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PostPosted: Wed, 17-08-16, 21:10 GMT 
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Joined: Mon, 07-01-08, 13:30 GMT
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Location: Switzerland
Celestia representation for the binary star+planet in Ortiz et al. (arXiv:1608.00963 [astro-ph.EP]). Note this planet is supplied in extrasolar.ssc for a single star representation, so the relevant sections must be commented out of that file first otherwise you'll end up with one version of the planet orbiting the barycentre, the other orbiting the primary star.

The secondary could be a main sequence star or a white dwarf, here I've gone with the main sequence star version. I've used the orbital inclination and ascending node given in the figure 8. I estimated the stellar properties for star B using isochrones and the radius of the planet is estimated using forecaster.

Version for Celestia with units support/Celestia.Sci:

.stc file
Code:
Replace Barycenter 36616 "HIP 36616 AB:HD 59686 AB"
{
    RA<deg> 112.951650
    Dec<deg> 17.086047
    Distance<pc> 96.90
}

"HIP 36616 A:HD 59686 A"
{
    AppMag 5.45
    Radius<rS> 13.2
    Temperature 4658
    SpectralType "K2III"

    OrbitBarycenter "HIP 36616 AB"

    EllipticalOrbit {
        Period<d> 11680
        SemiMajorAxis<AU> 3.6917
        Eccentricity 0.729
        ArgOfPericenter<deg> 284.07
        Inclination<deg> 55.56
        AscendingNode<deg> 235.09
        MeanAnomaly<deg> 259
        Epoch 2452621.84
    }
}

"HIP 36616 B:HD 59686 B"
{
    AbsMag 7.88 # from isochrones
    Temperature 4250 # from isochrones
    SpectralType "K6V" # closest Celestia type that matches temperature

    OrbitBarycenter "HIP 36616 AB"

    EllipticalOrbit {
        Period<d> 11680
        SemiMajorAxis<AU> 10.1473
        Eccentricity 0.729
        ArgOfPericenter<deg> 104.07
        Inclination<deg> 55.56
        AscendingNode<deg> 235.09
        MeanAnomaly<deg> 259
        Epoch 2452621.84
    }
}


.ssc file
Code:
"b" "HD 59686 A"
{
    Radius<rJ> 1.11 # from Forecaster
    Mass 2871
    Texture "exo-class3.*"

    EllipticalOrbit {
        Period<d> 299.36
        SemiMajorAxis<AU> 1.0860
        Eccentricity 0.05
        ArgOfPericenter<deg> 255.67
        Inclination<deg> 55.56 # to match stellar binary
        AscendingNode<deg> 235.09 # to match stellar binary
        MeanAnomaly<deg> 301
        Epoch 2452621.84
    }
   
    UniformRotation {
        Period<h> 10
        Inclination<deg> 55.56 # to match orbit
        AscendingNode<deg> 235.09 # to match orbit
    }
}


Version for Celestia without units support

.stc file
Code:
"HIP 36616 A:HD 59686 A"
{
    AppMag 5.45
    Radius 9187200
    SpectralType "K2III"

    OrbitBarycenter "HIP 36616 AB"

    EllipticalOrbit {
        Period 31.978
        SemiMajorAxis 3.6917
        Eccentricity 0.729
        ArgOfPericenter 284.07
        Inclination 55.56
        AscendingNode 235.09
        MeanAnomaly 259
        Epoch 2452621.84
    }
}

"HIP 36616 B:HD 59686 B"
{
    AbsMag 7.88 # from isochrones
    SpectralType "K6V" # closest Celestia type that matches isochrones temperature

    OrbitBarycenter "HIP 36616 AB"

    EllipticalOrbit {
        Period 31.978
        SemiMajorAxis 10.1473
        Eccentricity 0.729
        ArgOfPericenter 104.07
        Inclination 55.56
        AscendingNode 235.09
        MeanAnomaly 259
        Epoch 2452621.84
    }
}

.ssc file
Code:
"b" "HD 59686 A"
{
    Radius 79356 # from Forecaster
    Mass 2871
    Texture "exo-class3.*"

    EllipticalOrbit {
        Period 0.81960
        SemiMajorAxis 1.0860
        Eccentricity 0.05
        ArgOfPericenter 255.67
        Inclination 55.56 # to match stellar binary
        AscendingNode 235.09 # to match stellar binary
        MeanAnomaly 301
        Epoch 2452621.84
    }
   
    UniformRotation {
        Period 10
        Inclination 55.56 # to match orbit
        AscendingNode 235.09 # to match orbit
    }
}


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