Obs. : 2018-01-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.606e+11
Venus      3.643e+11
Earth      3.555e+11
Mars       3.563e+11
Jupiter    3.563e+11
Saturn     3.606e+11
Uranus     3.533e+11
Neptune    3.618e+11
Pluto      3.635e+11