Obs. : 2012-02-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.141e+11
Venus      4.121e+11
Earth      4.484e+11
Mars       4.474e+11
Jupiter    4.118e+11
Saturn     4.329e+11
Uranus     4.141e+11
Neptune    4.181e+11
Pluto      4.192e+11