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Astronomers say a Neptune-sized planet lurks beyond Pluto
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| anonymousgamer | Date: Wednesday, 20.01.2016, 18:39 | Message # 1 |
 World Builder
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| Link to article
I dunno what you guys think, but this seems pretty legit to me.
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| DoctorOfSpace | Date: Wednesday, 20.01.2016, 18:53 | Message # 2 |
 Galaxy Architect
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| It is Nibiru.
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| Alek | Date: Wednesday, 20.01.2016, 18:57 | Message # 3 |
 Pioneer
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| Uh...The theory about it coming from the formation of the solar system then being knocked out...I came up with that exact thing before I ever even read a full article mentioning how they thought it was formed...How it's possible I thought of it then being seen in an article I don't know but apparently it happened...
Living among the stars, I find my way. I grow in strength through knowledge of the space I occupy, until I become the ruler of my own interstellar empire of sorts. Though The world was made for the day, I was made for the night, and thus, the universe itself is within my destiny.
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| Salvo | Date: Wednesday, 20.01.2016, 19:20 | Message # 4 |
 Star Engineer
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| If it really exists... well, it's a pretty scary but also interesting thing. I mean... for all this time there was a Neptune-size planet that we've never seen, awesome! But what else could be out there? Is there another planet we didn't seen? Something dangerous someway? This opens a lot of possibilities. 
The universe is not required to be in perfect harmony with human ambition.
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| HarbingerDawn | Date: Thursday, 21.01.2016, 00:50 | Message # 5 |
 Cosmic Curator
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| If anyone wants to add the planet to SE, here you go:
Code Planet "Planet Nine"
{
ParentBody "Sol"
Mass 10
Orbit
{
RefPlane "Ecliptic"
PericenterDist 250
Eccentricity 0.6
Inclination -30
AscendingNode 280
ArgOfPericenter -30
MeanAnomaly 228.5
}
}
All forum users, please read this!
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| parameciumkid | Date: Thursday, 21.01.2016, 03:24 | Message # 6 |
 Explorer
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| Wait a minute!
Perhaps not now, but until a few years back, there certainly was a Neptune-sized planet beyond Pluto - Neptune was beyond Pluto!
Okay I've had my fun and will shut up and go sulk in the corner now.
Intel HD Graphics 4000 ;P
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| Watsisname | Date: Thursday, 21.01.2016, 06:41 | Message # 7 |
 Galaxy Architect
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| Lol, I was thinking the same when I first heard this. 
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| JoeCapricorn | Date: Thursday, 21.01.2016, 22:25 | Message # 8 |
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Observer
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| How cold could such a planet get?
I've always wondered if a planet could ever get cold enough (also assuming it has a hydrogen dominated atmosphere but a defined surface of a terrestrial planet) that it has seas of liquid hydrogen. Or at least if it were a gas giant, in the coldest reaches of its atmosphere hydrogen rain occurs.
I know there are theories of hydrogen and helium rain deep inside Neptune, but in a more exotic high pressure and high temperature state.
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| Watsisname | Date: Friday, 22.01.2016, 05:40 | Message # 9 |
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Galaxy Architect
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United States
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| Quote parameciumkid (  ) In a near-perfect vacuum, the boiling temperature of Hydrogen is lower than the ambient temperature of space.
Lol what? Hydrogen does not even have a boiling point at near vacuum pressure. The liquid phase does not exist below ~0.1atm, nor does it exist below ~14K. Besides, Joe is asking specifically in the context of planetary surfaces with atmospheres, not near vacuum conditions.
I don't think there's any particular reason you could not have a "terrestrial" planet with liquid hydrogen seas. From simple equilibrium temperature considerations, it would have to be in the realm of about 100 to 200 AU from a sun-like star to have the right surface temperature.
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| Himself | Date: Monday, 25.01.2016, 23:41 | Message # 10 |
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Astronaut
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| Additionally, a Neptune-sized planet would probably get most of its heat from its interior.
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| Jonahrf | Date: Thursday, 28.01.2016, 22:11 | Message # 11 |
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Space Tourist
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| Possible new planet in our solar systemCode Planet "Nine"
{
ParentBody "Sol"
Class "GasGiant"
Mass 10
Atmosphere
{
Height 1000
Model "Neptune"
Bright 10
}
Surface
{
colorSea (0.20, 0.26, 0.33, 1.00)
colorShelf (0.25, 0.33, 0.45, 1.00)
colorBeach (0.22, 0.38, 0.56, 1.00)
colorDesert (0.26, 0.43, 0.53, 1.00)
colorLowland (0.24, 0.43, 0.63, 1.00)
colorUpland (0.24, 0.51, 0.78, 1.00)
colorRock (0.34, 0.58, 0.75, 1.00)
colorSnow (1.00, 1.00, 1.00, 1.00)
Exposure 5
}
Orbit
{
RefPlane "Ecliptic"
PericenterDist 250
Eccentricity 0.6
Inclination -30
AscendingNode 280
ArgOfPericenter -30
MeanAnomaly 228.5
}
}
Edited by Jonahrf - Thursday, 28.01.2016, 22:13 |
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| Bells_Theorem | Date: Sunday, 31.01.2016, 04:26 | Message # 12 |
 Explorer
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| It's actually believed to be an Ice Giant, not likely a Gas Giant.
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| ZackG | Date: Sunday, 31.01.2016, 07:16 | Message # 13 |
 Space Pilot
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| Sorry but as a guy born in the 80s, I will always designate Pluto as the 9th planet.
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| connorneal2005 | Date: Wednesday, 03.02.2016, 16:52 | Message # 14 |
 Astronaut
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| Planet 9 add-on for SE 0.974 here
Insert: SpaceEngine > catalogs > planets
How big is the universe?
Edited by connorneal2005 - Wednesday, 03.02.2016, 16:54 |
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| steeljaw354 | Date: Thursday, 04.02.2016, 23:36 | Message # 15 |
 World Builder
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| I think "nox" would be good name.
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