Obs. : 2019-03-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.578e+11
Venus      3.577e+11
Earth      3.531e+11
Mars       3.460e+11
Jupiter    3.525e+11
Saturn     3.543e+11
Uranus     3.486e+11
Neptune    3.604e+11
Pluto      3.543e+11