Obs. : 2026-01-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.392e+08
Venus      8.111e+08
Earth      8.190e+08
Mars       8.392e+08
Jupiter    7.903e+08
Saturn     7.461e+08
Uranus     7.348e+08
Neptune    7.396e+08
Pluto      8.111e+08