Obs. : 2015-12-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.424e+11
Venus      4.645e+11
Earth      4.447e+11
Mars       4.589e+11
Jupiter    4.517e+11
Saturn     4.627e+11
Uranus     4.392e+11
Neptune    4.319e+11
Pluto      4.477e+11