Obs. : 2013-05-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.369e+11
Venus      4.369e+11
Earth      4.471e+11
Mars       4.404e+11
Jupiter    4.378e+11
Saturn     4.407e+11
Uranus     4.424e+11
Neptune    4.314e+11
Pluto      4.435e+11