Making a triple rocky planet system

[kikinho]

I'm creating a new solar system in a star called Jeynerk, which has a metallicity much higher than Sun.
I'm trying to do a triple planet system in which all of the three planets have about the same mass and density.

Here the code I did:

Note that the first Haragntaphadsehderish is the orbit around the star. I didn't put it has an invisible object because I want to appear the orbit of this planet in my addon.

"Haragntaphadsehderish" "Jeynerk" {
Mesh "planet.3ds"
Class "Planet"
Radius 1000
EllipticalOrbit {
Period 0.60
SemiMajorAxis 0.60
Eccentricity 0.056
Inclination 0.723
}
}

"Haragntaphadsehderish" "Jeynerk/Haragntaphadsehderish"
{
Texture "Haragntaphadsehderish.*"
NightTexture "Haragntaphadsehderish-night.*"
SpecularTexture "Haragntaphadsehderish-spec.*"
SpecularColor [ 1 1 1 ]
SpecularPower 100
HazeColor [ 0.5 0.5 0.5 ]
HazeDensity 0.5
Color [ 0.5 0.5 0.5 ]
Radius 7354
Oblateness 0.005
Mass 9.6E+24
Atmosphere {
Height 200
Lower [ 0.5 0.5 0.5 ]
Upper [ 0 0 0.3 ]
Sky [ 0.5 0.7 1 ]
Sunset [ 0.7 0.4 0.1 ]
CloudHeight 12
CloudSpeed 100
CloudMap "Earthlike1-clouds.*"
}
EllipticalOrbit {
Period 2.5
SemiMajorAxis 0.001
Eccentricity 0.012
Inclination 0.000
}
RotationPeriod 60
Obliquity 15
Albedo 0.4
}

"Odislownackmein" "Jeynerk/Haragntaphadsehderish"
{
Texture "Odislownackmein.*"
NightTexture "Odislownackmein-night.*"
SpecularTexture "Odislownackmein-spec.*"
SpecularColor [ 1 1 1 ]
SpecularPower 100
HazeColor [ 0.5 0.5 0.5 ]
HazeDensity 0.5
Color [ 0.5 0.5 0.5 ]
Radius 7336
Oblateness 0.001
Mass 9.4E+24
Atmosphere {
Height 200
Lower [ 0.5 0.5 0.5 ]
Upper [ 0 0 0.3 ]
Sky [ 0.5 0.7 1 ]
Sunset [ 0.7 0.4 0.1 ]
CloudHeight 12
CloudSpeed 100
CloudMap "Earthlike1-clouds.*"
}
EllipticalOrbit {
Period 2.5
SemiMajorAxis 42817
Eccentricity 0.024
Inclination 0.000
}
RotationPeriod 60
Obliquity -16
Albedo 0.4
}

"Tildrernoswickdy" "Jeynerk/Haragntaphadsehderish"
{
Texture "Tildrernoswickdy.*"
NightTexture "Tildrernoswickdy-night.*"
SpecularTexture "Tildrernoswickdy-spec.*"
SpecularColor [ 1 1 1 ]
SpecularPower 100
HazeColor [ 0.5 0.5 0.5 ]
HazeDensity 0.5
Color [ 0.5 0.5 0.5 ]
Radius 7345
Oblateness 0.003
Mass 9.5E+24
Atmosphere {
Height 200
Lower [ 0.5 0.5 0.5 ]
Upper [ 0 0 0.3 ]
Sky [ 0.5 0.7 1 ]
Sunset [ 0.7 0.4 0.1 ]
CloudHeight 12
CloudSpeed 100
CloudMap "Earthlike1-clouds.*"
}
EllipticalOrbit {
Period 2.5
SemiMajorAxis 42834
Eccentricity 0.036
Inclination 0.000
MeanLongitude 180
}
RotationPeriod 60
Obliquity 14
Albedo 0.4
}

Note that the three planets tide locked each other because of the same mass and near distances. This system is far enough from it's star to it's planets have it's own primordial rotation, but because such near distances, they locked each other in a period of 60 hours.

