Obs. : 2025-06-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.098e+08
Venus      7.967e+08
Earth      8.121e+08
Mars       8.077e+08
Jupiter    8.111e+08
Saturn     8.050e+08
Uranus     8.025e+08
Neptune    8.050e+08
Pluto      8.143e+08