Obs. : 2020-10-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.144e+08
Venus      6.373e+08
Earth      6.367e+08
Mars       6.367e+08
Jupiter    6.350e+08
Saturn     6.350e+08
Uranus     6.376e+08
Neptune    6.354e+08
Pluto      6.350e+08