Obs. : 2015-01-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.998e+11
Venus      3.998e+11
Earth      4.234e+11
Mars       3.967e+11
Jupiter    4.500e+11
Saturn     4.396e+11
Uranus     4.002e+11
Neptune    3.967e+11
Pluto      4.186e+11