Obs. : 2015-01-16
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.941e+11
Venus      3.941e+11
Earth      4.011e+11
Mars       3.882e+11
Jupiter    4.248e+11
Saturn     4.324e+11
Uranus     3.850e+11
Neptune    3.882e+11
Pluto      4.147e+11