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Author Topic: TBH's work for TransNeptune  (Read 1745 times)

TheBlackHole

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TBH's work for TransNeptune
« on: November 18, 2011, 01:05:34 pm »

Made a "hot Neptune" texture. The idea is that if the sun is a red giant, Neptune will be much hotter than it is now, drastically altering its appearance. The texture I've attached is 1024x512, the full-size texture is 4kx2k. I've also attached a render using the small version (because this computer freezes up if I try to use the larger one).
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TheBlackHole

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Re: TBH's work for TransNeptune
« Reply #1 on: November 19, 2011, 12:54:45 am »

I think this one looks better. Attached the full-size texture this time.
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CoriDavis

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Re: TBH's work for TransNeptune
« Reply #2 on: November 20, 2011, 01:09:27 am »

so is "hot neptune" still a gas giant?  I wonder if anyone has ever figured out what's under all that gas
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ENSONIQ5

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Re: TBH's work for TransNeptune
« Reply #3 on: November 20, 2011, 03:28:42 am »

Nice work TBH.  I am not certain about the 'Earthlike' appearance, however.  According to Wikipedia:

"Neptune is similar in composition to Uranus, and both have compositions which differ from those of the larger gas giants, Jupiter and Saturn. Neptune's atmosphere, while similar to Jupiter's and Saturn's in that it is composed primarily of hydrogen and helium, along with traces of hydrocarbons and possibly nitrogen, contains a higher proportion of "ices" such as water, ammonia and methane. Astronomers sometimes categorize Uranus and Neptune as "ice giants" in order to emphasize these distinctions.[13] The interior of Neptune, like that of Uranus, is primarily composed of ices and rock.[14] Traces of methane in the outermost regions in part account for the planet's blue appearance"

..which leads me to think that a warm Neptune would probably have an appearance like Jupiter or Saturn, as the icy compounds would melt to a gaseous state and the trace methane would most likely have blown away in the Solar wind.  Also, with a Neptunian day being only a bit over 16 hours, there would probably be no distinct 'impact site' indicating the side facing the Sun when the nova hit, most likely the 'damage' would be spread around the equator reasonably evenly (Neptune's axial tilt is roughly the same as Earth's).

In my minds eye, I see the post-cataclysm Neptune being a sick yellow/orange colour, perhaps with a blueish tinge at the poles, with massive and violent storms through the equatorial regions as previously-frozen gasses well up from the boiling interior.  There might also be a gaseous 'tail' streaming away into Neptune's dark side, much like a comet's, as the outer layers are stripped away by the solar radiation.

Having said all that, who knows what would happen to the outer planets if the Sun went Nova, it's all speculation really.  Importantly for the Transneptune plotline however, the Solar System becomes uninhabitable post-cataclysm, and I am just concerned that this Neptune looks too pretty!  You've done a great job on preparing the surface texture, really nice work.
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davdud101

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Re: TBH's work for TransNeptune
« Reply #4 on: November 20, 2011, 06:06:17 pm »

Even as Ens5 said, the look might not be exact, the texture is still realy good. Nice work, BackHole!
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TheBlackHole

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Re: TBH's work for TransNeptune
« Reply #5 on: November 21, 2011, 12:06:54 am »

In my minds eye, I see the post-cataclysm Neptune being a sick yellow/orange colour, perhaps with a blueish tinge at the poles, with massive and violent storms through the equatorial regions as previously-frozen gasses well up from the boiling interior.  There might also be a gaseous 'tail' streaming away into Neptune's dark side, much like a comet's, as the outer layers are stripped away by the solar radiation.
If Neptune was more orange/yellow, I'd have a hard time recognizing it and I'm sure most people would too. Massive, violent storms would be doable, as would some color adjustments. Maybe instead of making it orange with blue poles, I could keep it blue but with yellow/orange wisps floating through the atmosphere like smoke. I doubt, though, that a planet the size of Neptune would have a tail behind it, considering its distance from the sun. I could see Earth or Jupiter having a cometlike tail but no Neptune. I'm about to start work on a "hot Triton" texture based on the one from here: http://laps.noaa.gov/albers/sos/sos.html
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