Obs. : 2020-06-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.332e+08
Venus      6.330e+08
Earth      6.300e+08
Mars       6.073e+08
Jupiter    6.157e+08
Saturn     6.157e+08
Uranus     6.185e+08
Neptune    6.073e+08
Pluto      6.181e+08