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 Post subject: kepler 432 B
PostPosted: Sat, 28-02-15, 2:22 GMT 
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just some more fun

-- Kepler-432.stc
Code:

"Kepler-432"
{
        #### http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=Kepler-432 ####
        #### https://www.swift.psu.edu/secure/toop/convert.htm #####
   RA 293.2833  #  19:33:08
   Dec 48.2858  # +48:17:09
   Distance  2850
   SpectralType "K2III"
   AppMag   13
}

the " Kepler-432.ssc
Code:

"b" "Kepler-432"

{
   Texture "Kepler-432B.png"
   Radius     103663
   
   EllipticalOrbit
   {
      Period             0.1437442
      SemiMajorAxis      0.301
      Eccentricity       0.5121
      ArgOfPericenter   65.6
                Inclination       88.17
   }

    UniformRotation
    {
       Period        0.66
       Inclination   80.0
       MeridianAngle 0
    }
   
}


Image Image

a class IV / V alkali - silicate giant

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 Post subject: Re: kepler 432 B
PostPosted: Sat, 28-02-15, 11:57 GMT 
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That's good, John. Should be interesting a thread with all the exoplanet class->textures. The dominant colors (like the greens-blues of this) is a missing features in these exoplanetary matters; it would help a lot to set up the textures for the default Celestia's exoplanets catalog.

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 Post subject: Re: kepler 432 B
PostPosted: Sat, 28-02-15, 16:19 GMT 
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Indeed, let me recall this paragraph of mine from a thread by Andrew in the Exoplanets workshop:

t00fri wrote:

i) As to EXO textures, a possibly useful and scientific approach could be to use a set of standardized textures in analogy to our Hubble type textures for galaxies. The underlying idea being to use such a limited texture set mainly for visualizing characteristic sets of catalog data, rather than trying to be individually photo-realistic somehow...


How many standard textures would be a sensible basis?

Fridger

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 Post subject: Re: kepler 432 B
PostPosted: Sat, 28-02-15, 18:47 GMT 
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Quote:
How many standard textures would be a sensible basis?


with the color ( mostly) and the banding information so UNKNOWN

I can not even guess .

What i have been doing is when something pops up in the NEWS , then doing something .

also i have been having FUN with a new toy "gaseous-giganticus.c"

The 2k
Image
is a guess based on the
https://en.wikipedia.org/wiki/Sudarsky% ... sification

being as close to the parent and as dense as it is .it is a HOT body
i added a dark "nightmap" for some of the darker ( and lower) bands that might give off a bit of IR light
zip with everything ( 4k maps )
12.9 meg
https://drive.google.com/file/d/0B6ZYAd ... sp=sharing

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 Post subject: Re: kepler 432 B
PostPosted: Sun, 01-03-15, 10:20 GMT 
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John Van Vliet wrote:
Quote:
How many standard textures would be a sensible basis?


with the color ( mostly) and the banding information so UNKNOWN

I can not even guess .


All unknown visual features should be merged into ONE averaged reference texture as a start. The task would be to diversify as further measurements are coming in.

It would be great to have a compilation of EXO surface features that have a chance of being filled in by real measurements in the near future.

Example: Color:
Take an EXO planet the color of which was unknown but lately became known by some clever measurements/analysis: see e.g. the Jupiter-like world, HD 189733b

http://news.nationalgeographic.com/news ... telescope/

In celestia.Sci I could add easily a flag in the EXO data file or even a slider accounting for the continuous adjustment of color saturation of a texture rendering. S=0 <=> grayscale while S=1 <=> vivid color. This allows to switch a given color texture to grayscale and back! In other cases the color of the parent star can be similarly implemented for the diffuse lighting of it's (close) EXO planets...

Quite some time ago already, I have furnished celestia.Sci with the same mechanism for all stars, globular clusters and galaxies. Depending on taste and/or scientific considerations one may select various color schemes simply by clicking a Qt tool button or adjust a slider...

Fridger

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 Post subject: Re: kepler 432 B
PostPosted: Mon, 02-03-15, 7:11 GMT 
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Quote:
All unknown visual features should be merged into ONE averaged reference texture as a start.


a few base images then

some low mass and cool gas planets will have very little banding ( in the visible spectrum )

others that spin fast and/or are high mass will have many ( maybe )

just look at the differences in ours

the code i am using is WAY too slow for any sliders
but a small 512x256 image could be a lot faster
( the 4k above took 10 min. to render on 4 cpu's )

with a small input image for band color ( could be as small as 1x256 )
and some tweaking to the program it can be sped up

but the output is in a cubemap

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 Post subject: Re: kepler 432 B
PostPosted: Tue, 03-03-15, 5:20 GMT 
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Maybe reference colors could be borrowed from here...

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