# Comet Hyakutake
# radius is as described on
# http://www.psrd.hawaii.edu/Feb97/Bright.html
# rotaion period as described on
# http://www.lowell.edu/Research/Projects/hyakutake_research/hyaresearch.html
# Orbital elements are from
# http://www.jpl.nasa.gov/comet/hyakutake/ephemjpl8.html
#
"C1996 B2 Hyakutake (25Mar1996)" "Sol"
{
Class "comet"
Texture "asteroid.jpg"
Mesh "asteroid.cms"
Radius 1.3
RotationPeriod 6.23

EllipticalOrbit 
 { 
 Period 104768.3
 PericenterDistance 2.30223600e-01
 Eccentricity 9.9989641e-01
 Inclination 1.24923336e+02
 AscendingNode 1.88045288e+02 
 ArgOfPericenter 1.30174983e+02
 MeanAnomaly 0.0 
 Epoch 2.450204894016e+06 #1996 05 01.394016
 } 
 
}
"C1996 B2 Hyakutake (16June1996)" "Sol"
{
Class "comet"
Texture "asteroid.jpg"
Mesh "asteroid.cms"
Radius 1.3
RotationPeriod 6.23

EllipticalOrbit 
 { 
 Period 38181.14
 PericenterDistance 2.30192284e-01
 Eccentricity 9.9979704e-01 
 Inclination 1.24923979e+02
 AscendingNode 1.88045766e+02
 ArgOfPericenter 1.30164856e+02
 MeanAnomaly 0.0 
 Epoch 2.450204895751e+06 #1996 05 01.395751
 } 
 
}
"C1996 B2 Hyakutake (06jul1996)" "Sol"
{
Class "comet"
Texture "asteroid.jpg"
Mesh "asteroid.cms"
Radius 1.3
RotationPeriod 6.23

EllipticalOrbit 
 { 
 Period 39763.50 #? calc: p=(q/(1-e))**1.5
 PericenterDistance 2.30190159e-01
 Eccentricity 9.99802443e-01
 Inclination 1.249240377e+02
 AscendingNode 1.880463289e+02
 ArgOfPericenter 1.301652853e+02
 MeanAnomaly 0.0 
 Epoch 2.4502048961527e+06
 } 
 
}