Obs. : 2012-06-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.195e+11
Venus      4.300e+11
Earth      4.484e+11
Mars       4.336e+11
Jupiter    4.354e+11
Saturn     4.454e+11
Uranus     4.530e+11
Neptune    4.411e+11
Pluto      4.484e+11