Obs. : 2023-12-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.120e+08
Venus      9.204e+08
Earth      8.688e+08
Mars       8.724e+08
Jupiter    8.477e+08
Saturn     8.185e+08
Uranus     8.688e+08
Neptune    8.232e+08
Pluto      8.016e+08