Obs. : 2025-05-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.953e+08
Venus      7.867e+08
Earth      7.790e+08
Mars       7.985e+08
Jupiter    8.024e+08
Saturn     7.890e+08
Uranus     8.040e+08
Neptune    7.890e+08
Pluto      7.819e+08