Obs. : 2011-05-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.290e+11
Venus      4.290e+11
Earth      4.291e+11
Mars       4.290e+11
Jupiter    4.290e+11
Saturn     4.233e+11
Uranus     4.374e+11
Neptune    4.248e+11
Pluto      4.272e+11