Obs. : 2016-12-20
Planet	Ly alpha (photons/cm^2/sec)
Mercury    2.833e+11
Venus      2.849e+11
Earth      2.773e+11
Mars       2.837e+11
Jupiter    2.682e+11
Saturn     2.757e+11
Uranus     2.800e+11
Neptune    2.837e+11
Pluto      2.833e+11