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Azia Burgi Caldari Science and Trade Institute	Posted - 2008.01.22 14:42:00 - [1] Hello Everyone! With the recent data export I decided to see how many of the 45,000+ planets in New Eden are actually habitable. Of the three types of planet in Eve I have decided that only Solid planets are habitable. Not many humans live on gas giants or at least none of the ones I have met do (maybe I'm not going to the right bars). This returns 15,000 results. Now I have to work out if the planet lies in the comfort zone or life band of its parent star. This is where it warm enough for liquid water to exist on the surface. To do this I followed the guide here: http://www.cix.co.uk/~morven/worldkit/#astro-sun Any planet where the orbital radius is less then the value in Rmin is probably too hot and any planet over Rmax is probably far too cold for humans. So the number of planets in this zone is 740. Next we have narrow down the surface temperature to only include temperatures between 0C and 100C. The database lists the average global surface temperature in Kelvin. There are 3 planets with Venus like temperatures (over 1000C) and 548 planets with sub-zero temperatures, leaving 189 planets where liquid water can occur. So we have liquid water, next thing needed for normal healthy humans is gravity. According to this website Earth has a gravity of 9.8m/s^2. No planet in the database has this gravity, but there are several pretty close. I've assumed that a deviation of +/-1 from standard gravity is safe enough for human physiology for extended periods of time. They are (sorry about the formatting): itemNamesurfaceGravityDeviationFromStdGrav 0-6VZ5 III10.78450.9845 Eurgrana V10.2010.401 Enedore II9.53309-0.26691 B-DXO9 III9.50157-0.29843 JE-VLG II9.47627-0.32373 HJO-84 IV9.01057-0.78943 J-Z1UW IV8.90512-0.89488 As you can see Enedore II is the closest to standard gravity. Happily it also the warmest surface temperature at 13.39C. It is also similar in size to Earth 12,394.04km in diameter. The density is also close to Earth at 5503.87kg/m^3. The game claims that it has a year of 51 days, where as my calculations give it a year of 520 days, which seems more reasonable given the distance from its parent star. The database lists the orbitPeriod as 44908900, assuming this figure is meant to represent seconds the formula to work out days is (((orbitPeriod/60)/60)/24). If someone else can confirm this I'll be very grateful. That's the end of my analysis/novel. I hope you have enjoyed it, any and all comments are readily accepted. I can provide my workings spreadsheet on request. Azia Burgi http://azia.geekandproud.co.uk BP Profit Calculator EVE Cemetery
Miss Anthropy The Greater Goon GoonSwarm	Posted - 2008.01.22 14:56:00 - [2] At least we've got somewhere to go when Earth gets nerfed then.
Oniko Sengir The Illuminati. Triumvirate.	Posted - 2008.01.22 15:06:00 - [3] Sounds like fun :P video
ToxicFire Phoenix Knights Dark Nebula Galactic Empire	Posted - 2008.01.22 15:07:00 - [4] think we can safely say ccp needs to employ an astrophysicist rather than an economic dude ------------------------------------------ Sig removed as it lacks EVE-related content. Mail [email protected] if you have questions. -Hango
Zor Chayne Hedion University	Posted - 2008.01.22 15:08:00 - [5] Originally by: Miss Anthropy At least we've got somewhere to go when Earth gets nerfed then. haha, yes, nerf! too much stuff gets nerfed! welld one!
Saietor Blackgreen	Posted - 2008.01.22 15:10:00 - [6] Originally by: ToxicFire think we can safely say ccp needs to employ an astrophysicist rather than an economic dude Too late. Cladari Prime is unhabitable already :)
ApaKaka Lone Starr Corporation	Posted - 2008.01.22 15:11:00 - [7] Nice analysis. However. I find beer is a necessity for my race to survive in any clime. Can you query your database for planets with Beer Oceans on them?
Monty Kvaran Caldari Consolidated Sprocket	Posted - 2008.01.22 15:16:00 - [8] I think you could safely expand your gravity tolerance, anywhere from 0.5G to 1.5G or even 2.0G should be reasonably habitable. Also, colder planets would be perfectly habitable (though not necisarily conducive to evolution). I would say anything with an Average Temp >-25C would have at least habitable zones. .
