Obs. : 2026-05-01
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.862e+08
Venus      7.786e+08
Earth      7.891e+08
Mars       7.972e+08
Jupiter    7.679e+08
Saturn     8.184e+08
Uranus     7.786e+08
Neptune    8.184e+08
Pluto      8.572e+08