Obs. : 2025-04-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.011e+08
Venus      9.011e+08
Earth      8.574e+08
Mars       8.736e+08
Jupiter    8.839e+08
Saturn     9.011e+08
Uranus     8.875e+08
Neptune    9.011e+08
Pluto      9.188e+08