Ultimate space simulation software

 
JKerman
Space Tourist
Space Tourist
Posts: 38
Joined: 18 Oct 2017

Planets with potentially breathable atmospheres

26 Aug 2018 15:24

TheRedstoneHive wrote:
Found a better one, which is now officially my Earth 2.0 (Unless I find a better planet in the future).
RS 8474-1359-8-11920345-195 4:
Cold (-98 oC) desert with unicellular life;
Parent star: M1.4V Dwarf;
Rotation period Tidally Locked;
ESI (Earth simularity inxex): 0.658
Atmospheric pressure: 0.517 atm
Atmospheric comp:
O2: 93.2% (0.481 atm)
CO2: 6.76% (0.0349 atm)
CH4: 594 ppm (0.000307 atm)
C2H4: 59.4 ppm (3.07x10-5 atm)
H2S: 29.7 ppm (1.54x10-5 atm)
H2: 20.1 ppm (1.04x10-5 atm)

The air is little thin, and it might not be that comfortable to breathe, but it is still a nice place to explore, and if I had the choice, I would go on holiday to stay here for a year or two, if we could travel the thousands of light years in a short time :)

Here are a couple of screenshots of the planet:
RS 8474-1359-8-11920345-195 4.png
What do you think I should call it?

Nice! The best thing is that there’s no SO2, which is the biggest problem we have. Though, the temperature is a bit low. You’d have to be directly under the sun for tolerable temperatures, but since the planet’s tidally locked, you’d probably have to deal with winds upwards of 500 miles an hour. The best spot would definitely be the eye of the storm. The winds would be very low there, and the temperature would be higher.
 
User avatar
Stellarator
Explorer
Explorer
Posts: 260
Joined: 10 Jul 2018
Location: Andromeda A* blackhole

Planets with potentially breathable atmospheres

26 Aug 2018 16:00

JKerman wrote:
Well, the problem with the sulfur dioxide is that even a tiny amount in the atmosphere can be harmful over an extended period of time, and the toxicity is measured by concentration, not partial pressure. 100ppm is lethal in minutes, 50ppm is lethal in a few days, and anything above 5ppm can eventually cause permanent damage if inhaled continuously. Even down to 1ppm, it would smell pretty badly.

The SE 0.9.8.0 terra's are famous for being basically unbreathable because of the overabundant sulphur dioxide, even if we ignore all other atmospheric gasses.
Futurum Fusionem
 
User avatar
Gnargenox
World Builder
World Builder
Posts: 603
Joined: 11 Dec 2016
Location: 179° 56′ 39.4″ +0° 2′ 46.2″ @ 7,940 ± 420 pc

Planets with potentially breathable atmospheres

26 Aug 2018 16:06

Realistically, at atmospheric pressure, pure SO2 will begin to condense at –10.1°C (13.9°F). If the gas is compressed to 388 kPa(g) (56.3 psig), SO2 will begin to condense at 32.2°C (90°F). Most planets we stumble across are cold enough it would all be trapped in the Polar caps.
CPU: AMD FX-8350 8 core processor 4GHz / GPU: GeForce GT 730 @ 1920x1080, 60Hz with 1GB adapter RAM / RAM: Patriot Signature 4GB 1600MHz 240-Pin DDR3 (only 2GB work, don't buy it) / Motherboard: MSI 970 Gaming MS-7693
 
User avatar
Watsisname
Science Officer
Science Officer
Posts: 1332
Joined: 06 Sep 2016
Location: Bellingham, WA

Planets with potentially breathable atmospheres

27 Aug 2018 05:34

Thanks, Gnargenox, that's good info to have as reference.  In addition there are non-thermal (photo-chemical) ways of removing SO2 from atmospheres, so yeah I think in general the concentrations we find on planets should realistically be much lower. :)
 
User avatar
TheRedstoneHive
Explorer
Explorer
Posts: 153
Joined: 02 Mar 2017
Location: Gliese 667Cc
Contact:

Planets with potentially breathable atmospheres

08 Sep 2018 00:00

JKerman wrote:
TheRedstoneHive wrote:
Found a better one, which is now officially my Earth 2.0 (Unless I find a better planet in the future).
RS 8474-1359-8-11920345-195 4:
Cold (-98 oC) desert with unicellular life;
Parent star: M1.4V Dwarf;
Rotation period Tidally Locked;
ESI (Earth simularity inxex): 0.658
Atmospheric pressure: 0.517 atm
Atmospheric comp:
O2: 93.2% (0.481 atm)
CO2: 6.76% (0.0349 atm)
CH4: 594 ppm (0.000307 atm)
C2H4: 59.4 ppm (3.07x10-5 atm)
H2S: 29.7 ppm (1.54x10-5 atm)
H2: 20.1 ppm (1.04x10-5 atm)

The air is little thin, and it might not be that comfortable to breathe, but it is still a nice place to explore, and if I had the choice, I would go on holiday to stay here for a year or two, if we could travel the thousands of light years in a short time :)

Here are a couple of screenshots of the planet:
RS 8474-1359-8-11920345-195 4.png
What do you think I should call it?

Nice! The best thing is that there’s no SO2, which is the biggest problem we have. Though, the temperature is a bit low. You’d have to be directly under the sun for tolerable temperatures, but since the planet’s tidally locked, you’d probably have to deal with winds upwards of 500 miles an hour. The best spot would definitely be the eye of the storm. The winds would be very low there, and the temperature would be higher.

It turns out that in the eye of the storm the elevation is very high, the pressure is below 0.07 atm :(

Who is online

Users browsing this forum: Bing [Bot], Macronicus and 1 guest