Obs. : 2025-08-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.833e+08
Venus      8.002e+08
Earth      9.324e+08
Mars       8.357e+08
Jupiter    8.216e+08
Saturn     9.248e+08
Uranus     8.855e+08
Neptune    9.248e+08
Pluto      9.189e+08