Obs. : 2017-05-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.010e+11
Venus      3.058e+11
Earth      2.916e+11
Mars       2.866e+11
Jupiter    2.889e+11
Saturn     2.927e+11
Uranus     3.005e+11
Neptune    3.000e+11
Pluto      2.966e+11