Obs. : 2020-03-08
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.371e+08
Venus      5.989e+08
Earth      6.192e+08
Mars       6.223e+08
Jupiter    6.250e+08
Saturn     6.250e+08
Uranus     5.989e+08
Neptune    6.395e+08
Pluto      6.250e+08