# Comet Hyakutake # radius value 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 per JPL's Horizons ephemeris service # have clearly gone bonkers: the orbital periods are off by a factor of # 10 or more. *sigh* #2452575.500000000 = A.D. 2002-Oct-28 00:00:00.0000 (CT) # EC= 9.999407170553701E-01 QR= 2.337779413391891E-01 IN= 1.246225591888924E+02 # OM= 1.887609399998953E+02 W = 1.307272865438558E+02 Tp= 2.450205705598086E+06 # N = 3.980094923590241E-06 MA= 9.432006669030560E-03 TA= 1.673828158038815E+02 # A = 3.943426609404556E+03 AD= 7.886619440867773E+03 PR= 9.045010405813697E+07 # "C1996 B2 Hyakutake (Oct2002)" "Sol" { Class "comet" Texture "asteroid.jpg" Mesh "asteroid.cms" Radius 1.3 RotationPeriod 6.23 EllipticalOrbit { Period 247594.0 #a **1.5 PericenterDistance 2.337779413391891E-01 Eccentricity 9.999407170553701E-01 Inclination 1.246225591888924E+02 AscendingNode 1.887609399998953E+02 ArgOfPericenter 1.307272865438558E+02 MeanAnomaly 9.432006669030560E-03 Epoch 2452575.50 } } #2450168.500000000 = A.D. 1996-Mar-26 00:00:00.0000 (CT) # EC= 9.998910790472214E-01 QR= 2.302173666396128E-01 IN= 1.249231699522735E+02 # OM= 1.880452431050719E+02 W = 1.301760333983686E+02 Tp= 2.450204894010346E+06 # N = 1.014294565363253E-05 MA= 3.599996308575309E+02 TA=-1.234910142837707E+02 # A = 2.113618736948808E+03 AD= 4.227007256530976E+03 PR= 3.549264802292141E+07 # "C1996 B2 Hyakutake (closest 26Mar1996)" "Sol" { Class "comet" Texture "asteroid.jpg" Mesh "asteroid.cms" Radius 1.3 RotationPeriod 6.23 EllipticalOrbit { Period 97171.73 # a**1.5 PericenterDistance 2.302173666396128E-01 Eccentricity 9.998910790472214E-01 Inclination 1.249231699522735E+02 AscendingNode 1.880452431050719E+02 ArgOfPericenter 1.301760333983686E+02 MeanAnomaly 3.599996308575309E+02 Epoch 2450168.5 } }