Obs. : 2019-12-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    5.982e+08
Venus      6.223e+08
Earth      6.080e+08
Mars       5.945e+08
Jupiter    6.158e+08
Saturn     6.194e+08
Uranus     6.069e+08
Neptune    6.174e+08
Pluto      6.223e+08