Since then, the perihelion and aphelion dates have drifted by a day every 58 years. In the short-term, the dates can vary up to two days from one year to another. Mathematicians and astronomers estimate that in 6430, over 4000 years from now, the perihelion will coincide with the March ...
Equinoxes and Solstices Calculator (1600 to 2400) "Earth's Seasons: Equinoxes, Solstices, Perihelion, and Aphelion (2000–2025)". Ekvinocij (ravnodnevnica) Sferna astronomija Solsticij na Wikimedijinoj ostavi "Earth's Seasons, Equinoxes, Solstices, Perihelion, and Aphelion, 2000–2020"....