Obs. : 2026-05-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.864e+08
Venus      7.684e+08
Earth      7.063e+08
Mars       7.867e+08
Jupiter    7.584e+08
Saturn     7.799e+08
Uranus     7.833e+08
Neptune    7.614e+08
Pluto      7.202e+08