Obs. : 2012-02-18
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.198e+11
Venus      4.235e+11
Earth      4.126e+11
Mars       4.127e+11
Jupiter    4.179e+11
Saturn     4.085e+11
Uranus     4.235e+11
Neptune    4.198e+11
Pluto      4.020e+11