Obs. : 2026-02-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.981e+08
Venus      7.981e+08
Earth      8.172e+08
Mars       8.106e+08
Jupiter    8.137e+08
Saturn     7.903e+08
Uranus     7.998e+08
Neptune    7.903e+08
Pluto      8.084e+08