Celestia Forums

How can I get Microsoft Word to associate cel url calls to Celestia 1.3.2 in OS X. Each time I try to open a cel:// hyperlink in Word I get "The address of this site is not valid. Check the address and try again." Last I heard, there's still no way to use the Mac version of Celestia as a URL opener...

It sounds as if we'll have to wait for future encounters to have radar images that overlap with high-resolution infrared images for context. Which I should have expected. Cassini has no articulated scan platform; the whole craft has to turn to point its instruments, so it can't use the big dish for ...

I'm reminded of Triton by these pictures. No cantaloupe terrain, but there are those dark spots/streaks on the lighter areas. Aren't Triton and Titan pretty much identical, other than the obvious size and atmospheric differences? The light areas look Triton-esque to me, too, but it's so blurry that...

I wonder about that big dark feature. (Xanadu?) It looks like an ocean with some islands in it, but it is supposed to be a continent, isn't it? The edge looks very much like a coastline from a distance, but close up, the border isn't that sharp. Could the blurriness result from a sludgy substance, ...

I applied the same massive-unsharp-mask treatment to that closer-up image that JPL just released. It looks like some of those light spots in the dark area have wispy tails, as if material is/was blown off of them. And there's something that looks like a crater with a teardrop-shaped extension, kind ...

Oh, and lookie here-- hot off the high-gain antenna:

http://saturn.jpl.nasa.gov/cgi-bin/gs2.cgi?path=../multimedia/images/titan/images/pia-titan-1-2.jpg&type=image

The same area, closer up...

Matt McIrvin wrote:That last picture was actually from the first flyby a few months ago.

Referring here to szymaski's last post. I see Chris beat me to the Photojournal link.

That last picture was actually from the first flyby a few months ago. Here's one from a few days ago-- someone at JPL did the same trick I just described, only with higher-resolution versions, and then they unsharp-masked it afterward: http://photojournal.jpl.nasa.gov/catalog/PIA06125 Do check out t...

An image-processing trick I sometimes do is to either subtract or divide one of the featureless-looking images from one of the images taken with the surface-detail-revealing filter (if you subtract, you first need to dim the subtraction image to prevent the subtraction from blanking everything out c...

pick a flower and you've moved the farthest star". The g field approaches, but never reaches 0. I'm not sure thats true. At some point it must dip low enough that its effect is below one quantum of energy. I'd say the biggest caveat is that the gravitational effect of your picking that flower only ...

The odds have been calculated; from a famous article by Max Tegmark, referenced on this page, http://www.cliftonunitarian.com/toddstalks/paralleluniverses.htm This page is interesting, but it's really about metaphysics. The author (not Tegmark) does go off the rails a little with his speculations a...

So: a constructed reflective surface composed of glass beads in a reflective matrix, like one of those road-signs that "lights up" in your headlights. Walking around in the city, I've often seen those rainbows caused by reflective road paint. They're easy to see when the stripes on the road have ju...

All this stuff is completely fictional, so it could act any way the author wants it to. Of them, the wormhole method is probably the closest to having actual physics behind it. But even there, nobody knows how to make a stable, usable wormhole without types of matter/energy not known to exist in the...

By the way, while I was doing this I noticed that the Pleiades looks elongated from the side. It seems more likely to me that this group is roughly spherical in distribution, and that our uncertainty about the distances of the individual stars has had the effect of scattering their positions radial...

I've got a 2002 Dual G4 Quicksilver with a Radeon 7500 (downgrade from the stock nVidia card being sold at the time), OS 10.3.5. I think it's a 32MB card. The video card's probably the weakest thing about the system. Celestia generally runs fine, except that I can't see atmospheric haze, bump maps, ...

...That said, I should add that I know little of OpenGL, and it's possible that there is some API-specific reason it couldn't be done this way, in which case disregard the preceding.

The fully circular pattern surrounding the pole is caused by a defect in Celestia. Shadows are being projected through the surface to the far side of the sphere. This effect is visible when you turn on "ambient light" -- either to low or medium or in a script. It's caused by ring shadows and eclips...

See http://www.snopes.com/history/american/linckenn.htm for point-by-point fact-checking.

So if anyone knows where I could find meshs or textures of the Halo, Pillar of Autumn, etc, I'd be very grateful. :) Also, I had the specific dimensions of Halo, but I lost them, so I'm guessing on the width and height of the ring. All I know is that its 10,000km diameter. EDIT: also, I'm using gma...

Well, on the two last pictures of the first page, it doesn't make any sense. I see many distorded dark ovals on Saturn. Rings can't project shadows like these, unless the field of view is really that distorded. Something appears very wrong on those pictures. What may be disturbing you is that the s...