Obs. : 2023-09-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    8.836e+08
Venus      8.851e+08
Earth      9.152e+08
Mars       8.822e+08
Jupiter    9.159e+08
Saturn     9.122e+08
Uranus     9.104e+08
Neptune    9.152e+08
Pluto      9.002e+08