Obs. : 2020-01-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.280e+08
Venus      6.393e+08
Earth      6.217e+08
Mars       6.095e+08
Jupiter    6.280e+08
Saturn     6.388e+08
Uranus     6.192e+08
Neptune    6.330e+08
Pluto      6.388e+08