Obs. : 2009-07-04
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.453e+11
Venus      3.501e+11
Earth      3.536e+11
Mars       3.447e+11
Jupiter    3.510e+11
Saturn     3.689e+11
Uranus     3.486e+11
Neptune    3.510e+11
Pluto      3.592e+11