Obs. : 2015-03-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.703e+11
Venus      4.800e+11
Earth      4.436e+11
Mars       4.751e+11
Jupiter    4.451e+11
Saturn     4.746e+11
Uranus     4.751e+11
Neptune    4.703e+11
Pluto      4.712e+11