Obs. : 2018-03-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.486e+11
Venus      3.497e+11
Earth      3.526e+11
Mars       3.498e+11
Jupiter    3.515e+11
Saturn     3.484e+11
Uranus     3.472e+11
Neptune    3.493e+11
Pluto      3.479e+11