What I want to know is: These codes are realistic? Is it possible to exist a triple system in which all the planets have about same mass? And with different masses? Is this system I did possible to exist?

[Malenfant]

Well first, please use the [ code ] tag to list your code, rather than colouring it yourself. I couldn't see the writing because you coloured it yellow which is almost invisible on the grey background (remember not everyone uses the 'solaris' forum theme, many of us use the normal 'silver' theme).

Second, I know you like odd names but these are just totally unpronouncable! The more complicated you make them, the more likely you are to make a mistake when you're transcribing them within the code (unless you just copy/paste them of course). Personally I'd just call these "Hara", "Odis" and "Tild", nobody is ever going to use such long names as you have.

Code: Select all

"Haragntaphadsehderish" "Jeynerk" {
Mesh "planet.3ds"
Class "Planet"
Radius 1000
EllipticalOrbit {
Period 0.60
SemiMajorAxis 0.60
Eccentricity 0.056
Inclination 0.723
}
}

"Haragntaphadsehderish" "Jeynerk/Haragntaphadsehderish"
{
Texture "Haragntaphadsehderish.*"
NightTexture "Haragntaphadsehderish-night.*"
SpecularTexture "Haragntaphadsehderish-spec.*"
SpecularColor [ 1 1 1 ]
SpecularPower 100
HazeColor [ 0.5 0.5 0.5 ]
HazeDensity 0.5
Color [ 0.5 0.5 0.5 ]
Radius 7354
Oblateness 0.005
Mass 9.6E+24
Atmosphere {
Height 200
Lower [ 0.5 0.5 0.5 ]
Upper [ 0 0 0.3 ]
Sky [ 0.5 0.7 1 ]
Sunset [ 0.7 0.4 0.1 ]
CloudHeight 12
CloudSpeed 100
CloudMap "Earthlike1-clouds.*"
}
EllipticalOrbit {
Period 2.5
SemiMajorAxis 0.001
Eccentricity 0.012
Inclination 0.000
}
RotationPeriod 60
Obliquity 15
Albedo 0.4
}

"Odislownackmein" "Jeynerk/Haragntaphadsehderish"
{
Texture "Odislownackmein.*"
NightTexture "Odislownackmein-night.*"
SpecularTexture "Odislownackmein-spec.*"
SpecularColor [ 1 1 1 ]
SpecularPower 100
HazeColor [ 0.5 0.5 0.5 ]
HazeDensity 0.5
Color [ 0.5 0.5 0.5 ]
Radius 7336
Oblateness 0.001
Mass 9.4E+24
Atmosphere {
Height 200
Lower [ 0.5 0.5 0.5 ]
Upper [ 0 0 0.3 ]
Sky [ 0.5 0.7 1 ]
Sunset [ 0.7 0.4 0.1 ]
CloudHeight 12
CloudSpeed 100
CloudMap "Earthlike1-clouds.*"
}
EllipticalOrbit {
Period 2.5
SemiMajorAxis 42817
Eccentricity 0.024
Inclination 0.000
}
RotationPeriod 60
Obliquity -16
Albedo 0.4
}

"Tildrernoswickdy" "Jeynerk/Haragntaphadsehderish"
{
Texture "Tildrernoswickdy.*"
NightTexture "Tildrernoswickdy-night.*"
SpecularTexture "Tildrernoswickdy-spec.*"
SpecularColor [ 1 1 1 ]
SpecularPower 100
HazeColor [ 0.5 0.5 0.5 ]
HazeDensity 0.5
Color [ 0.5 0.5 0.5 ]
Radius 7345
Oblateness 0.003
Mass 9.5E+24
Atmosphere {
Height 200
Lower [ 0.5 0.5 0.5 ]
Upper [ 0 0 0.3 ]
Sky [ 0.5 0.7 1 ]
Sunset [ 0.7 0.4 0.1 ]
CloudHeight 12
CloudSpeed 100
CloudMap "Earthlike1-clouds.*"
}
EllipticalOrbit {
Period 2.5
SemiMajorAxis 42834
Eccentricity 0.036
Inclination 0.000
MeanLongitude 180
}
RotationPeriod 60
Obliquity 14
Albedo 0.4
}


[Smacklug]

Oh god, Odislownackmein? That's going a little overboard.

