Epact (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Epact" in English language version.

Last modified: 14:56:15, 25 June 2026 (UTC)

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arxiv.org (Global: 49^th place; English: 31^st place)

Fukś, Henryk (2022), "Mathematics in the liturgical books of the Catholic Church: phases of the ecclesiastical moon", Antiquitates Mathematicae, 16: 259--282, arXiv:2601.00474, doi:10.14708/am.v16i1.7138

Fukś, Henryk (2022), "Mathematics in the liturgical books of the Catholic Church: phases of the ecclesiastical moon", Antiquitates Mathematicae, 16: 259--282, arXiv:2601.00474, doi:10.14708/am.v16i1.7138
Dekker, Elly (1993). "Epact Tables on Instruments: Their definition and use". Annals of Science. 50 (4): 303–324. doi:10.1080/00033799300200251.

Richards, E. G. (2012), "Calendars" (PDF), in Urban, S. E.; Seidelman, P. K. (eds.), Explanatory Supplement to the Astronomical Almanac, Mill Valley, CA: University Science Books, pp. 599–601, ISBN 978-1-891389-85-6, archived from the original (PDF) on 2019-04-30, retrieved 2017-01-24, The Epact of a year … is the age in days (0 to 29) of the ecclesiastical moon on the first day of the year (January 1).

Richards, E. G. (2012), "Calendars" (PDF), in Urban, S. E.; Seidelman, P. K. (eds.), Explanatory Supplement to the Astronomical Almanac, Mill Valley, CA: University Science Books, pp. 599–601, ISBN 978-1-891389-85-6, archived from the original (PDF) on 2019-04-30, retrieved 2017-01-24, The Epact of a year … is the age in days (0 to 29) of the ecclesiastical moon on the first day of the year (January 1).
Moyer, G. (1983). "Aloysius Lilius and the Compendium novae rationis restituendi kalendarium" (PDF). In Coyne, George V.; Hoskin, Michael A.; Pedersen, O. (eds.). Gregorian Reform of the Calendar. Vatican Conference to commemorate [the Gregorian Reform's] 400th Anniversary, 1582–1982 (PDF). Vatican City, IT: Pontifical Academy of Sciences, Vatican Observatory. p. 171. Archived from the original (PDF) on 16 November 2019. Retrieved 20 January 2024.
Pedersen, O. (c. 1982). "The ecclesiastical calendar and the life of the Church" (PDF). In Coyne, G.V.; Hoskin, M.A.; Pedersen, O. (eds.). Gregorian Reform of the Calendar. Vatican Conference to commemorate [the Gregorian Reform's] 400th Anniversary, 1582–1982 (PDF). Vatican City, IT: Pontifical Academy of Sciences, Vatican Observatory (published 1983). pp. 39–59. Archived from the original (PDF) on 25 May 2015. Retrieved 13 May 2023.