Obs. : 2026-07-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.673e+08
Venus      7.094e+08
Earth      7.200e+08
Mars       7.992e+08
Jupiter    7.400e+08
Saturn     7.840e+08
Uranus     8.093e+08
Neptune    7.589e+08
Pluto      7.070e+08