Obs. : 2015-10-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.567e+11
Venus      4.294e+11
Earth      4.191e+11
Mars       4.387e+11
Jupiter    4.294e+11
Saturn     4.754e+11
Uranus     4.415e+11
Neptune    4.537e+11
Pluto      4.884e+11