mars.txt

一个关于星球运动的Java3d例子

name=火星
orbitdata=mars.orbit.txt
orbitperiod=686.98
texture=images/mars.jpg
radius=3389.9
radiusscale=2000
orbitcolor=0.55,0.55,0.27
#EOF
 GEOPHYSICAL DATA:
  Mean radius (km)      = 3389.9(2+-4)    Density (g cm^-3)     =  3.933(5+-4)
  Mass (10^23 kg )      =    6.4185       Flattening, f         =  1/154.409
  Volume (x10^10 km^3)  =   16.318        Semi-major axis       =  3397+-4
  Sidereal rot. period  =   24.622962 hr  Rot. Rate (x10^5 s)   =  7.088218
  Mean solar day        =    1.0274907 d  Polar gravity ms^-2   =  3.758
  Mom. of Inertia       =    0.366        Equ. gravity  ms^-2   =  3.690
  Core radius (km)      =  ~1700          Potential Love # k2   =  0.153 +-.017

  Grav spectral fact u  =   14 (x10^5)    Topo. spectral fact t = 96 (x10^5)
  Fig. offset (Rcf-Rcm) = 2.50+-0.07 km   Offset (lat./long.)   = 62d / 88d
  GM (km^3 s^-2)        = 42828.3         Equatorial Radius, Re = 3394.0 km
  GM 1-sigma (km^3 s^-2)= +- 0.1          Mass ratio (sun/Mars) = 3098708+-9

  Atmos. pressure (bar) =    0.0056       Max. angular diam.    =  17.9"
  Mean Temperature (K)  =  210            Visual mag. V(1,0)    =  -1.52
  Geometric albedo      =    0.150        Obliquity to orbit    =  25.19 deg
  Mean sidereal orb per =    1.88081578 y Orbit vel.  km/s      =  24.1309
  Mean sidereal orb per =  686.98 d       Escape vel. km/s      =   5.027