Obs. : 2018-09-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.780e+11
Venus      3.808e+11
Earth      3.906e+11
Mars       3.853e+11
Jupiter    3.801e+11
Saturn     3.839e+11
Uranus     3.906e+11
Neptune    3.855e+11
Pluto      3.836e+11