Obs. : 2025-03-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.547e+08
Venus      8.547e+08
Earth      9.084e+08
Mars       8.393e+08
Jupiter    8.457e+08
Saturn     8.412e+08
Uranus     8.548e+08
Neptune    8.547e+08
Pluto      8.449e+08