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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
FreyrDate: Friday, 02.12.2011, 02:02 | Message # 16
Space Tourist
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United Kingdom
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I thought I would just cruise around our galaxy a moment ago at high speed and imagine that my space drive just died out. So im stuck looking for some where to survive I find this a temperature terra with life and a calid oceania with life in orbit looks a bit like earth small islands continents and large oceans. Its also a long way from earth 6175 parsecs/20153 light years.

Location: RS 8404-118-3-22-9764 3



Code
Place    "Temp Terra with life in Milkyway"
{
         Body    "RS 8404-118-3-22-9764 3"
         Parent    ""
         Pos  (3.470588809056679e-010, 7.531217505797905e-011, -1.385656269586521e-010)
         Rot  (0.5221161881150358, -0.4676556829220545, 0.680471589164304, -0.2136615657509281)
         Date    "2011.11.29 15:33:25.81"
         Vel  8.7582649e-012
         Mode    1
}





_____________________________________________________

Intel® Core™ i5-2500K CPU @ 3.30GHz (4 CPUs)
Windows 7 Home Premium 64-bit 8192MB RAM
NVIDIA GeForce GTX 550 Ti


Edited by Freyr - Friday, 02.12.2011, 08:46
 
neutronium76Date: Friday, 02.12.2011, 22:57 | Message # 17
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Greece
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I found this one with no life (so it can not be submitted sad )


It's diameter is 0.99% that of earths but its mass is much higher so its gravity is much higher too.
It's temperature is 22-23 degrees Celsius which is just perfect for evolution of life.
It also has 1 moon - although much larger and much closer compared with earths

here's the code for "places.cfg"
Code

Place    "A temperate terra with 0.99% earths D"
{
      Body    "RS 8404-370-9-47923238-107 3"
      Parent    ""
      Pos  (2.58130318130726e-009, 4.967784329476142e-011, 5.447272776733601e-010)
      Rot  (-0.7052127123044274, -0.1154102487498714, -0.6784812684277209, -0.170348681475486)
      Date    "20654.09.04 11:30:19.13"
      Vel  1.9192318e-011
      Mode    1
}


Ps: Freyr just one picture with HUD on is enough - this is not a beauty contest wink





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


Edited by neutronium76 - Friday, 02.12.2011, 23:04
 
TalismanDate: Monday, 19.12.2011, 09:32 | Message # 18
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I think I may have found my submission.

Ross 986 A5





 
SpaceEngineerDate: Monday, 19.12.2011, 10:17 | Message # 19
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Russian Federation
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Talisman, screenshot?




 
TalismanDate: Monday, 19.12.2011, 20:18 | Message # 20
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Here.

Technically it may not be very similar to earth, seeing as it is a dwarf planet, and has a temperature of only roughly 110 kelvin and its main star being a red dwarf with a brown dwarf companion.

But I think it does look like an "earth" like planet and it does have only one selina moon. As well as being very close to earth!



Use the object finder to find it. It's called Ross 986 A5





 
neutronium76Date: Monday, 19.12.2011, 20:43 | Message # 21
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Hmm. I am sceptic about your submission Talisman. Your planet is nowhere similar to earth apart from the fact that it has a single selena.
1. It is way too small: 2637Km in diameter.
2. It has a 1% mass of earth blink
3. It has 1/4th earth's g
4. It is freaking cold! -163 Celsius!! What are we going to breath? liquid nitrogen? biggrin

Anyway it does look beautiful so you would get some points for that - if it was a cool terra contest wink

Check out that one:
Code
Place    "Terra Nova? "
{
  Body    "RS 8404-315-8-10852347-190 A5"
  Parent    ""
  Pos  (3.501106963978849e-010, -3.032099643471658e-009, -

1.310148604128994e-009)
  Rot  (-0.1251760578345737, -0.2860822756900075,  

0.7888432944270671, -0.5293525695776619)
  Date    "10262.08.03 01:25:38.49"
  Vel  1.629397e-011
  Mode    1
}






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


Edited by neutronium76 - Monday, 19.12.2011, 20:55
 
SpaceEngineerDate: Tuesday, 20.12.2011, 00:27 | Message # 22
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Quote (neutronium76)
1. It is way too small: 2637Km in diameter. 2. It has a 1% mass of earth 3. It has 1/4th earth's g 4. It is freaking cold! -163 Celsius!! What are we going to breath? liquid nitrogen?


