Obs. : 2016-09-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.002e+11
Venus      4.076e+11
Earth      3.983e+11
Mars       4.038e+11
Jupiter    4.026e+11
Saturn     4.038e+11
Uranus     3.983e+11
Neptune    3.904e+11
Pluto      3.984e+11