Obs. : 2016-02-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.282e+11
Venus      4.256e+11
Earth      4.618e+11
Mars       4.313e+11
Jupiter    4.611e+11
Saturn     4.266e+11
Uranus     4.450e+11
Neptune    4.397e+11
Pluto      4.256e+11