Obs. : 2015-02-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    5.089e+11
Venus      4.927e+11
Earth      4.690e+11
Mars       4.927e+11
Jupiter    4.700e+11
Saturn     5.076e+11
Uranus     4.789e+11
Neptune    4.996e+11
Pluto      5.065e+11