Editing New moon (section)

==Solar calendars holding moveable feasts==
===Baháʼí calendar===

The [[Baháʼí calendar]] is a solar calendar with certain new moons observed as [[moveable feasts]].
In the [[Baháʼí Faith]], effective from 2015 onwards, the "[[Twin Holy Birthdays]]", refer to two successive holy days in the [[Baháʼí calendar]] (the birth of the [[Báb]] and the [[birth of Bahá'u'lláh]]), will be observed on the first and the second day following the occurrence of the eighth new moon after [[Baháʼí Naw-Rúz|Naw-Rúz]] (Baháʼí New Year), as determined in advance by astronomical tables using [[Tehran]] as the point of reference.<ref>Momen, Moojan (2014). [http://wi.bahai.us/2014/11/29/the-badi-bahai-calendar-an-introduction The Badí` (Baháʼí) Calendar: An Introduction] {{Webarchive|url=https://web.archive.org/web/20150111210246/http://wi.bahai.us/2014/11/29/the-badi-bahai-calendar-an-introduction/ |date=2015-01-11 }}.</ref> This will result in the observance of the Twin Birthdays moving, year to year, from mid-October to mid-November according to the Gregorian calendar.<ref name=" Clarifications">{{Cite web |last=The Universal House of Justice |date=2014-07-10 |title=To the Baháʼís of the World |url=http://universalhouseofjustice.bahai.org/activities-bahai-community/20140710_001 |access-date=2015-01-01}}</ref>

===Christian liturgical calendar===
[[Easter]], the most important feast in the Christian [[liturgical calendar]], is a [[movable feast]]. The [[date of Easter]] is determined by reference to the [[ecclesiastical full moon]], which, being historically difficult to determine with precision, is defined as being fourteen days after the (first crescent) new moon.{{sfn|Mosshammer|2008|p= 76|ps=: "Theoretically, the epact 30=0 represents the new moon in conjunction with the sun. The epact of 1 represents the theoretical first visibility of the moon's first crescent. It is from that point as day one that the fourteenth day of the moon is counted."}}{{sfn|Dershowitz|Reingold|2008|pp=114-115}}