Obs. : 2020-03-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.325e+08
Venus      6.038e+08
Earth      6.214e+08
Mars       6.252e+08
Jupiter    6.252e+08
Saturn     6.296e+08
Uranus     6.104e+08
Neptune    6.345e+08
Pluto      6.252e+08