Obs. : 2018-03-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.488e+11
Venus      3.488e+11
Earth      3.491e+11
Mars       3.494e+11
Jupiter    3.498e+11
Saturn     3.494e+11
Uranus     3.507e+11
Neptune    3.542e+11
Pluto      3.492e+11