Obs. : 2025-01-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.643e+08
Venus      8.827e+08
Earth      8.818e+08
Mars       9.060e+08
Jupiter    9.585e+08
Saturn     8.605e+08
Uranus     9.527e+08
Neptune    8.827e+08
Pluto      8.643e+08