Obs. : 2025-05-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.981e+08
Venus      7.928e+08
Earth      8.274e+08
Mars       8.009e+08
Jupiter    8.065e+08
Saturn     7.921e+08
Uranus     7.981e+08
Neptune    7.921e+08
Pluto      8.056e+08