Obs. : 2016-01-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.404e+11
Venus      4.292e+11
Earth      4.306e+11
Mars       4.274e+11
Jupiter    4.296e+11
Saturn     4.284e+11
Uranus     4.530e+11
Neptune    4.627e+11
Pluto      4.404e+11