Obs. : 2015-05-14
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.615e+11
Venus      4.654e+11
Earth      5.050e+11
Mars       4.568e+11
Jupiter    4.725e+11
Saturn     5.011e+11
Uranus     4.563e+11
Neptune    4.577e+11
Pluto      5.021e+11