Celestia Forums

The default settings for Celestia give Mimas a reddish colour, whatever texture is used. This is easy to remove by editing the .ssc but I'm wondering what the rationale is - is there any evidence that Mimas is indeed reddish?

Interesting CEL: Dione eclipsing Enceladus in 2009. It's modelled perfetly by Celestia. cel://Follow/Sol:Saturn:Enceladus/2009-08-10T07:58:29.88379?x=ADCSaOv6Z7cqDA&y=ykRgw5vhppUF&z=VVD68TtOz2Lv/////////w&ow=0.739472&ox=0.014608&oy=-0.672168&oz=0.034034&track=Sol:Saturn:E...

Interesting closeup of little Telesto. It's surprisingly smooth.

http://saturn.jpl.nasa.gov/multimedia/i ... 041297.jpg

JAXA has released what they call a colour image of Itokawa.

Turns out it's ... grey.

http://www.hayabusa.isas.jaxa.jp/e/index.html

Closer still...

http://www.hayabusa.isas.jaxa.jp/e/index.html

This is a strange little world. Look at those weird, pointy hills. A result of its negligible gravity?

This mission is absurdly over-ambitious - not only will the craft study Itokawa for 2 months, but it will also land on the asteroid twice (at different spots), collect samples, release a bean-can-sized jumping mini-probe AND then return the samples to Earth. At least, that's the plan. Given JAXA's f...

Its 'bent' shape makes it look like two smaller asteroids stuck together.

The little-known Japanese asteroid probe Hayabusa is returning images of 24143 Itokawa, a 1km-long NEA.

Check out the pics!



http://www.isas.jaxa.jp/e/snews/2005/0911.shtml

Kalliope is in Jack Higgins' binary asteroid SSC file. Might be useful as a comparison.

http://www.celestiamotherlode.net/catal ... ddon_id=12

Our inarticulate friend has a point. There are no galaxies in this version! Presumably there's an additional data file that we need?

Excellent stuff!

By the way, Sylvia itself appears to have a long, elliptical shape (see link). Try using the 'bacchus.cmod' mesh instead of the standard 'asteroid.cms' to get this effect.

http://www.eso.org/outreach/press-rel/p ... 21-05.html

Asteroid Sylvia has TWO moons!

http://space.com/scienceastronomy/05081 ... _trio.html

I wonder how many more multiple asteroids are out there?

In one of the Hitch Hiker books, the 10th planet is called Rupert. I think that's a better name.

Please do this! I have questions!

Oh for god's sake, Celestians!! Don had a great idea here for a very useful project here, and now we're bogging down in a stupid 'my operating system is better than yours' debate. :x Fridger is entirely correct that some kind of standardised form would be very useful here. Why don't we try to design...

Jack Higgins made an addon with lots of binary asteroids, including Kalliope. You can find it at the Motherlode, under 'asteroids'. However, it only uses the standard asteroid meshes; I don't think Kalliope has been imaged in sufficient detail for an accurate model to be made.

Intel 82852/82855 GM/GME Graphics Controllers Driver, using Celestia 1.4.0pre6 with Win XP

Spec Lighting - works
Bumpmap/Normalmap - doesn't work, I get the 'multicoloured' effect (anyone know if there's a patch for this?!)
Ring shadows - works

This is a very good idea.

ATI Radeon 7000 with Celestia pre1.4.6 (Win XP)

Specularity - doesn't work
Bumpmaps - don't work at all
Ring shadows - don't work
More than two light sources - doesn't work

Everything else is great !

Tony, you rock. Thanks for explaining this so simply and clearly. So, as Neil and friends travel to the Moon in Apollo, it gets greyer and greyer as it starts to fill their field of view, and their eyes increasingly adjust to the Moon rather than the dark sky...? Thanks again. Now I can get some sle...

OK, so apparent colour is subjective depending on the background. That makes sense. But ... imagine you're Neil Armstrong on the moon. You're looking at the lunar landscape and the dark lunar sky. Is the landscape shining bright white compared to the sky? Or does it look grey? My guess would be grey...