Obs. : 2009-12-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.585e+11
Venus      3.493e+11
Earth      3.666e+11
Mars       3.614e+11
Jupiter    3.618e+11
Saturn     3.501e+11
Uranus     3.604e+11
Neptune    3.618e+11
Pluto      3.546e+11