Obs. : 2024-09-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.049e+09
Venus      1.029e+09
Earth      9.008e+08
Mars       1.002e+09
Jupiter    9.755e+08
Saturn     9.008e+08
Uranus     9.650e+08
Neptune    9.023e+08
Pluto      9.342e+08