The “perfect” earth-like world to live on

Traesha

Traesha
With the recent discovery of more "habitable" worlds in this time the Trappist-1 system.

I am kind of wondering, what kind of earth like… when we can land on them would you plan to visit or even settle on, should you choose to do so.
Off course, we have the List of Earth-like worlds, v2 thread which is often updated.
A good list and, we explorers will find earth-like worlds on a regular basis.

But I am looking for preferences. Like:

Average surface temperature
Presence of a moon
Distance to a star
What type of star
Amount of land (in percentage)
Gravity
% of oxygen
Orbital / rotational period (min / max)

Anything else that may be important?

All things that can be looked up in game as data and visually (amount of land)

It may be exciting to go to an earth-like, land on it and spend the rest of your time just settling there, and waiting till another explorer comes to visit your world or maybe until you die of old age lol.
What would that old age be?!
I am looking for opinions on what would be ideal if you plan to go to an earth-like and spend the rest of your life there.
 

Bjorna

B
Interesting question. I started thinking about it and then I realised that it's hard imagining what it would be like living on something different than earth. Perhaps fun with slightly lower gravity? Two suns of different classes for interesting mood-changes during the day, like a blue and an orange one? A ring would be nice to have for some spectacular views I guess.

Anyone else thinks that Frontiers earth-likes look slighly of? The coast-lines are to fractal I think, they should do some work on that... very few coasts on earth have that very fractal, archipelago-ish appearance.
 

Edelgard von Rhein

E
Bjorna said:
Interesting question. I started thinking about it and then I realised that it's hard imagining what it would be like living on something different than earth. Perhaps fun with slightly lower gravity? Two suns of different classes for interesting mood-changes during the day, like a blue and an orange one? A ring would be nice to have for some spectacular views I guess.

Anyone else thinks that Frontiers earth-likes look slighly of? The coast-lines are to fractal I think, they should do some work on that... very few coasts on earth have that very fractal, archipelago-ish appearance.
Click to expand...
Regarding the coastlines, on Earth our coastlines are shaped by factors such as tides, surface erosion and the ocean currents and deposition of sediments, probably none of which are (yet) modelled for in-game Earth-like Worlds (most of which don't have moons to have strong tides). These are very complex things to procedurally generate. It will also affect the coastlines of any world with seas, be they of methane, ammonia or water, so it is something that FD are probably researching as to how much they can do for landing on atmospheric planets - but it is probably years away from featuring in the game.
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Landable worlds have plate tectonics in Horizons so getting the outlines of the surface land mass and setting an appropriate sea level is something that could be done at the moment but the Earth-like Worlds have no rivers and the clouds are, as I understand it, just static with no changing/seasonal weather patterns or precipitation, etc. . Rivers change their paths gradually as well and leave signs of their passage behind, so it quickly becomes very complicated if you want to model how the landscape changes over thousands of years with other climate variations thrown in, never mind doing this over billions of years for every planet in a system in the few seconds you have to open the system map (whenever you open the System Map, Stellar Forge has to generate all the planets and their surfaces). It will be interesting to see how much of a compromise FD eventually decide to have between realism and what can actually be generated by the Stellar Forge in the time available. For me, the lack of rivers is the thing that stands out the most at the moment.
 
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Iskariot

Iskariot
Traesha said:
With the recent discovery of more "habitable" worlds in this time the Trappist-1 system.
Click to expand...

Whether these worlds are habitable remains to be seen.
The press has done an awful job reporting on this.

Scientist talk about earth sized worlds and that is all.
I wouldn't call them earth-like until we have much more data.
We might not even be able to gain such data for years to come.
 
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Traesha

Traesha
So far, I haven't found any ringed earth-likes yet and just 1 earth-like which was supported by 2 stars, but they are there.
I have found 2 earth likes which are moons of gas giants though.

Low gravity is a good thing. You need less energy / fuel to get around.
But what about temperature? I would guess most of us would appreciate the average somewhere between 295 - 310 K..
Also to keep in mind is oxygen lvl. Higher lvl means increased chance of hyperoxie. Earth lvl is 21%. Nothing troubling if there is 25-29% but I wouldn't want to live on a planet with concentrations above 30%.
So I would think 25-29% oxygen in atmosphere may be perfect.

Then there is the proximity to the star.
Is living under a class A star more comfortable then living under a class M star? It seems to be the case, as solar flares can damage the atmosphere of nearby planets.
Anyways, I am sure there are "perfect" earth likes out there.

- - - Updated - - -

Iskariot said:
Whether these worlds are habitable remains to be seen.
The press has done an awful job reporting on this.

Scientist talk about earth sized worlds and that is all.
I wouldn't call them earth-like until we have much more data.
We might not even be able to gain such data for years to come.
Click to expand...

