Obs. : 2024-07-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    1.022e+09
Venus      1.005e+09
Earth      9.928e+08
Mars       9.602e+08
Jupiter    9.602e+08
Saturn     1.000e+09
Uranus     9.717e+08
Neptune    9.994e+08
Pluto      9.955e+08