Obs. : 2011-05-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.252e+11
Venus      4.252e+11
Earth      3.949e+11
Mars       4.252e+11
Jupiter    4.263e+11
Saturn     4.181e+11
Uranus     4.235e+11
Neptune    4.073e+11
Pluto      3.927e+11