Obs. : 2018-11-22
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.511e+11
Venus      3.474e+11
Earth      3.520e+11
Mars       3.524e+11
Jupiter    3.511e+11
Saturn     3.515e+11
Uranus     3.512e+11
Neptune    3.524e+11
Pluto      3.530e+11