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Forum » SpaceEngine » Space Journeys » Challenge: The Quest for Earth's Twin (Find the closest possible match to our home planet)
Challenge: The Quest for Earth's Twin
Which Terra is as similar as possible to Earth?
1.earth match 90-100%[ 44 ][78.57%]
2.earth match 80-90%[ 10 ][17.86%]
3.earth match 70-80%[ 6 ][10.71%]
4.earth match 60-70%[ 2 ][3.57%]
5.earth match 50-60%[ 3 ][5.36%]
6.earth match 40-50%[ 3 ][5.36%]
7.earth match 30-40%[ 4 ][7.14%]
8.earth match 20-30%[ 2 ][3.57%]
9.earth match 10-20%[ 2 ][3.57%]
10.earth match 0-10%[ 5 ][8.93%]
Poll expiry date: Tuesday, 23.11.2021, 09:34
Answers total: 56
HarbingerDawnDate: Friday, 08.03.2013, 20:50 | Message # 106
Cosmic Curator
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Quote (borek555)
Salvo coords maybe?

You can search every world in SpaceEngine if you like, you will never find a world that looks like that cool





All forum users, please read this!
My SE mods and addons
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NovaSiliskoDate: Friday, 08.03.2013, 22:15 | Message # 107
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Well, you'll find one tongue
 
migratingmynahDate: Saturday, 09.03.2013, 05:20 | Message # 108
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Quote (Salvo)
It's my lucky day! I found Earth's twin!! biggrin


How did you do that? blink





Bye
 
SalvoDate: Saturday, 09.03.2013, 15:26 | Message # 109
Star Engineer
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Quote (migratingmynah)
How did you do that? blink


I just removed Diff Map biggrin

Code
Planet    "Earth"
{
  ParentBody     "Earth-Moon"
  Class          "Terra"

  Mass            1.0   // M_Earth
  Radius          6378.14     // km
  //Oblateness      0.0034

  Age             4.54        // billions years

  RotationPeriod  23.9344694  // hours
  RotationOffset  100.5       // degrees
  Precession      25592       // years
  Obliquity       23.4392911  // degrees
  EqAscendNode    180.0

  Color         ( 0.850 0.850 1.000 )
  Albedo          0.367

  Surface
  {
   //DiffMap        "Earth/Surface"
   DiffTileSize    514
   DiffTileBorder  1
   DiffMapAlpha   "Water"
   BumpMap        "Earth/Bump"
   BumpTileSize    514
   BumpTileBorder  1
   BumpHeight      9.486 // 0.907 + 8.579 km - total height
   BumpOffset      0.907 // 0.907 km - below sea level
   //BumpMap        "Earth/Bump-gebco"
   //BumpTileSize    514
   //BumpTileBorder  1
   //BumpHeight      19.007 // 10.577 + 8.430 km - total height
   //BumpOffset      10.577 // 10.577 km - below sea level
   Exposure  2.0
   Life            true
   colorSea        (0.00, 0.03, 0.06, 0.20)
   colorShelf      (0.02, 0.06, 0.13, 1.00)
   colorBeach      (0.57, 0.44, 0.40, 0.00)
   colorDesert     (0.38, 0.24, 0.14, 0.00)
   colorLowland    (0.44, 0.34, 0.31, 0.00)
   colorUpland     (0.57, 0.54, 0.42, 0.00)
   colorRock       (0.52, 0.42, 0.34, 0.00)
   colorSnow       (1.00, 1.00, 1.00, 0.50)
   colorLowPlants  (0.18, 0.24, 0.09, 0.00)
   colorUpPlants   (0.15, 0.17, 0.07, 0.00)*/
  }

  Ocean
  {
   Height 0.907
  }

  Atmosphere
  {
   Height      60  // km
   Greenhouse  35  // degrees K
   Pressure    1.0  // atm
   Density     1.2929    // kg/m^3
   Model      "Earth"
   Bright      10.0
   Opacity     1.0
   SkyLight    3.0
   EclipseBright  250.0
   EclipseColor ( 1.000 0.600 0.200 )
  }

  Orbit
  {
   Period          0.07480422854    // years
   SemiMajorAxis   0.000031610219244232    // a.u.
   Eccentricity    0.0549
   Inclination     5.15  // deg
   MeanAnomaly     135.27  // deg
   AscendingNode   125.08  // deg
   ArgOfPericen    138.15  // deg
   //AscNodePreces   18.6  // years
   //ArgOfPeriPreces 5.997  // years
   RefPlane      "Ecliptic"
  }
}





The universe is not required to be in perfect harmony with human ambition.

