Obs. : 2025-05-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.839e+08
Venus      7.866e+08
Earth      7.861e+08
Mars       8.090e+08
Jupiter    7.838e+08
Saturn     7.866e+08
Uranus     7.841e+08
Neptune    7.866e+08
Pluto      7.588e+08