Obs. : 2018-09-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.099e+11
Venus      4.107e+11
Earth      4.188e+11
Mars       4.149e+11
Jupiter    4.132e+11
Saturn     4.130e+11
Uranus     4.240e+11
Neptune    4.175e+11
Pluto      4.102e+11