Obs. : 2018-03-25
Planet	Ly alpha (photons/cm^2/sec)
Mercury    3.563e+11
Venus      3.508e+11
Earth      3.419e+11
Mars       3.471e+11
Jupiter    3.437e+11
Saturn     3.474e+11
Uranus     3.508e+11
Neptune    3.566e+11
Pluto      3.499e+11