Obs. : 2014-02-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.949e+11
Venus      4.637e+11
Earth      4.380e+11
Mars       4.285e+11
Jupiter    4.329e+11
Saturn     4.300e+11
Uranus     4.797e+11
Neptune    5.017e+11
Pluto      4.469e+11