Obs. : 2024-04-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.374e+08
Venus      8.374e+08
Earth      9.849e+08
Mars       8.607e+08
Jupiter    8.493e+08
Saturn     8.607e+08
Uranus     8.493e+08
Neptune    8.552e+08
Pluto      8.835e+08