Obs. : 2020-07-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.084e+08
Venus      6.249e+08
Earth      6.286e+08
Mars       6.124e+08
Jupiter    6.250e+08
Saturn     6.250e+08
Uranus     6.173e+08
Neptune    6.121e+08
Pluto      6.250e+08