Obs. : 2025-01-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.677e+08
Venus      8.485e+08
Earth      8.432e+08
Mars       8.315e+08
Jupiter    8.007e+08
Saturn     8.485e+08
Uranus     8.200e+08
Neptune    8.462e+08
Pluto      8.650e+08