Obs. : 2020-09-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.112e+08
Venus      6.470e+08
Earth      6.441e+08
Mars       6.441e+08
Jupiter    6.227e+08
Saturn     6.274e+08
Uranus     6.454e+08
Neptune    6.370e+08
Pluto      6.274e+08