Celestia Forums

http://www.space.com/scienceastronomy/0 ... phere.html
CAN THIS BE A REQUEST FOR 1.5?

Well, this was known for some time. All the Galilean satellites have very thin atmospheres: Europa and Ganymede have oxygen atmospheres (probably produced by the decomposition of water by Jovian radiation). Callisto has an atmosphere containing carbon dioxide and (probably) oxygen: the oxygen has not yet been directly detected but is inferred from electron density measurements and may actually be the main component of the atmosphere (ref).

These atmospheres are incredibly thin however, modelling them seems a bit like overkill.

Chaos,

You may not have read the article he's linking to.

Io's atmosphere completely freezes out at night, except for the hot gasses being ejected by the volcanoes.

The new information is that they used the night-side aurora to estimate just how much gas the volcanoes are ejecting at night -- which is about 1-3% of the day-side atmosphere.

In other words, it'd be nice if Celestia could simulate atmospheres which are only present on the day-side of a body.

Well I had read the article, but you may not have read that conj did not specify what exactly they wanted implemented. Furthermore, going on just the topic title the emphasis was on the existence of the atmosphere itself (which has been known for some time), not its freezing-out properties.

selden wrote:In other words, it'd be nice if Celestia could simulate atmospheres which are only present on the day-side of a body.

hehehe.... yeah... that WOULD be cool...

chaos syndrome wrote:...going on just the topic title the emphasis was on the existence of the atmosphere itself...

Indeed, that's what I thought he was speaking of.