Obs. : 2017-07-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.591e+11
Venus      3.567e+11
Earth      3.618e+11
Mars       3.558e+11
Jupiter    3.736e+11
Saturn     3.618e+11
Uranus     3.494e+11
Neptune    3.463e+11
Pluto      3.544e+11