Obs. : 2016-10-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.978e+11
Venus      3.780e+11
Earth      4.043e+11
Mars       3.815e+11
Jupiter    3.921e+11
Saturn     3.755e+11
Uranus     4.040e+11
Neptune    3.974e+11
Pluto      3.866e+11