Obs. : 2026-01-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.281e+08
Venus      8.281e+08
Earth      8.370e+08
Mars       8.220e+08
Jupiter    8.859e+08
Saturn     8.735e+08
Uranus     9.070e+08
Neptune    8.735e+08
Pluto      8.220e+08