Obs. : 2014-01-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.382e+11
Venus      4.364e+11
Earth      4.281e+11
Mars       4.075e+11
Jupiter    4.281e+11
Saturn     4.047e+11
Uranus     4.243e+11
Neptune    4.325e+11
Pluto      4.364e+11