[Malenfant]

Also, if it's three planets orbiting a central point (and the three planets are equally spaced around their orbit) then they can't be tidally locked to eachother - you can't be locked to two things that are 120 degrees apart relative to you at the same time!

[kikinho]

These names are from an alien civilization. They are big and complicated for us because we are not adapted, only to smaller names. Some of them are pronunciable, others not, because we don't have the adaquated organ to pronunce it. I don't like to use small names because other people can make a similar name, and I also don't like to put names that already exist in the world. Also because I'm very creative.

Now, about the planets: This mean that each planet have it's own rotation period, right? Odislownackmein is 180?? distant to Tildrernoswickdy.
But the central planet shouldn't be in the center, I think that the best is to make an invisible center of gravity, and each planet be distant in the same angle to the other.

Could someone make to me a more correct way to make triple planet system? I don't know the one I created is correct, I think the strong gravity relation between each planet should disrupt the central planet to a more distant point, where the others are. In my opinion, each planet should be distant 120?? each other, none of them being in the center of gravity. I forgot something or there are something wrong?

All I want is to make a realistic triple planet system.

[kikinho]

I've changed the code. Now I think this time it's more realistic than before. What's your opinion about this system? Have mistakes? I want to create a very interesting and complete system, but to do this I'll need some help. I'm thinking to add a topic about Jeynerk in add-ons forum, but only when I complete a big part of the system.

Code: Select all

"Haragntaphadsehderish" "Jeynerk" {
Mesh "planet.3ds"
Class      "Planet"
Color [ 0 0 0 ]
Radius 1000
EllipticalOrbit {
Period      0.60
SemiMajorAxis   0.60
Eccentricity 0.010
Inclination 0.723
}
}

"Haragntaphadsehderish"  "Jeynerk/Haragntaphadsehderish"
{
Texture "Haragntaphadsehderish.*"
NightTexture "Haragntaphadsehderish-night.*"
SpecularTexture "Haragntaphadsehderish-spec.*"
SpecularColor [ 1 1 1 ]
SpecularPower 100
HazeColor [ 0.5 0.5 0.5 ]
HazeDensity 0.5
Color [ 0.5 0.5 0.5 ]
Radius 7354
Oblateness 0.005
Mass 9.6E+24
Atmosphere {
Height 200
Lower [ 0.5 0.5 0.5 ]
Upper [ 0 0 0.3 ]
Sky [ 0.5 0.7 1 ]
Sunset [ 0.7 0.4 0.1 ]
CloudHeight 12
CloudSpeed 100
CloudMap "Earthlike1-clouds.*"
}
EllipticalOrbit {
Period            2.5
SemiMajorAxis   50000
Eccentricity      0.000
Inclination        0.000
}
RotationPeriod     14
Obliquity              15
Albedo               0.4
}

"Odislownackmein"  "Jeynerk/Haragntaphadsehderish"
{
Texture "Odislownackmein.*"
NightTexture "Odislownackmein-night.*"
SpecularTexture "Odislownackmein-spec.*"
SpecularColor [ 1 1 1 ]
SpecularPower 100
HazeColor [ 0.5 0.5 0.5 ]
HazeDensity 0.5
Color [ 0.5 0.5 0.5 ]
Radius 7336
Oblateness 0.001
Mass 9.4E+24
Atmosphere {
Height 200
Lower [ 0.5 0.5 0.5 ]
Upper [ 0 0 0.3 ]
Sky [ 0.5 0.7 1 ]
Sunset [ 0.7 0.4 0.1 ]
CloudHeight 12
CloudSpeed 100
CloudMap "Earthlike1-clouds.*"
}
EllipticalOrbit {
Period            2.5
SemiMajorAxis    50000
Eccentricity      0.000
Inclination       0.000
MeanLongitude  120
}
RotationPeriod     18
Obliquity            -16
Albedo               0.4
}

