Obs. : 2024-02-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.295e+08
Venus      9.384e+08
Earth      9.119e+08
Mars       9.295e+08
Jupiter    8.508e+08
Saturn     8.874e+08
Uranus     8.566e+08
Neptune    8.688e+08
Pluto      9.209e+08