Also, I'm using Win2K, so the XP problem, as far as I can tell, isn't bugging me. Any further input that anyone can provide would be ap...

I don't REALLY think that it could be the system as it is really new. P4-1.6GHZ, 512mb ram, and an ATI Rage 128 PRO with 32 megs of ram. Again, I did not have this problem with 1.2.2! I also downloaded the 1.2.4 preview last night and had the same problem with that as well. Also, and I should have m...

I looked over the bug reports and didn't see any reference to this, so I'll pass it on.... Whenever I look at a planet with rings (Saturn and Uranus), I notice that the more of the rinsg you see the (significantly) slower Celestia runs. It actually gets almost impossibly slow to use. It gets down to...

A gravitational peturbation is the only way you can really change an orbit (excluding things like the precession of Mercury's orbit, or any body that passes really close to the Sun) and while Toutatis is subject to this (the laundry list of close approaches should be an indicator of this), I don't s...

Hello, I was trying to create the future near flyby of Toutatis to the Earth on 2008 November 9.51 (0.05025 AU). I could never get the asteroid anywhere near the Earth. Is Celestia not set up to place these objects accurately (the small bodies) or am I just doing something wrong? Fantastic software!...