Obs. : 2019-11-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.156e+08
Venus      6.335e+08
Earth      6.228e+08
Mars       6.156e+08
Jupiter    6.335e+08
Saturn     6.383e+08
Uranus     6.227e+08
Neptune    6.318e+08
Pluto      6.381e+08