Stalker's work

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Re: Stalker's work

Post by Stalker on 15th July 2010, 5:31 am

Gliese 581 c as a steam planet

or

Gliese 581 d as a ocean planet


I enjoy to reuse what I have already made: resumption of a old picture to illustrate 55cnc Ae


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Re: Stalker's work

Post by Edasich on 15th July 2010, 8:21 am

The GJ 581 planets look nice Very Happy

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Re: Stalker's work

Post by pdp8e on 22nd July 2010, 5:18 pm

Wow - very nice work!

(How about earth 200Million years ago (is it Pangaea or Gondwana?))

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Re: Stalker's work

Post by Stalker on 18th January 2012, 11:30 am

Just look at the video^^

http://science.nasa.gov/science-news/science-at-nasa/2012/13jan_rethink/

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Re: Stalker's work

Post by Sunchaser on 24th February 2012, 5:42 pm

I like your work! I'll ask the same question I asked Edasich...how do you get those textures?

-M-

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Re: Stalker's work

Post by Stalker on 25th February 2012, 3:09 pm

I pick some textures from Celestia Motherlode and mix them together

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Re: Stalker's work

Post by Sunchaser on 6th April 2012, 8:19 pm

I really like the steam/water planets. Any chance such a texture would be available? (Please?)

-M-

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Re: Stalker's work

Post by Sirius_Alpha on 6th April 2012, 10:05 pm

Wouldn't they just be white?

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Re: Stalker's work

Post by Neuron on 7th April 2012, 6:12 am

Nope. Color is determined by much more than just basic composition. Ammonia is white but Jupiter is full of colour from other compounds.

Plus, a steam planet would be blue even without any additional compounds. Steam at high temperatures is a hot gas, not the fluffy condensing vapour that comes from our kettles. For it to be white it would have to condense, and at such hot temperatures it is not going to condense.

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Re: Stalker's work

Post by Sirius_Alpha on 7th April 2012, 1:36 pm

Ah that makes sense, thanks.

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Re: Stalker's work

Post by Stalker on 2nd September 2012, 2:43 pm

Hot neptune

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Re: Stalker's work

Post by tommi59 on 2nd September 2012, 4:24 pm

The last one kepler 47

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Re: Stalker's work

Post by Sunchaser on 5th September 2012, 8:08 am

That looks really nice. What would the temperature range be for Hot Neptunes? The same as hot Jovians?

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Re: Stalker's work

Post by Stalker on 5th September 2012, 10:30 am

For me this is the equivalent of the class III of Sudarsky's classification.

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Re: Stalker's work

Post by Stalker on 26th February 2013, 4:45 pm

All Sudarsky's classification with class Z and intermediate classes.

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Re: Stalker's work

Post by Sunchaser on 27th February 2013, 8:18 am

What are the temp ranges and compositons depicted?

-M-

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Re: Stalker's work

Post by Stalker on 27th February 2013, 9:50 am

I'm creating a new John Whatmough's like website and I need representations of gas giants in all sudarsky's classes. I created a new class, Z for Zero, cooler than class I with clear atmosphere dominated by methane clouds. This is for the last, blue planet.

There is a problem, some planets dont fit in the sudarsky classification, but between two classes or in two classes at the same time. For this ones i created intermediate classes, just for the visual effet.

In order in the image:

Class V: Silica clouds
Intermediate class IV-V
Class IV: Sodium haze
Intermediate class III-IV
Class III: Rayleigh scattering
Intermediate class II-III
Class II: ice and water clouds
Intermediate class I-II
Class I: Ammonia cloud (Jupiter/Saturn analog)
Intermediate classe Z-I
Additionnal class Z: methane cloud

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Re: Stalker's work

Post by Sunchaser on 27th February 2013, 11:22 pm

I don't ask this to sound like I'm being contentious; are these scientifically plausible renderings. (I like how they look, so I hope the answer is yes.)

-M-

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Re: Stalker's work

Post by Sirius_Alpha on 28th February 2013, 12:48 am

It's based off the work of Sudarsky et al who calculated the spectra and appearances of planets based on what chemicals can condense at various temperatures in a Jovian atmosphere.
http://arxiv.org/abs/astro-ph/9910504

It's definitely plausible, but it's outdated. The exoplanet zoo is looking more complicated than the Sudarsky scheme.

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Re: Stalker's work

Post by Stalker on 4th April 2013, 6:38 am

Sunchaser wrote:I don't ask this to sound like I'm being contentious; are these scientifically plausible renderings. (I like how they look, so I hope the answer is yes.)

-M-
Sorry for not understanding your question. Sirius_alpha made a good answer. For me the Sudarsky classification is more a "visual range of temperatures" than a real rendering of extrasolar planets. And I think it work a little only on gaz giants.

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Re: Stalker's work

Post by Stalker on 14th May 2013, 5:37 am

A directly imaged planet with M spectral type.


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Re: Stalker's work

Post by Sunchaser on 14th May 2013, 5:43 pm

That looks spectacular!!!!

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Re: Stalker's work

Post by Stalker on 15th May 2013, 9:11 am

Thanks you, I was working on something like for a very long time, it's'the first time it really speak of both planetary and stallar properties of that kind of object.

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Re: Stalker's work

Post by Stalker on 2nd January 2014, 11:28 am

Hello.

I made new star for my web site, here is a sample. Please tell me what do you think about it. My wish was bright an luminous stars.

The main sequence from M to B:



T Tauri:


An AM Herculis binary:

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Re: Stalker's work

Post by Baltazar on 26th January 2014, 5:29 pm

I find the render awesome. I do have some questions/comments - Type A & B stars seem very much identical. To my knowledge, B-class should be a lot bigger and more bluer on the "aura" edges. Of course, I could be wrong.

The red dwarf - do red dwarfs really shine that way? I always imagined them a bit redder (maybe the media and artist representations make them too red?)

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Re: Stalker's work

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