Obs. : 2020-08-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.227e+08
Venus      6.556e+08
Earth      6.361e+08
Mars       6.383e+08
Jupiter    6.302e+08
Saturn     6.244e+08
Uranus     6.454e+08
Neptune    6.361e+08
Pluto      6.302e+08