Obs. : 2026-07-30
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.349e+08
Venus      7.449e+08
Earth      7.221e+08
Mars       6.235e+08
Jupiter    6.401e+08
Saturn     6.846e+08
Uranus     6.317e+08
Neptune    6.973e+08
Pluto      7.417e+08