Yeah, I don't think they are "earth-like" either. It wouldn't be in our lifetime but maybe in the future (when travel at lightspeed is possible) the planets can be terraformed, if such a thing is even possible. Good luck trying to terraform Mars lol.
 

Bjorna

B
Yeah, higher oxygen level would be nice! Nice I have this mental image of bouncing along happily in low G without ever getting short of breath! Looking it up, apparently higher O2-levels is correlated with lower precipitation and cooler temperatures, so that's nice as well. Better watch out for out of control wild-fires though...

As for the coast-lines, in my ignorance I was thinking that you could just stop the fractal iteration one of a couple of steps earlier and introduce some random noice to break up straight lines, but it's probably way more complex than that and may plug into future plans for erosion, rivers and stuff like that like you say. Hm, now I wish I could look at the code they use.
 

iain666

iain666
I'm not sure that the average temperature is the important thing, so long as there's a reasonably sized temperate band even if that's at lower or higher latitudes on earth it's not that much of a problem.

Don't forget you need to look at the O2 percentage in relation to the atmospheric pressure, it's the partial pressure that's key to whether you end up suffering the ill effects of hyperoxia or hypoxia.

Axial tilt could be important and possibly subjective to an extent - how much variety would you like in your seasons?
 

yodajedifishmaster

yodajedifishmaster
i found a binary ELW system. i would want to live there - you can then take your vacations on the ELW which you will see as a moon when you get bored. oh and there should be some immoral young ladies around and plenty of drinks.
 
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Traesha

Traesha
iain666 said:
I'm not sure that the average temperature is the important thing, so long as there's a reasonably sized temperate band even if that's at lower or higher latitudes on earth it's not that much of a problem.

Don't forget you need to look at the O2 percentage in relation to the atmospheric pressure, it's the partial pressure that's key to whether you end up suffering the ill effects of hyperoxia or hypoxia.

Axial tilt could be important and possibly subjective to an extent - how much variety would you like in your seasons?
Click to expand...

Ty for your response Iain, yeah there is more to it then usual if you want to live long / perform expedition robinson without a space suit on a different planet.
Anyways, from the information I gathered it looks like 1.0-1.8 atmospheric pressure may be allright, also because a "perfect" earth-like with oxygen lvl's below 30% but above 21% would also be nice

And axial-tilt... yeah I guess I want 295-310 degrees Kelvin almost all the time so that must be close to 0.
 
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Traesha

Traesha
Ok, with all the info gathered I am now searching for a "perfect" ELW, both on the list and by myself. I noticed a planet with higher then Earth Surface Pressure and high oxygen lvl's is either very rare or doesn't exist. And lower then usual Surface pressure looks not to be a problem. People on earth live on 6000 feet above sea lvl without problem.

Anyways.. to be considered "perfect", the earth-like world needs to have:

Gravity: less then 0.8
Surface Temperature: around 300K
Surface Pressure: 0.75 or higher
Atmosphere: 25-30% Oxygen
Axial Tilt: close to 0 (with variables up to: -18 / 18)

I am pretty sure with these variables I will be able to find candidates.
 
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yodajedifishmaster

yodajedifishmaster
Traesha said:
Ok, with all the info gathered I am now searching for a "perfect" ELW, both on the list and by myself. I noticed a planet with higher then Earth Surface Pressure and high oxygen lvl's is either very rare or doesn't exist. And lower then usual Surface pressure looks not to be a problem. People on earth live on 6000 feet above sea lvl without problem.

Anyways.. to be considered "perfect", the earth-like world needs to have:

Gravity: less then 0.8
Surface Temperature: around 300K
Surface Pressure: 0.75 or higher
Atmosphere: 25-30% Oxygen
Axial Tilt: close to 0 (with variables up to: -18 / 18)

I am pretty sure with these variables I will be able to find candidates.
Click to expand...

dont forget the drinks and immoral young persons. (both depend on personal preference :D ) or it wont be all that fun a party.
 

Traesha

Traesha
Took me a month with the time I spend in this game to find a very good earth-like to live on:

Here it is: link

Gravity: less then 0.8: Done! 0.76G
Surface Temperature: around 300K A tad high: 319K, there are polar regions though.. and.. days are shorter then on earth, I think it will be great temperature wise.
Surface Pressure: 0.75 or higher: Done! 0.78
Atmosphere: 25-30% Oxygen Fail.. unfortunately.. 22.8%, which is.. fortunately higher then Earth.
Axial Tilt: close to 0 (with variables up to: -18 / 18) Done! -9.81

And here is a picture with me in my Viper Mk IV flying in the atmosphere of this planet.

If I could choose between this planet and earth... it would be so much this one!
 
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