Obs. : 2026-06-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.363e+08
Venus      8.483e+08
Earth      7.795e+08
Mars       7.777e+08
Jupiter    8.483e+08
Saturn     7.528e+08
Uranus     7.917e+08
Neptune    7.528e+08
Pluto      7.697e+08