Obs. : 2026-01-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.673e+08
Venus      7.673e+08
Earth      7.578e+08
Mars       7.803e+08
Jupiter    7.785e+08
Saturn     8.213e+08
Uranus     8.310e+08
Neptune    8.213e+08
Pluto      7.870e+08