Obs. : 2016-09-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.062e+11
Venus      3.898e+11
Earth      3.867e+11
Mars       3.971e+11
Jupiter    3.913e+11
Saturn     3.948e+11
Uranus     3.867e+11
Neptune    3.903e+11
Pluto      3.981e+11