Obs. : 2020-11-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.755e+08
Venus      6.696e+08
Earth      6.676e+08
Mars       6.699e+08
Jupiter    7.162e+08
Saturn     7.078e+08
Uranus     6.676e+08
Neptune    6.785e+08
Pluto      7.162e+08