Obs. : 2020-09-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.109e+08
Venus      6.389e+08
Earth      6.203e+08
Mars       6.255e+08
Jupiter    6.166e+08
Saturn     6.134e+08
Uranus     6.317e+08
Neptune    6.141e+08
Pluto      6.166e+08