Obs. : 2018-11-28
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.458e+11
Venus      3.422e+11
Earth      3.461e+11
Mars       3.463e+11
Jupiter    3.458e+11
Saturn     3.494e+11
Uranus     3.447e+11
Neptune    3.463e+11
Pluto      3.494e+11