Lähteet

1. Urban, S. E. & Seidelmann, P. K. (eds.): Explanatory Supplement to the Astronomical Almanac, 3rd ed. University Science Books, 2013.
2. Explanatory Supplement to the Astronomical Ephemeris and the American Ephemeris and Nautical Almanac. Her Majesty's Stationery Office, London, 1961.
3. Meeus, J.: Astronomical Algorithms, 2nd ed. Willmann-Bell, 1998.
4. Meeus, J.: Elements of Solar Eclipses 1951–2200. Willmann-Bell, 1989.
5. Meeus, J.: Mathematical Astronomy Morsels. Willmann-Bell, 1997.
6. Meeus, J.: More Mathematical Astronomy Morsels. Willmann-Bell, 2002.
7. Meeus, J.: Mathematical Astronomy Morsels III. Willmann-Bell, 2004.
8. Meeus, J.: Mathematical Astronomy Morsels IV. Willmann-Bell, 2007.
9. Meeus, J.: Mathematical Astronomy Morsels V. Willmann-Bell, 2009.
10. Meeus, J.: “Total penumbral lunar eclipses”. Journal of the Royal Astronomical Society of Canada 74, 291, 1980. articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1980JRASC..74..291M&defaultprint=YES&filetype=.pdf
11. Espenak, F. & Meeus, J.: Five Millennium Canon of Solar Eclipses: −1999 to +3000. NASA/TP-2006-214141, 2006.
12. Espenak, F.: NASA Eclipse Web Site. eclipse.gsfc.nasa.gov
13. Rhodes, Brandon: Skyfield. rhodesmill.org/skyfield
14. EclipseWise (Fred Espenak): Enlargement of Earth's Shadows www.eclipsewise.com/lunar/LEhelp/LEenlargement.html
15. EclipseWise (Fred Espenak): Periodicity of Solar Eclipses eclipsewise.com/solar/SEhelp/SEperiodicity.html
16. EclipseWise (Fred Espenak): Periodicity of Lunar Eclipses eclipsewise.com/lunar/LEhelp/LEperiodicity.html