Azia Burgi Caldari Science and Trade Institute	Posted - 2008.01.22 15:34:00 - [9] Originally by: Monty Kvaran I think you could safely expand your gravity tolerance, anywhere from 0.5G to 1.5G or even 2.0G should be reasonably habitable. Also, colder planets would be perfectly habitable (though not necisarily conducive to evolution). I would say anything with an Average Temp >-25C would have at least habitable zones. I'm going to have to disagree on the gravity aspect. While it would well within the realms of the technology of eve to terraform a planet to bring it closer to the atmospheric conditions we enjoy on earth. It's pretty impossible to change the gravity of a planet. There are serious medical conditions to consider. If the gravity is too weak you get tall willowly people with weak bones and poor muscles. If the gravity is too strong you risk premature heart failure and serious injury. If you fall over in 2G (19.6m/s^2) you hit the floor twice as hard. Azia Burgi http://azia.geekandproud.co.uk BP Profit Calculator EVE Cemetery
Surfin's PlunderBunny Minmatar mUfFiN fAcToRy Sex Panthers	Posted - 2008.01.22 15:36:00 - [10] Originally by: Azia Burgi Originally by: Monty Kvaran I think you could safely expand your gravity tolerance, anywhere from 0.5G to 1.5G or even 2.0G should be reasonably habitable. Also, colder planets would be perfectly habitable (though not necisarily conducive to evolution). I would say anything with an Average Temp >-25C would have at least habitable zones. I'm going to have to disagree on the gravity aspect. While it would well within the realms of the technology of eve to terraform a planet to bring it closer to the atmospheric conditions we enjoy on earth. It's pretty impossible to change the gravity of a planet. There are serious medical conditions to consider. If the gravity is too weak you get tall willowly people with weak bones and poor muscles. If the gravity is too strong you risk premature heart failure and serious injury. If you fall over in 2G (19.6m/s^2) you hit the floor twice as hard. And fat people are twice as dangerous to be near in case they fall over () () (â;..;)â (")(")

Azia Burgi Caldari Science and Trade Institute	Posted - 2008.01.22 15:51:00 - [11] more to the point they would weigh twice as much! Azia Burgi http://azia.geekandproud.co.uk BP Profit Calculator EVE Cemetery
Janu Hull Caldari Terra Incognita Dark Matter Coalition	Posted - 2008.01.22 15:52:00 - [12] Be wary of your orbital period calculations. Planets have been discovered with orbital velocities in excess of four times Earth's in other star systems. It is not beyond conception that extremely short periods are possible for Earthlike planets.
Korran Minare Gallente Spaced Cowboys Dread Sovereign	Posted - 2008.01.22 16:03:00 - [13] and actually no capsuleer would want to land on a planet with twice normal gravity because he wouldnt be able to walk outside, i mean we spend our time in a gel filled pod, walking inside our ship would be one thing because of the artificial gravity but you wouldnt want to go outside, your weight would instantly double Originally by: Korran Minare what would you put on space pizza anyway????
Azia Burgi Caldari Science and Trade Institute	Posted - 2008.01.22 16:15:00 - [14] Edited by: Azia Burgi on 22/01/2008 16:15:30 Originally by: Janu Hull Be wary of your orbital period calculations. Planets have been discovered with orbital velocities in excess of four times Earth's in other star systems. It is not beyond conception that extremely short periods are possible for Earthlike planets. The orbit period is listed as 44908900. The only sensible thing i can think this figure means is seconds. if you can get 51 days from that figure in a logical way i am all ears. edit: grammar Azia Burgi http://azia.geekandproud.co.uk BP Profit Calculator EVE Cemetery
Lord Bleu MisFunk Inc. Frontline.	Posted - 2008.01.22 16:48:00 - [15] T.O.O.M.U.C.H.T.I.M.E.O.N.Y.O.U.R.H.A.N.D.S -------
Tarminic Forsaken Resistance The Last Stand	Posted - 2008.01.22 17:09:00 - [16] Edited by: Tarminic on 22/01/2008 17:09:33 Originally by: Azia Burgi Originally by: Monty Kvaran I think you could safely expand your gravity tolerance, anywhere from 0.5G to 1.5G or even 2.0G should be reasonably habitable. Also, colder planets would be perfectly habitable (though not necisarily conducive to evolution). I would say anything with an Average Temp >-25C would have at least habitable zones. I'm going to have to disagree on the gravity aspect. While it would well within the realms of the technology of eve to terraform a planet to bring it closer to the atmospheric conditions we enjoy on earth. It's pretty impossible to change the gravity of a planet. There are serious medical conditions to consider. If the gravity is too weak you get tall willowly people with weak bones and poor muscles. If the gravity is too strong you risk premature heart failure and serious injury. If you fall over in 2G (19.6m/s^2) you hit the floor twice as hard. I think that given the current level of EVE's technology, variations in gravity wouldn't be quite as much of a problem. It's entirely possibly that the four races have technology capable of altering local gravity, so on a world of 2.5Gs you could use this technology to reduce the gravity around your habitation structures. Heck, even without that it would be entirely possible to use gene therapy to make sure individuals living on planets with a high/low gravity are suitably healthy, and implants could make up for anything else. Originally by: Surfin's PlunderBunny And fat people are twice as dangerous to be near in case they fall over Fat people would most likely lose those extra pounds pretty quickly...or die in the process. ---------------- Tarminic - 31 Million SP in Forum Warfare Play EVE: Downtime Madness v0.78.2
Azia Burgi Caldari Science and Trade Institute	Posted - 2008.01.22 17:21:00 - [17] I've just pulled up the figures for the racial homeworlds. Makes for interesting viewing. It also makes you wonder how the races survived the collapse of the Eve Gate. http://azia.geekandproud.co.uk/stuff/RacialHomeworldData.txt Azia Burgi http://azia.geekandproud.co.uk BP Profit Calculator EVE Cemetery
Spoon Thumb Paladin Imperium	Posted - 2008.01.22 17:43:00 - [18] /me suspects that these figures might just get tweaked come planetary interaction Khaldari khanidpublic: RP channel for Kingdom loyalists Recruiting
Janu Hull Caldari Terra Incognita Dark Matter Coalition	Posted - 2008.01.22 17:53:00 - [19] Edited by: Janu Hull on 22/01/2008 17:54:32 Originally by: Azia Burgi Edited by: Azia Burgi on 22/01/2008 16:15:30 Originally by: Janu Hull Be wary of your orbital period calculations. Planets have been discovered with orbital velocities in excess of four times Earth's in other star systems. It is not beyond conception that extremely short periods are possible for Earthlike planets. The orbit period is listed as 44908900. The only sensible thing i can think this figure means is seconds. if you can get 51 days from that figure in a logical way i am all ears. edit: grammar I came up with 519 days, 18 hours, 41 minutes, 40 seconds. If its tenths of a second as a base measure, then you get 51 days.
