On 6/19/2010 3:57 PM, Reactor wrote:
>    In any case, it would not be possible to have anything in geostationary orbit,
> but around Jupiter.  I assume you mean an orbit around Jupiter that tries to
> keep the earth in line of sight at all times?

No, I mean in orbit around Jupiter.


-- 
http://isometricland.com

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SharkD <pos### [at] gmailcom> wrote:
> On 6/19/2010 3:57 PM, Reactor wrote:
> > I assume you mean an orbit around Jupiter that tries to
> > keep the earth in line of sight at all times?
>
> No, I mean in orbit around Jupiter.
>
>
> --
> http://isometricland.com


For some reason, I feel like I know less about what you want after reading that.
 Do you mean a Jovian stationary orbit?

Can you describe in more detail?


-Reactor

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On 6/19/2010 2:06 PM, SharkD wrote:
> I want to place my spinner colony in a geo-stationary orbit around
> Jupiter. Anyone have any good looking solar system scenes that I might use?
>

I ended up stealing a planet texture from here:

http://www.midnightkite.com/render.html

The position of the planets and sun, however, I had to make up 
completely arbitrarily. :(

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"SharkD" <pos### [at] gmailcom> schreef in bericht 
news:4c1f6aa2$1@news.povray.org...
> On 6/19/2010 2:06 PM, SharkD wrote:
>> I want to place my spinner colony in a geo-stationary orbit around
>> Jupiter. Anyone have any good looking solar system scenes that I might 
>> use?

Sorry for not answering earlier. On the NASA site, you can find the wrapable 
images for all solar system planets and most satellites:
http://photojournal.jpl.nasa.gov/targetFamily/Jupiter

Thomas

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On 6/20/2010 12:19 AM, Reactor wrote:
>   Do you mean a Jovian stationary orbit?

Yes. And I'd like the sun and planet positions/sizes/orientations to be 
proportionately correct with respect to each other. (They don't need to 
be at the same scale as the station though. I'm willing to fudge that 
bit to keep POV-Ray from choking on the huge scale differences.)

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On 6/22/2010 7:50 AM, Thomas de Groot wrote:
> Sorry for not answering earlier. On the NASA site, you can find the wrapable
> images for all solar system planets and most satellites:
> http://photojournal.jpl.nasa.gov/targetFamily/Jupiter
>
> Thomas
>
>

How about code for the orbital characteristics? It's been a while since 
I tried (and never entirely succeeded) doing the calculations myself.

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"SharkD" <pos### [at] gmailcom> schreef in bericht 
news:4c22c7f0$1@news.povray.org...
>
> How about code for the orbital characteristics? It's been a while since I 
> tried (and never entirely succeeded) doing the calculations myself.
>

I have never done that really seriously. I remember having done only one 
scene with planets in 2006 (an unfinished project, as most are) with a view 
of Neptune from Triton. This time as an illustration of a scene from Samuel 
Delany's Nova.

The only thing I did was to scale down the orbital parameters, along with 
the size of, and distance to, the planet and satellites, to make the scene 
manageable and still keep the apparent dimensions. For a few satellites I 
had to scale them a bit up after that, to make them visible from Triton. 
Images must be somewhere in p.b.i. for that year.

Thomas

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On 6/24/2010 3:59 AM, Thomas de Groot wrote:
> I have never done that really seriously. I remember having done only one
> scene with planets in 2006 (an unfinished project, as most are) with a view
> of Neptune from Triton. This time as an illustration of a scene from Samuel
> Delany's Nova.
>
> The only thing I did was to scale down the orbital parameters, along with
> the size of, and distance to, the planet and satellites, to make the scene
> manageable and still keep the apparent dimensions. For a few satellites I
> had to scale them a bit up after that, to make them visible from Triton.
> Images must be somewhere in p.b.i. for that year.
>
> Thomas
>
>


This guy seems to have done all that:


http://www.mmedia.is/~bjj/

Too bad he didn't release his code. I might email him. The Object 
Collection could definitely use it!


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Le 2010-06-22 19:16, SharkD a écrit :
> On 6/20/2010 12:19 AM, Reactor wrote:
>> Do you mean a Jovian stationary orbit?
>
> Yes. And I'd like the sun and planet positions/sizes/orientations to be
> proportionately correct with respect to each other. (They don't need to
> be at the same scale as the station though. I'm willing to fudge that
> bit to keep POV-Ray from choking on the huge scale differences.)
>

 From the location of Jupiter, all other planets are only seen as the 
stars. The inner planets, Mercury, Venus, Earth and Mars, as very faint, 
maybe not visible stars. Mercury will definitely NOT be visible at all.
Saturn is the brightest "star" in the sky.
The Sun is about 8 times smaler than seen from the Earth and 64 times 
fainter. Jupiter been about 8 times farther from the Sun than the Earth.
Uranus and Neptune are visible as just somewhat faint stars.

ONLY Jupiter is seen as more than a point of light, and from your low 
orbit, will cover a prety large area of the sky. It's luminosity should 
tend to drown out almost everything else. Most stars and planets won't 
be visible at all!

So, you can effectively skip over all other planets and all stars exept, 
maybe, the 100 brightest ones, keeping only: The Sun, Jupiter and it's 
bibest moons.


Alain

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High!

Late... but perhaps not too late!

On 06/24/2010 04:50 AM, SharkD wrote:

> How about code for the orbital characteristics? It's been a while since
> I tried (and never entirely succeeded) doing the calculations myself.

What about this: "Computing Planetary Positions", 
http://www.stjarnhimlen.se/comp/ppcomp.html

See you in Khyberspace!

Yadgar

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