Obs. : 2019-01-09
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.534e+11
Venus      3.446e+11
Earth      3.489e+11
Mars       3.463e+11
Jupiter    3.471e+11
Saturn     3.534e+11
Uranus     3.462e+11
Neptune    3.492e+11
Pluto      3.572e+11