Obs. : 2015-12-27
Planet	Ly alpha (photons/cm^2/sec)
Mercury    4.586e+11
Venus      4.396e+11
Earth      4.231e+11
Mars       4.391e+11
Jupiter    4.419e+11
Saturn     4.481e+11
Uranus     4.128e+11
Neptune    4.256e+11
Pluto      4.630e+11