Real-time 3D visualization of space
https://celestiaproject.space/forum/
https://celestiaproject.space/forum/viewtopic.php?f=2&t=8144
PlutonianEmpire wrote:looking in the extrasolar.ssc at one of the planets in gliese 876, and i was wondering, how does mass "work" in celestia?
Code: Select all
"d" "Gliese 876" # IL Aqr
{
Texture "venuslike.*"
[b]Mass 7 # M.sin(i) = 7 earths[/b]
Radius 12600
InfoURL "http://vo.obspm.fr/exoplanetes/encyclo/star.php?st=Gliese+876"
EllipticalOrbit {
Period 0.0053
SemiMajorAxis 0.20806
MeanLongitude 45
}
# likely to be in captured synchronous rotation
}
AltSurface "limit of knowledge" "Gliese 876/d"
{
Texture "extrasolar-lok.*"
}
"c" "Gliese 876" # IL Aqr
{
Texture "jupiterlike.*"
[b]Mass 180 # M.sin(i) = 0.56 jupiters[/b]
Radius 56000
InfoURL "http://vo.obspm.fr/exoplanetes/encyclo/star.php?st=Gliese+876"
EllipticalOrbit {
Period 0.0824
SemiMajorAxis 0.13
Eccentricity 0.27
ArgOfPericenter 39
MeanAnomaly 103
}
# likely to be in captured synchronous rotation
}
AltSurface "limit of knowledge" "Gliese 876/c"
{
Texture "extrasolar-lok.*"
}
"b" "Gliese 876" # IL Aqr
{
Texture "jupiterlike.*"
[b]Mass 620 # M.sin(i) = 1.935 jupiters[/b]
Radius 70000
Oblateness 0.03
InfoURL "http://vo.obspm.fr/exoplanetes/encyclo/star.php?st=Gliese+876"
EllipticalOrbit {
Period 0.1668
SemiMajorAxis 0.20783
Eccentricity 0.0249
ArgOfPericenter 245
MeanAnomaly 220
}
RotationPeriod 11 # tidal slowing significant
}
AltSurface "limit of knowledge" "Gliese 876/b"
{
Texture "extrasolar-lok.*"
}
You can specify a mass in the .ssc file (for reference purposes), but Celestia doesn't use it for anything.PlutonianEmpire wrote:then what is this?
PlutonianEmpire wrote:I also noticed that the newly discovered terrestrial world ("d"), is the same distance as "b", yet orbits in a single day, instead of a month or 2. :?
