Obs. : 2026-10-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.709e+08
Venus      7.750e+08
Earth      7.556e+08
Mars       8.107e+08
Jupiter    8.107e+08
Saturn     7.556e+08
Uranus     7.902e+08
Neptune    7.556e+08
Pluto      7.351e+08