Obs. : 2016-01-19
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.258e+11
Venus      4.215e+11
Earth      4.095e+11
Mars       4.123e+11
Jupiter    4.135e+11
Saturn     4.182e+11
Uranus     4.049e+11
Neptune    4.103e+11
Pluto      4.258e+11