Obs. : 2025-06-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.005e+08
Venus      7.949e+08
Earth      7.931e+08
Mars       8.042e+08
Jupiter    7.990e+08
Saturn     8.060e+08
Uranus     7.949e+08
Neptune    8.060e+08
Pluto      7.931e+08