Obs. : 2016-04-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.164e+11
Venus      4.176e+11
Earth      3.942e+11
Mars       3.947e+11
Jupiter    4.015e+11
Saturn     3.967e+11
Uranus     4.176e+11
Neptune    4.080e+11
Pluto      4.008e+11