Obs. : 2019-02-13
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.496e+11
Venus      3.572e+11
Earth      3.534e+11
Mars       3.436e+11
Jupiter    3.564e+11
Saturn     3.572e+11
Uranus     3.436e+11
Neptune    3.449e+11
Pluto      3.572e+11