Obs. : 2014-05-03
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.117e+11
Venus      4.100e+11
Earth      3.935e+11
Mars       3.841e+11
Jupiter    3.928e+11
Saturn     3.925e+11
Uranus     4.111e+11
Neptune    4.088e+11
Pluto      3.994e+11