Obs. : 2024-04-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.452e+08
Venus      8.112e+08
Earth      8.469e+08
Mars       7.732e+08
Jupiter    8.477e+08
Saturn     7.732e+08
Uranus     8.477e+08
Neptune    7.959e+08
Pluto      7.747e+08