Obs. : 2025-03-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.784e+08
Venus      8.784e+08
Earth      8.209e+08
Mars       8.454e+08
Jupiter    8.536e+08
Saturn     8.972e+08
Uranus     8.555e+08
Neptune    8.972e+08
Pluto      9.308e+08