Obs. : 2026-04-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.330e+08
Venus      7.165e+08
Earth      7.719e+08
Mars       7.330e+08
Jupiter    7.176e+08
Saturn     7.221e+08
Uranus     7.158e+08
Neptune    7.221e+08
Pluto      7.746e+08