Obs. : 2019-02-23
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.593e+11
Venus      3.631e+11
Earth      3.546e+11
Mars       3.517e+11
Jupiter    3.577e+11
Saturn     3.607e+11
Uranus     3.533e+11
Neptune    3.624e+11
Pluto      3.631e+11