Obs. : 2019-11-24
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.136e+08
Venus      6.324e+08
Earth      6.208e+08
Mars       6.136e+08
Jupiter    6.324e+08
Saturn     6.340e+08
Uranus     6.208e+08
Neptune    6.272e+08
Pluto      6.342e+08