Obs. : 2017-03-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.677e+11
Venus      3.677e+11
Earth      3.640e+11
Mars       3.577e+11
Jupiter    3.640e+11
Saturn     3.706e+11
Uranus     3.624e+11
Neptune    3.754e+11
Pluto      3.718e+11