Schlyter, Paul (1997–2009). «Radiometry and photometry in astronomy» Starlight illuminance coincides with the human eye's minimum illuminance while moonlight coincides with the human eye's minimum colour vision illuminance (IEE Reviews, 1972, page 1183).
Kyba, Christopher C. M.; Mohar, Andrej; Posch, Thomas (1 de fevereiro de 2017). «How bright is moonlight?». Astronomy & Geophysics. 58 (1): 1.31–1.32. doi:10.1093/astrogeo/atx025
Schlyter, Paul (1997–2009). «Radiometry and photometry in astronomy» Starlight illuminance coincides with the human eye's minimum illuminance while moonlight coincides with the human eye's minimum colour vision illuminance (IEE Reviews, 1972, page 1183).