Obs. : 2020-05-10
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.377e+08
Venus      6.329e+08
Earth      6.173e+08
Mars       6.000e+08
Jupiter    6.013e+08
Saturn     6.013e+08
Uranus     6.300e+08
Neptune    6.021e+08
Pluto      6.013e+08