Obs. : 2015-02-21
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.914e+11
Venus      4.833e+11
Earth      4.684e+11
Mars       4.833e+11
Jupiter    4.684e+11
Saturn     4.565e+11
Uranus     4.797e+11
Neptune    4.861e+11
Pluto      4.748e+11