Obs. : 2013-04-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.322e+11
Venus      4.151e+11
Earth      4.337e+11
Mars       4.151e+11
Jupiter    3.923e+11
Saturn     4.229e+11
Uranus     4.322e+11
Neptune    4.561e+11
Pluto      4.528e+11