CPU: Intel Core i7 4770 GPU: ASUS Radeon R9 270 RAM: 8 GBs

(still don't know why everyone is doing this...)
 
migratingmynahDate: Saturday, 09.03.2013, 16:24 | Message # 110
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Looks so much fitting with the other terras in SE yes




Bye
 
neutronium76Date: Tuesday, 02.04.2013, 15:40 | Message # 111
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I just want to say that I am planning to revive this old challenge once the new version (0.97) comes out. However this poll-type thread was a failure and the expiry date is lol biggrin . So I am kindly asking for the asistance of the mods to delete this thread or render it dormant and move it to the archive section. In the meantime, Harbinger's challenges would keep us all happy and with something to do until 0.97 comes out smile .

The new challenge will be much more intresting because the new version will include an exciting new feature: the ESI (Earth Similarity Index) and it will be much easier to quantify and measure the results cool .

What do you guys think?





PC1:Core i7 970@3.34GHz, 6 cores/12 threads, 12GB DDR3 RAM@1.34GHz, 2x(SLI) GTX-580 GPUs 3GB VRAM(GDDR5)@1GHz, OS:Win7x64SP1
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VoekoevakaDate: Tuesday, 02.04.2013, 16:19 | Message # 112
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Quote (neutronium76)
The new challenge will be much more intresting because the new version will include an exciting new feature: the ESI (Earth Similarity Index) and it will be much easier to quantify and measure the results cool .

Great idea. I was about to say exactly the same thing.

P.S. : Since the creation of this thread, I havn't understand the goal of the poll at the beginning.





Want some music of mine ? Please go here !

 
neutronium76Date: Tuesday, 02.04.2013, 18:06 | Message # 113
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Quote (Voekoevaka)
P.S. : Since the creation of this thread, I havn't understand the goal of the poll at the beginning.


Me too biggrin





PC1:Core i7 970@3.34GHz, 6 cores/12 threads, 12GB DDR3 RAM@1.34GHz, 2x(SLI) GTX-580 GPUs 3GB VRAM(GDDR5)@1GHz, OS:Win7x64SP1
PC2:Core2Quad X9770@3.2GHz, 2 cores/4 threads 4GB DDR2 RAM@1GHz, GTX-285 GPU 1GB VRAM(DDR3)@1.24GHz, OS:WinVistax64SP2
 
DisasterpieceDate: Tuesday, 02.04.2013, 22:27 | Message # 114
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But you made it. I am with a blown mind.




I play teh spase engien
 
TimDate: Tuesday, 02.04.2013, 22:41 | Message # 115
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It basicallys says:
What is the correct answer to this question?

a. the correct answer
b. the wrong answer
 
Gondor2222Date: Wednesday, 24.07.2013, 03:20 | Message # 116
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This is actually a moon, but it has the highest ESI i've found so far as well as the most striking superficial resemblance to Earth 1 billion years ago. However, it has no life, and has significantly less water than the Earth. Its ESI fluctuates between about 0.94 and 0.98.


Shown here is the moon's hemisphere facing the planet. Oddly enough, although the moon is tidally locked, it is this hemisphere that displays the most variation in elevation. Perhaps the moon's large core powers tectonic activity that does away with craters and creates these venus-like structures, as well as preserving the planet's atmosphere.



This is the moon's hemisphere facing away from the planet. This hemisphere's bodies of liquid resemble those on Titan, though these are almost certainly water instead of hydrocarbons.



It is the outermost moon of a class II gas giant of roughly 1.4 Jupiter masses, and orbits on an extremely inclined plane (~100 degrees). This means that its daylit side rotates around the planet on a plane nearly perpendicular to its rotational plane, and its days on certain constantly moving points are created almost entirely by the orbit of the planet. This allows the moon's axial tilt relative to the parent star to rotate between about -80 and 80 degrees, creating erratic daylight cycles that are nearly identical but phase shifted from any location on the moon. Because the moon's orbital period and the planet's orbital period differ by a factor of almost exactly 6 (~54-~324 earth days, closer to 6.012), these day lengths depend on the moon's orbit number (6 in each of the planet's orbits) as well as a longer 12 earth year cycle. This makes day lengths extremely difficult to casually predict for any point on the planet.

