Obs. : 2025-01-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.626e+08
Venus      9.292e+08
Earth      9.670e+08
Mars       9.435e+08
Jupiter    8.859e+08
Saturn     9.292e+08
Uranus     8.720e+08
Neptune    9.292e+08
Pluto      9.479e+08