Obs. : 2015-11-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.471e+11
Venus      4.462e+11
Earth      4.680e+11
Mars       4.462e+11
Jupiter    4.490e+11
Saturn     4.471e+11
Uranus     4.840e+11
Neptune    4.952e+11
Pluto      4.619e+11