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***My Alien Planets Thread -- UPDATE!!! ***

alien planets pictures scifi

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#21
Jakob

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The next two updates will be especially exciting because they contain garden worlds!

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This is one of the most Earth-like planets in my collection. It is a warm, wet world named Elonia (not to be confused with Wolf 1061 c) with an average temperature of 23 Celsius. Shallow seas, jungles, and reefs cover much of the surface and plenty of strange creatures lurk in the dense greenery. The planet measures 1.30 Earth radii and 2.65 Earth masses and is considered a superhabitable planet. It has a moon about the size of Earth's moon, but orbiting slightly further out.

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Spinning world:

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#22
Jakob

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This is my biggest success with creating a multi-biome garden world. It is called Urth and measures 1.01 Earth radii and 1.13 Earth masses, with an average temperature of 17 Celsius. It is a rich and diverse world, with seas, deserts, grasslands, rainforests, and ice-covered mountain ranges in the northern hemisphere. Even the atmospheric composition is quite similar to Earth, making it one of the closest Earth analogues in known space.

 

Full hemisphere:

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Partial view:

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Another partial view:

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Gif:

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#23
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All of the planets in my collection to scale, with Jupiter, Neptune, Earth, and the Moon for reference!

g71VTbD.jpg



#24
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A terrestrial world with extensive oceans but no life outside of the seas, as the star system is somewhat younger than Earth. It is a Super-Earth measuring 1.45 Earth radii and 3.52 Earth masses, with an average temperature of 5 Celsius. This world's name is Ginter.

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Spinning view:

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#25
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Also in this system is a warm Neptune called Weatherly, which measures 3.85 Earth radii and 13.9 Earth masses. It is a Sudarsky Class II world with a large polar storm and 25 moons.

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Spinning:

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#26
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A small cryogenic planet called Snowball. 0.84 Earth radii, 0.48 Earth masses, average temperature -118 Celsius. Much of the planet is covered with thick clouds and water/CO2 ice stained with dark volatiles, but in some places, bare rock shows through.

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Snowball spinning:

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#27
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A rather generic Sudarsky Class III world, a stereotypical featureless blue orb. It measures 9.5 Earth radii and 400 Earth masses, with a temperature of 220 Celsius. Six moons orbit it, including two the size of Jupiter's Galilean moons. This world is known as Blue Jupiter.

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#28
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A large, rather barren terrestrial world measuring 1.50 Earth radii and 4.60 Earth masses. At 8 Celsius, this world has the potential to be a garden world someday, but is currently too young to have developed life of its own, at less than a billion years of age. The atmosphere is predominantly carbon dioxide and methane. This world is named Hunlock.

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Spinning

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#29
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This is Harvey, a terrestrial planet of the Super-Mars variety--a cold planet with a thin atmosphere of carbon dioxide. 1.36 Earth radii, 2.78 Earth masses, average temperature -55 Celsius.

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Spinning

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#30
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A garden world named New J√§rvi. Much of its terrain resembles the Finnish Lakeland, but on a planetary scale. Dozens of seas and thousands of large lakes are spread across the surface of the planet, which is otherwise predominantly forests of various biomes. It is 1.26 Earth radii, 1.89 Earth masses, and has an average temperature of 12 Celsius.

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Spinning:

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#31
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A warm terrestrial world named Wadham. Measures 1.47 Earth radii and 3.13 Earth masses. Average temperature is 42 Celsius. The orange areas are colonies on the planet.

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Spinning:

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#32
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This is Rajaniemi. Formerly a barren world covered in ice, it was over the course of centuries terraformed into a habitable, but still icy, world. It measures 0.83 Earth radii and 0.43 Earth masses, with a temperature of -29 Celsius that was raised to 6 Celsius during the terraforming. The world before terraforming:

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The world post-terraforming:

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Another view post-terraforming, showing the distinctive yellowish vegetation planted here:

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Rajaniemi spinning:

oo69q6o.gif


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#33
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This world is Jefwho, a dense iron planet that has been stripped of its atmosphere due to being very close to its star. It is known for its very low albedo and many large impact craters. The planet measures 1.45 Earth radii and 5.63 Earth masses, with a surface temperature of 440 Celsius.

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Spinning--more a simulation than anything, as this world is tidally locked:

U5mYqqH.gif


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#34
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A boring Super-Earth named Isaac measuring 1.25 Earth radii, 2.12 Earth masses, and 109 Celsius.

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Spinning:

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#35
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Yet another random lifeless Super-Earth named Meh. This one is tidally locked too. 1.57 Earth radii, 4.02 Earth masses.

x4uXjGT.jpg


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#36
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And finally the gas giant Maga, a hot Jupiter so hot it glows slightly even on the night side. 11.8 Earth radii, 236 Earth masses, 1350 Celsius.

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Spinning:

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#37
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Mega-Earth warm water world Tallulah. It boasts a thick, soupy atmosphere of hydrogen, helium, carbon dioxide, and oxygen, at 17 Earth atmospheres. Below this is planet-encompassing ocean that is hundreds of kilometers deep. The average surface temperature on this planet is 135 Celsius, which would ordinarily be too hot for liquid water, but due to the atmospheric pressure, water does not boil until 202 Celsius. Mats of algae float on large areas of the surface, supporting an ecosystem of strange creatures in the superheated water. The planet measures 2.42 Earth radii and 7.89 Earth masses.

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Spinning:

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#38
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Dust, an Earth-sized world that is here covered in large dust storms. 1.22 Earth radii, 1.67 Earth masses.

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Spinning:

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#39
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The latest batch of planets.

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#40
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Yet another garden world of myriad archipelagos, rather confusingly named Terra. 1.08 Earth radii and 1.40 Earth masses.

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Spinning:

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