Editing Lunar eclipse (section)

=== Central lunar eclipse ===
Central lunar eclipse is a total lunar eclipse during which the Moon passes near and through the centre of Earth's shadow, contacting the [[antisolar point]].<ref>{{Cite book |last1=Westfall |first1=John |title=Celestial Shadows: Eclipses, Transits, and Occultations |last2=Sheehan |first2=William |publisher=Springer |year=2014 |isbn=978-1493915354 |pages=50}}</ref> This type of lunar eclipse is [[list of central lunar eclipses|relatively rare]].

The [[lunar distance (astronomy)|relative distance]] of the Moon from Earth at the time of an eclipse can affect the eclipse's duration. In particular, when the Moon is near [[apogee]], the farthest point from Earth in [[orbit of the Moon|its orbit]], its [[orbital speed]] is the slowest. The diameter of Earth's umbra does not decrease appreciably within the changes in the Moon's orbital distance. Thus, the concurrence of a totally eclipsed Moon near apogee will lengthen the duration of totality.