Obs. : 2014-10-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.220e+11
Venus      4.300e+11
Earth      4.146e+11
Mars       4.496e+11
Jupiter    4.170e+11
Saturn     4.319e+11
Uranus     4.351e+11
Neptune    4.452e+11
Pluto      4.513e+11