The moon's semimajor axis of just over 3% that of the planet, and the planet has an orbital eccentricity of about 0.05, so temperature fluctuations due to the moon's changing distance from the parent star are neither negligible nor regular. At certain times, the moon orbits in a plane normal to the line joining the planet and the star, so orbital fluctuations are negligible. At others the moon's orbit is coplanar to the line joining the planet and the star, so orbital fluctuations reach several degrees kelvin. Overall, the moon's distance to the star varies between about 0.8351 AU and 1.006 AU, with average global temperatures between 274 K and 300 K. This means the moon's ESI fluctuates between about 0.94 and 0.98.

The moon system of this giant is more compact further in, so all of the other moons appear as very bright starlike points from this outermost moon. The gas giant almost never transits the sun as seen from the moon, and the moon almost never casts a shadow on the gas giant, due to the moon's extremely high inclination.

The Moon is RS 8404-3584-7-8-400 3.7

Attachments: 5855474.jpg(173Kb) · 5994255.jpg(123Kb) · 4280259.jpg(107Kb) · 5137563.jpg(112Kb)


Edited by Gondor2222 - Wednesday, 24.07.2013, 03:24
 
LostInSpaceDate: Sunday, 28.07.2013, 23:23 | Message # 117
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Today I decided to look for a specific area of space to see if I could find anything interesting and after only looking at a few systems I find this planet... crazy



This is one of the prettiest planet I seen so far ... and the most wonderful about it is that is very similar to Earth in many ways... and have also a GREAT diversity of landscapes... so here's a few screenshots of some oceans/vegetation/mountains seen from the surface of this Earth-twin happy ...








Also... I noticed how not only this planet look like our earth, THE MOON IS ALSO VERY SIMILAR TO OUR MOON shok rtfm

So I found an Earth-like planet with a nice orange moon-like moon ohyes and this ... is pretty cool ... cool

Here is screenshots of/from the moon... happy





I really hope you guys enjoy my discovery smile It is one fine planet and i'm excited I found it ... looking in a pretty specific area also which made me feel very good yahoo some replies would be appreciated hehe tell me what you guys think about it? huh blink

Later, Have a nice day... victory

Attachments: 7136175.jpg(428Kb) · 1296265.jpg(299Kb) · 7829397.jpg(529Kb) · 0793095.jpg(383Kb) · 7514252.jpg(247Kb) · 4310103.jpg(265Kb) · 0317874.jpg(241Kb) · 7220270.jpg(309Kb) · 3385921.jpg(255Kb) · 3355280.jpg(464Kb)
 
neutronium76Date: Monday, 29.07.2013, 09:25 | Message # 118
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Gondor2222, LostInSpace this thread is outdated. Please wait for the new challenge. It will start when SE 0.9.7.1 comes out
SE 0.9.7.0 doesn't have planets with life on single star systems.

To the mods: Please move this thread to archive. Thank you.





PC1:Core i7 970@3.34GHz, 6 cores/12 threads, 12GB DDR3 RAM@1.34GHz, 2x(SLI) GTX-580 GPUs 3GB VRAM(GDDR5)@1GHz, OS:Win7x64SP1
PC2:Core2Quad X9770@3.2GHz, 2 cores/4 threads 4GB DDR2 RAM@1GHz, GTX-285 GPU 1GB VRAM(DDR3)@1.24GHz, OS:WinVistax64SP2
 
SalvoDate: Monday, 29.07.2013, 09:58 | Message # 119
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Quote (neutronium76)
Please move this thread to archive. Thank you.


We could keep it until 0.9.7.1, someone could find a nice terra with life under a nice multiple system smile





The universe is not required to be in perfect harmony with human ambition.

CPU: Intel Core i7 4770 GPU: ASUS Radeon R9 270 RAM: 8 GBs

(still don't know why everyone is doing this...)
 
Crashman1390Date: Tuesday, 30.07.2013, 19:30 | Message # 120
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Salvo, could you be able to do procedural generation to other planets?

EDIT: There is a bit of a problem with the height for procedural earths land.



Attachments: 5725551.jpg(106Kb) · 7098361.jpg(72Kb)





[b]I was wrong, this forum still has a horrible community.[/b]

Edited by Crashman1390 - Wednesday, 31.07.2013, 04:02
 
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