Obs. : 2023-11-17
Planet	Ly alpha (photons/cm^2/sec)
Mercury    9.056e+08
Venus      8.315e+08
Earth      7.905e+08
Mars       8.594e+08
Jupiter    7.905e+08
Saturn     8.759e+08
Uranus     7.902e+08
Neptune    8.481e+08
Pluto      9.140e+08