Obs. : 2015-08-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.109e+11
Venus      4.209e+11
Earth      4.484e+11
Mars       4.055e+11
Jupiter    4.209e+11
Saturn     4.488e+11
Uranus     4.409e+11
Neptune    4.491e+11
Pluto      4.484e+11