Obs. : 2020-04-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.379e+08
Venus      6.215e+08
Earth      6.162e+08
Mars       6.222e+08
Jupiter    6.222e+08
Saturn     6.222e+08
Uranus     6.339e+08
Neptune    6.317e+08
Pluto      6.246e+08