Obs. : 2015-03-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.758e+11
Venus      4.709e+11
Earth      4.404e+11
Mars       4.695e+11
Jupiter    4.479e+11
Saturn     4.707e+11
Uranus     4.695e+11
Neptune    4.758e+11
Pluto      4.733e+11