Obs. : 2018-12-29
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.469e+11
Venus      3.424e+11
Earth      3.534e+11
Mars       3.546e+11
Jupiter    3.469e+11
Saturn     3.571e+11
Uranus     3.498e+11
Neptune    3.564e+11
Pluto      3.571e+11