This is a strange working of the system generator... It generates dense atmosphere and water on Moon-sized planets, and generates very cold planets with liquid water. I will fix that in next version. So finding system with 8 live planets will be much more difficult than in version 0.95 smile

*





 
SpaceEngineerDate: Wednesday, 28.12.2011, 10:22 | Message # 23
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Maybe the Earth Similarity Index (ESI) may be useful for our purpose: https://sites.google.com/a....methods

*





 
neutronium76Date: Wednesday, 28.12.2011, 12:16 | Message # 24
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Quote (SpaceEngineer)
Maybe the Earth Similarity Index (ESI) may be useful for our purpose: https://sites.google.com/a....methods


Hmm. Very intereting! I am looking at this equation and yours and honestly I am totally confused as to which one is better wacko . My math skills need serius refurbishing 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
 
migratingmynahDate: Saturday, 21.01.2012, 08:21 | Message # 25
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Bloop?



No water...





Bye

Edited by migratingmynah - Saturday, 21.01.2012, 08:32
 
neutronium76Date: Saturday, 21.01.2012, 10:20 | Message # 26
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Quote (migratingmynah)
Bloop?


This is a custom made planet - not a procedural one. It is made by SpaceEngineer for the Alfa Century system. It can not be included in the contest wink . Same applies to all custom worlds like Battlestar galactica's 12 colonies (Capprica, Gemenon, tauron etc..). It must be a procedural planet on a catalogue or procedural star. Keep searching. Better tell your children and your grandchildren to continue as you get older cool 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
 
SpaceEngineerDate: Saturday, 21.01.2012, 13:09 | Message # 27
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Ooops, Bloop really has no water... Thanks for finding this bug smile

*





 
neutronium76Date: Saturday, 21.01.2012, 14:19 | Message # 28
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Capten's log

Day 24356, Galactic Sector 370, Subsector 7, StarSubsector 1666453, System 529

I came accross this system completely randomly while scanning stars at this sector.
When I saw the 4th planet I went like ''OMGod I found earth's twin ohyes ''
But when I checked the planet's parameters it was a sad .
But check it out - it does remind of our earth, especially the planet-moon distance, gravity and ratios:

Code

Place    "And if the atmo pressure was 22 times lower..."
{
  Body    "RS 8404-370-7-1666453-529 4"
  Parent    ""
  Pos  (1.05435599708089e-008, 3.782575292857645e-009, -4.018385537892199e-009)
  Rot  (0.07629915496309704, -0.8166759153207334, -0.1727563492878618, -0.5453202105806184)
  Date    "2013.02.09 22:08:20.28"
  Vel  1.1716536e-010
  Mode    1
}


I think I will make a documentary of my failed discoveries - with very minimalistic/sad music wink





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
 
migratingmynahDate: Monday, 23.01.2012, 16:44 | Message # 29
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Bye

Edited by migratingmynah - Monday, 23.01.2012, 16:45
 
ChrisDate: Monday, 23.01.2012, 17:41 | Message # 30
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Denmark
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I think we need to add some kind of weighting value to each parameter of the formula posted earlier in this thread.
So far the results i've been getting are rather disappointing.
The most habitable planet i've seen listed on this forum is RS 1137-1-5-26728-4 6. This planet scores around 40% and I didn't even bother taking into account the presence of a moon. The formula is rather punishing when you apply it on the property of the mass of a planet. The range of planets that should score higher results should be wider in my opinion.
Looking at the mass parameter alone, Mars scores 0,39.
That in itself is not unacceptable. But if you compare with the results you get when you apply the formula on the temperature property, almost all of the planets other users have posted on this forum, scores +0,90. Many of these planets would by extremely hot or cold for us.

We should define a range of acceptable values for each planetary property, and adjust the formula, perhabs using a weighting value, to have the fomula go off the chart, when you fill in values outside that defined range.





Core i7 920 @2.67 GHz, AsRock x58 Deluxe, 3x2GB DDR3 1066MHz RAM, GeForce GTX 560 Ti DCII 1024 Mb VRAM, Windows 7 Ultimate 64bit
 
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