Obs. : 2014-08-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.013e+11
Venus      3.805e+11
Earth      4.122e+11
Mars       4.407e+11
Jupiter    3.805e+11
Saturn     4.407e+11
Uranus     3.907e+11
Neptune    4.071e+11
Pluto      4.246e+11