Obs. : 2016-08-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.700e+11
Venus      3.700e+11
Earth      3.816e+11
Mars       3.868e+11
Jupiter    3.700e+11
Saturn     3.868e+11
Uranus     3.916e+11
Neptune    3.839e+11
Pluto      3.790e+11