A strange orbital configuration at Nu Octantis, from
Ramm et al. (2016). Probably it would be included in the list of confirmed planets by now were it not for the close binary star. The planet would not be stable in a prograde orbit.
stc file:
Code:
Barycenter 107089 "NU Oct"
{
RA<deg> 325.369374
Dec<deg> -77.390043
Distance<pc> 22.10
}
"NU Oct A:HIP 107089 A:HD 205478 A:CCDM J21415-7723A"
{
AppMag 3.743
Radius<rS> 5.81
Temperature 4860
SpectralType "K0III"
OrbitBarycenter "NU Oct"
EllipticalOrbit {
Period<d> 1051.05
SemiMajorAxis<AU> 0.70102
Eccentricity 0.2368
ArgOfPericenter<deg> 272.9
Inclination<deg> 97.8
AscendingNode<deg> 232.7
MeanAnomaly<deg> 339.3
Epoch 2452068.0607
}
}
"NU Oct B:HIP 107089 B:HD 205478 B:CCDM J21415-7723B"
{
AbsMag 9.5 # guess based on mass
SpectralType "M1" # guess based on mass
OrbitBarycenter "NU Oct"
EllipticalOrbit {
Period<d> 1051.05
SemiMajorAxis<AU> 1.92857
Eccentricity 0.2368
ArgOfPericenter<deg> 92.9
Inclination<deg> 97.8
AscendingNode<deg> 232.7
MeanAnomaly<deg> 339.3
Epoch 2452068.0607
}
}
ssc file:
Code:
"b" "NU Oct A"
{
Radius<rJ> 1 # guess
Mass 669
Texture "exo-class3.*" # guess
EllipticalOrbit
{
Period<d> 412.942
SemiMajorAxis<AU> 1.27261
Eccentricity 0.12
ArgOfPericenter<deg> 352.0
Inclination<deg> 82.9
AscendingNode<deg> 24.9
MeanAnomaly<deg> 315.0
Epoch 2452068.0607
}
UniformRotation
{
Period<h> 10 # guess
Inclination<deg> 82.9 # to match orbit
AscendingNode<deg> 24.9 # to match orbit
}
}
Login
Register
FAQ
Search
