Obs. : 2019-01-06
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.665e+11
Venus      3.608e+11
Earth      3.635e+11
Mars       3.649e+11
Jupiter    3.627e+11
Saturn     3.665e+11
Uranus     3.629e+11
Neptune    3.677e+11
Pluto      3.683e+11