Obs. : 2023-01-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.550e+08
Venus      8.474e+08
Earth      8.724e+08
Mars       8.631e+08
Jupiter    8.129e+08
Saturn     8.379e+08
Uranus     8.453e+08
Neptune    8.168e+08
Pluto      8.474e+08