Obs. : 2017-03-26
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.700e+11
Venus      3.664e+11
Earth      3.754e+11
Mars       3.691e+11
Jupiter    3.774e+11
Saturn     3.662e+11
Uranus     3.700e+11
Neptune    3.647e+11
Pluto      3.645e+11