Obs. : 2018-03-12
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.492e+11
Venus      3.492e+11
Earth      3.519e+11
Mars       3.490e+11
Jupiter    3.503e+11
Saturn     3.488e+11
Uranus     3.468e+11
Neptune    3.522e+11
Pluto      3.488e+11