jupiter.txt

一个关于星球运动的Java3d例子

name=木星
orbitdata=jupiter.orbit.txt
orbitperiod=4330.595
texture=images/jupiter.jpg
radius=69911
radiusscale=2000
orbitcolor=0.71,0.71,0.43
#EOF
 PHYSICAL DATA:
  Mass (10^24 kg)       =  1898.6         Density (g/cm^3)       =  1.326
  Equat. radius (1 bar) = 71492+-4 km     Polar radius (km)      = 66854+-10
  Volumetric mean radius= 69911+-6 km     Flattening             =  0.06487

  Rotation period       = 9h 55m 29.685s  Rot. rate(10^-4 rad/s) =  1.758533641
  m = w^2a^3/GM         =  0.089195       Hydrostatic flat., fh  =  0.06509
  Inferred rot. period  =  9.894+-0.02 hr ks = 3*J2/m            =  0.494
  Mom. of inert. I/MRo^2=  0.254          I/MRo^2 (upper bound)  =  0.267
  Rocky core mass (Mc/M)=  0.0261         Y factor (He/H ratio)  =  0.18+-0.04

  GM (km^3/s^2)         = 126,686,537     GM 1-sigma (km^3/s^2)   = +-100
  Equ. grav, ge (m/s^2) = 23.12+-0.01     Pol. grav, gp (m/s^2)  = 27.01+-0.01

  Geometric albedo      =  0.52           Visual magnitude V(1,0)= -9.40
  Vis. mag. (opposition)= -2.70           Obliquity to orbit     =  3.12 deg
  Sidereal orbit period = 11.856523 yr    Sidereal orbit period  = 4330.595 d
  Mean daily motion     = 0.0831294 deg/d Mean orbit velocity    = 13.0697 km/s