Obs. : 2025-05-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.034e+08
Venus      7.974e+08
Earth      7.855e+08
Mars       7.986e+08
Jupiter    8.107e+08
Saturn     7.978e+08
Uranus     8.138e+08
Neptune    7.978e+08
Pluto      7.914e+08