Obs. : 2014-01-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.400e+11
Venus      3.971e+11
Earth      4.173e+11
Mars       4.125e+11
Jupiter    4.173e+11
Saturn     3.904e+11
Uranus     4.346e+11
Neptune    4.400e+11
Pluto      3.971e+11