Obs. : 2019-01-15
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.542e+11
Venus      3.415e+11
Earth      3.474e+11
Mars       3.552e+11
Jupiter    3.425e+11
Saturn     3.542e+11
Uranus     3.493e+11
Neptune    3.582e+11
Pluto      3.542e+11