Azia Burgi Caldari Science and Trade Institute	Posted - 2008.01.22 18:29:00 - [20] Originally by: Janu Hull I came up with 519 days, 18 hours, 41 minutes, 40 seconds. If its tenths of a second as a base measure, then you get 51 days. There is no clear indication as to what the figure in the DB is measured as. Azia Burgi http://azia.geekandproud.co.uk BP Profit Calculator EVE Cemetery

Ed Anger Weekly World News Derek Knows Us	Posted - 2008.01.22 19:26:00 - [21] Originally by: Azia Burgi Originally by: Janu Hull I came up with 519 days, 18 hours, 41 minutes, 40 seconds. If its tenths of a second as a base measure, then you get 51 days. There is no clear indication as to what the figure in the DB is measured as. i am curious how the space ether that slows our ships to a stop speeds up the orbit of planets. interesting.
Vicarrah Minmatar Hand Of The Tahiri Namtz'aar k'in	Posted - 2008.01.22 19:34:00 - [22] According to the backstory, every single planet that now has life on it within the eve cluster has been settled in antiquity. Earth (although its primarily a myth) is on the other side of the eve-gate (which no-longer works) so finding it could be a little tricky. Good point about some of that planetary data though... living on 0.16G planet would be.... interesting. of course, although I don't know whether its mentioned in canon, I'm assuming that gravity manipulation is possible and common place, as people living in stations would have a pretty hard time walking around. (and again we don't hear any mention of them flying) Vicarrah Tahiri Matriarch
Daelorn State War Academy	Posted - 2008.01.22 19:51:00 - [23] Earth is in Jove space. The Jovians use to be humans. Seeee when the EVE gate opened it not only sent the first explorers off into the distant stars but it also sent them to the future! So while the 4 races were trying to rebuilt, earth was continuing to advance and stuff
Spaceman Jack	Posted - 2008.01.22 20:10:00 - [24] VERY COOL!!! I love the initiative. However, the comfort zone for the planets orbit would change depending on the energy output of the sun, so this could change of the sun was more or less energized. Not to mention that with current EVE technology and climate control more planets are inhabitable than ever before (gas or water included).
Aenigma Griefwatch	Posted - 2008.01.22 20:21:00 - [25] If you go look around, you will also find stars that are way older than the currently known age of the universe. Eve is set in the future, but not that far. BattleClinic \| Griefwatch
duckmonster GoonFleet GoonSwarm	Posted - 2008.01.22 20:22:00 - [26] Whats the little twinkly star thats seemed to be around since revelations. You know the wierd bright one. -----------
Mallikan Gallente Genesis Nation	Posted - 2008.01.22 20:29:00 - [27] Neat, I've always wondered this. --- lol.. I messed up.
Khonsu Celestial Apocalypse	Posted - 2008.01.22 21:15:00 - [28] Quick question. It's already easily observable that the EVE universe doesn't comply with the rules of the real universe. Why would the question of habitability have to follow the rules of the real universe when nothing else does?
Letouk Mernel	Posted - 2008.01.22 21:39:00 - [29] Habitable, ok. If you wanted to figure out which planets are inhabited, I'd imagine that's much easier. Simply look for all planets that have one of the few textures that depicts lights / highways / civilization. Although, given CCP's attention to detail when it comes to fluff, I think you'll get contradictory results (for example, planets that their chronicles and stories say are inhabited, not being so). It would be interesting trying to calculate what percentage of the universe's population lives in space (by calculating the total number of stations, ships, outposts, and estimating their crew/population complements).
Ravia Halo	Posted - 2008.01.22 21:44:00 - [30] Originally by: duckmonster Whats the little twinkly star thats seemed to be around since revelations. You know the wierd bright one. I've been wondering this too. I thought maybe its some feature coming soon that's lighting up the sky, but it would take centuries for a single light source to reach every system in Eve. Anyone know?



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