Obs. : 2024-01-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.706e+08
Venus      9.820e+08
Earth      9.087e+08
Mars       9.544e+08
Jupiter    8.723e+08
Saturn     8.626e+08
Uranus     8.938e+08
Neptune    8.503e+08
Pluto      9.294e+08