Obs. : 2016-02-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.286e+11
Venus      4.286e+11
Earth      4.020e+11
Mars       3.966e+11
Jupiter    3.999e+11
Saturn     3.990e+11
Uranus     4.174e+11
Neptune    4.405e+11
Pluto      4.108e+11