Obs. : 2017-01-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.749e+11
Venus      3.731e+11
Earth      3.657e+11
Mars       3.731e+11
Jupiter    3.666e+11
Saturn     3.749e+11
Uranus     3.635e+11
Neptune    3.731e+11
Pluto      3.840e+11