Celestia Forums

When is the fly by??

Evil Dr Ganymede wrote:Problem is that (a) I think polar orbits are a bugger to get to from the ecliptic (you need lots of energy etc to get to them

You can use planets as gravity assits, like Ulysses did with: it went to Jupiter and used Jupiter to change its inclination, ending on a polar orbit around the sun...

I am starting this Sunday to study Physics in the university. I will study 3 years the I can go to work or continue studying. The system here is very strange, thats why I study only 3 years, its like teh "first title", then I can do the second one, etc...
I know it will be hars, so wish me luck...

I dont know if you know Isaac Asimov's books, but in of of them(Foundation and Earth), the characters visit a planet orbiting Aapha Centaurus A. The planet is called New Earth and I think its almost fully covered but water and has an island where all the people live...

Well, thanks...
Some time ago I saw an animated gif that showed the same effect but with pictures of the real moon... but I cant find it right now...

PD: If I remember well, the moon was in its closest position to Earth last September 22nd

1) When stars are viewed through a telescope, they appear as discs of different radii. Is the radius the star's real radius, or is it just a function of the stars brightness? First of all, no they dont appear as disk, and if they appear as disk, they shouldnt. As far as I know, the only telescope I...

I heard a couple of times that our Sun may be a part of the cluster of the Ursa mayor... is it true or not?

I dont know how many of you already know this... but the moon doesnt have the same size in our skyes every day.... and I am not talking about the time of the day when it rises, in wich it looks bigger, but its just an optical effect. But besides from that optical effect, there is something else: the...

Ok, Thank you both... I suppoused that, but I wanted to be sure...
Thanks again.

Because its very ver far from the sun, I dont think it recieves much light from it, so does it really have a day and a night or are they almost the same(very very dark day and night)?
And what about Uranus and Neptune?

Google is your friend :) http://home.t-online.de/home/OlafAmelsberg/astb-umi.htm Though that page is german, so you might not understand it. From what I can gather from my unfeasibly limited understanding of German, the page claims that Polaris is arabic for the german word "Knie". Apparent that me...

Has anyone seend it? I read that it would be visible(with small telescopes) a few days before and after that close approach, so I tryed to see it yesterday because today it would be very low in the sky and tomorrow and on the 28th it wont be visible at all. I found two stars that with Toutatis forme...

Thank you very much, it works!!!

Have you dowloaded it yoru self? The mesh is all messed up... :( And my problem in the site is that when I press Star Wars or Craft & vessels or anyother thing I get this error: "No files have been found under this category. The file(s) you are looking for could be located in one of the categories l...

Well, yesterday I was looking for Star Wars models too, but I couldnt find that one, so Thanks!!! I went to that page but I didnt find any model, maybe because i was not logged in? BTW: I dont know if I will use it in celestia. At first it is for Orbiter... but who knows? It wont be hard to put it n...

Does anybody have or know where I can get a 3d mesh of this ship? http://www.cs.bris.ac.uk/home/mothomps/episode2/Images/jedifighter_large.jpg http://www.cs.bris.ac.uk/home/mothomps/episode2/Images/ObiWan_fighter_large.jpg http://www.aulamanga.it/starwars/obi-wan-ship.jpg http://www.brianstoys.com/a...

At least they put the famous "beep"....
I love the one with the Eagle2, 3, 4, 5.... landings...

Here you have one more:

In the definition of planet "d" "HD 75732" # Rho1 Cnc , after the ring definition you put two }, you should put only one: This is yours: "d" "HD 75732" # Rho1 Cnc { Texture "gasgiant_08.*" Mass 1290 # M.sin(i) = 4.05 jupiters Radius 70000 Oblateness 0.01 In...

Have you seen this?
So funny....