Obs. : 2020-11-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.684e+08
Venus      6.676e+08
Earth      6.833e+08
Mars       6.808e+08
Jupiter    6.814e+08
Saturn     6.814e+08
Uranus     6.833e+08
Neptune    6.815e+08
Pluto      6.814e+08