Obs. : 2015-04-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.843e+11
Venus      4.730e+11
Earth      4.814e+11
Mars       4.792e+11
Jupiter    4.599e+11
Saturn     4.932e+11
Uranus     4.901e+11
Neptune    5.012e+11
Pluto      5.203e+11