Obs. : 2025-12-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.543e+08
Venus      8.574e+08
Earth      7.979e+08
Mars       8.638e+08
Jupiter    7.700e+08
Saturn     9.045e+08
Uranus     8.543e+08
Neptune    9.045e+08
Pluto      8.682e+08