Obs. : 2016-02-07
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.228e+11
Venus      4.231e+11
Earth      4.529e+11
Mars       4.389e+11
Jupiter    4.555e+11
Saturn     4.256e+11
Uranus     4.301e+11
Neptune    4.287e+11
Pluto      4.231e+11