Obs. : 2018-12-05
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.433e+11
Venus      3.423e+11
Earth      3.514e+11
Mars       3.574e+11
Jupiter    3.465e+11
Saturn     3.567e+11
Uranus     3.490e+11
Neptune    3.574e+11
Pluto      3.584e+11