Obs. : 2026-07-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.966e+08
Venus      6.866e+08
Earth      8.105e+08
Mars       7.351e+08
Jupiter    6.813e+08
Saturn     8.338e+08
Uranus     7.698e+08
Neptune    8.331e+08
Pluto      7.954e+08