Obs. : 2023-07-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.341e+08
Venus      9.339e+08
Earth      9.603e+08
Mars       9.339e+08
Jupiter    9.178e+08
Saturn     9.628e+08
Uranus     9.178e+08
Neptune    9.486e+08
Pluto      9.619e+08