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Research

Research corpora built from primary sources

Each research site here asks one question in depth and answers it from the primary documents: papers, almanacs, datasets and published code. Every claim carries a graded citation, formulas are quoted with their constants, and each topic ends with the questions the sources could not close. The sources are on GitHub.

Total solar eclipse of 11 August 1999

Computing Eclipses, Occultations and Transits

How solar and lunar eclipses, occultations by the Moon and minor bodies, transits of Mercury and Venus, and the phenomena of Jupiter's and Saturn's moons are computed: algorithms, constants, datasets, implementations and validation.

Eclipse photograph: Luc Viatour / lucnix.be, CC BY-SA 3.0.