Atmospheric pressure

JosiahD · May 23, 2015

Just curious to see what the highest atmospheric pressure might be that's been observed by fellow CMDRs. I recently came across one planet at just over 2.1 million atmospheres, and last night a planet at just over 1.6 million atmospheres.
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And I wonder how Frontier will handle this when it comes to planetary landings.......

TheLoneTrucker · May 23, 2015

JosiahD said:
Just curious to see what the highest atmospheric pressure might be that's been observed by fellow CMDRs. I recently came across one planet at just over 2.1 million atmospheres, and last night a planet at just over 1.6 million atmospheres.
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And I wonder how Frontier will handle this when it comes to planetary landings.......

I'm going to go ahead and imagine that as some sort of error. If they are using Earth as a reference. And you packed 2.1 million times earth atmosphere on top of itself on a rocky body you'd end up with a decent sized gas giant. Than again I could be wrong.

JosiahD · May 23, 2015

TheLoneTrucker said:
I'm going to go ahead and imagine that as some sort of error. If they are using Earth as a reference. And you packed 2.1 million times earth atmosphere on top of itself on a rocky body you'd end up with a decent sized gas giant. Than again I could be wrong.

After finding the first one at 2.1 million I had considered it might be a bug, but then I found the one at 1.6 million last night, so it could be an issue with the generation of the planetary data I suppose. But I'm no expert on such things so I'm not sure whether it's even feasible for such pressures (they were standard high metal planets iirc), an intended outcome of the generation of the data or an error.

KillingTime · May 23, 2015

Ziggy Starduster said:
I thought about this too, and I'm guessing the flight computer will say: no.

I would hope when you try and land this blares from the radio...

[video=youtube;a01QQZyl-_I]https://www.youtube.com/watch?v=a01QQZyl-_I[/video]

Morbad · May 23, 2015

JosiahD said:
Just curious to see what the highest atmospheric pressure might be that's been observed by fellow CMDRs. I recently came across one planet at just over 2.1 million atmospheres, and last night a planet at just over 1.6 million atmospheres.

Were they gas giants?

JosiahD said:
And I wonder how Frontier will handle this when it comes to planetary landings.......

You will get a few hundred km into the atmosphere and implode like a submarine whose captain regards rated crush depth as only a guideline.

JosiahD · May 23, 2015

Morbad said:
Were they gas giants?

You will get a few hundred km into the atmosphere and implode like a submarine whose captain regards rated crush depth as only a guideline.

You might have missed my last post - high metal planets iirc.
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Yeh I'm kind of expecting the imploding thing too........

Varrag · May 24, 2015

Yeah, there are some really crazy numbers out there. Those atmospheric pressures are about the same or higher than the one at the bottom of the Earth's mantle (on depth of almost 3000 km).

Patau82 · May 24, 2015

the current record holder is:
S171 37 8 WITH A PRESSURE OF 38,894,530,560.00 ATMOSPHERE

https://forums.frontier.co.uk/showthread.php?t=50952&p=1513808&highlight=S171+37+8#post1513808

Ziegfried · May 24, 2015

Patau82 said:
the current record holder is:
S171 37 8 WITH A PRESSURE OF 38,894,530,560.00 ATMOSPHERE

My god man!! The Diamonds! SO many DIAMONDS for us AAAALLLLLLLLLLLLLLLLLLLL! You know...assuming carbon and stuff.

SnowGhost · May 24, 2015

JosiahD said:
Just curious to see what the highest atmospheric pressure might be that's been observed by fellow CMDRs. I recently came across one planet at just over 2.1 million atmospheres, and last night a planet at just over 1.6 million atmospheres.
.
And I wonder how Frontier will handle this when it comes to planetary landings.......

Ziggy Starduster said:
I thought about this too, and I'm guessing the flight computer will say: no.

I'd rather it was left as yet another creative way to die.

SirAdelaide · May 24, 2015

They're usually very hot planets, with silicate atmosphere. Meaning that the atmosphere is actually made of vapourised rock.

Morbad · May 24, 2015

SirAdelaide said:
They're usually very hot planets, with silicate atmosphere. Meaning that the atmosphere is actually made of vapourised rock.

What's the boiling point of silicon at a million atmospheres of pressure?

I suspect it's higher than the temperature of any part of most of these planets.

Zenith · May 24, 2015

Morbad said:
What's the boiling point of silicon at a million atmospheres of pressure?

I suspect it's higher than the temperature of any part of most of these planets.

3500K or so according to a brief search. That's probably assuming standard pressure as well. For a million atmospheres, that's probably somewhat higher as higher pressure usually drives a gaseous phase into a liquid.

Morbad · May 24, 2015

Zenith said:
3500K or so according to a brief search. That's probably assuming standard pressure as well. For a million atmospheres, that's probably somewhat higher as higher pressure usually drives a gaseous phase into a liquid.

It's probably a lot higher. Hydrogen has a boiling point of -253C at one atmosphere, but the hydrogen near the core of Jupiter is a liquid, possibly a solid, at ~35000C.