Obs. : 2013-02-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.063e+11
Venus      4.017e+11
Earth      4.200e+11
Mars       4.090e+11
Jupiter    4.228e+11
Saturn     3.902e+11
Uranus     4.196e+11
Neptune    4.090e+11
Pluto      3.958e+11