"Tildrernoswickdy"  "Jeynerk/Haragntaphadsehderish"
{
Texture "Tildrernoswickdy.*"
NightTexture "Tildrernoswickdy-night.*"
SpecularTexture "Tildrernoswickdy-spec.*"
SpecularColor [ 1 1 1 ]
SpecularPower 100
HazeColor [ 0.5 0.5 0.5 ]
HazeDensity 0.5
Color [ 0.5 0.5 0.5 ]
Radius 7345
Oblateness 0.003
Mass 9.5E+24
Atmosphere {
Height 200
Lower [ 0.5 0.5 0.5 ]
Upper [ 0 0 0.3 ]
Sky [ 0.5 0.7 1 ]
Sunset [ 0.7 0.4 0.1 ]
CloudHeight 12
CloudSpeed 100
CloudMap "Earthlike1-clouds.*"
}
EllipticalOrbit {
Period            2.5
SemiMajorAxis   50000
Eccentricity      0.000
Inclination        0.000
MeanLongitude  240
}
RotationPeriod    16
Obliquity             14
Albedo               0.4
}

[Malenfant]

These names are from an alien civilization. They are big and complicated for us because we are not adapted, only to smaller names. Some of them are pronunciable, others not, because we don't have the adaquated organ to pronunce it. I don't like to use small names because other people can make a similar name, and I also don't like to put names that already exist in the world. Also because I'm very creative.

I realised that you probably wanted alien sounding names, but these are ridiculous when it comes to entering them into Celestia. Nobody is going to type all that out to go to those planets - I'd guess that most people would just type 'hara' and let the console complete it for them. You've got to balance originality with practicality here.


As to whether your system is realistic - it's not, it would have to be an artificial arrangement. If you want three planets spaced apart equally over a single orbit around a star (ie 120 degrees apart, in a triangle) then that's a "Rosette System", though I think that'd be unstable since the planets won't be in eachothers' lagrange points. If you want three planets orbiting a single point that is itself orbiting a star, then that is definitely unstable and would require some magic ultratech to maintain. If you want three planets in a line (eg moon, planet, and another moon opposite the first moon) then that would also be artificial and probably unstable (the L3 point opposite the first moon is unstable).

But the central planet shouldn't be in the center, I think that the best is to make an invisible center of gravity, and each planet be distant in the same angle to the other.

That won't be realistic, but then none of these configurations are.

Could someone make to me a more correct way to make triple planet system? I don't know the one I created is correct, I think the strong gravity relation between each planet should disrupt the central planet to a more distant point, where the others are. In my opinion, each planet should be distant 120?? each other, none of them being in the center of gravity. I forgot something or there are something wrong?

All I want is to make a realistic triple planet system.

The only vaguely realistic ways to have a triple system are to either have two large moons orbiting a single body, or to have the two other bodies in the L4 and L5 points of the main planet which is orbiting the star. In the latter case, you'd have the other two planets located 60?° ahead of and behind the main planet in its orbit, at the same distance from the star. Even these points aren't hugely stable though (you can't form a planet there anyway, though asteroids can orbit those points - that's where the trojan asteroids of Jupiter are), so you'd probably need some artificial way to move those worlds there and keep them stable.

[kikinho]

So if a triple system is improbable to form naturally, I'll make at least binary systems, because at least it already exists ( Earth-Moon, Pluto-Charon ), so Jeynerk will have at least many binary planets, because of the high concentration of the material that formed around the star.
Part of the material came from rogue bodies.
One more question: All binary planets with about the same mass that are near lock it's own rotation or not?