Obs. : 2026-03-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.605e+08
Venus      7.499e+08
Earth      7.499e+08
Mars       7.605e+08
Jupiter    7.489e+08
Saturn     7.529e+08
Uranus     7.592e+08
Neptune    7.529e+08
Pluto      7.908e+08