Obs. : 2023-05-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.922e+08
Venus      9.086e+08
Earth      8.879e+08
Mars       9.086e+08
Jupiter    8.855e+08
Saturn     8.629e+08
Uranus     8.922e+08
Neptune    8.682e+08
Pluto      8.736e+08