Obs. : 2020-05-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    6.311e+08
Venus      6.311e+08
Earth      6.375e+08
Mars       5.998e+08
Jupiter    6.075e+08
Saturn     6.075e+08
Uranus     6.220e+08
Neptune    6.011e+08
Pluto      6.075e+08