复活节[Easter] - 达人(其实～我是卧底，来自外星)

2004/12/25 | 复活节[Easter]
类别(¤〖天文〗) | 评论(0) | 阅读(35) | 发表于 13:28: The commonly stated rule that Easter is the first Sunday after the first full moon after the vernal equinox is not quite correct. Easter is actually the first Sunday strictly after the "Paschal full moon" (i.e., if the Paschal full moon falls on a Sunday, Easter is the following Sunday). The date of the Paschal full moon is determined from tables, and it may differ from the date of the actual full moon by up to two days (Marcos).

The possible dates for the Paschal full moon are March 21 through April 18. This gives the date of Easter as March 22 through April 25. The days on which Easter occurs repeat with a period of 1,900,000 years, and consecutive Easters are always separated by 350, 357, 378, or 385 days.The following table gives the dates for Easter between 1980 and 2009.
<DIV ALIGN="CENTER"> <TABLE CELLPADDING=3 BORDER="1"> <TR><TD ALIGN="RIGHT">1980</TD> <TD ALIGN="LEFT">April 6</TD> <TD ALIGN="RIGHT">1990</TD> <TD ALIGN="LEFT">April 15</TD> <TD ALIGN="RIGHT">2000</TD> <TD ALIGN="LEFT">April 23</TD> </TR> <TR><TD ALIGN="RIGHT">1981</TD> <TD ALIGN="LEFT">April 19</TD> <TD ALIGN="RIGHT">1991</TD> <TD ALIGN="LEFT">March 31</TD> <TD ALIGN="RIGHT">2001</TD> <TD ALIGN="LEFT">April 15</TD> </TR> <TR><TD ALIGN="RIGHT">1982</TD> <TD ALIGN="LEFT">April 11</TD> <TD ALIGN="RIGHT">1992</TD> <TD ALIGN="LEFT">April 19</TD> <TD ALIGN="RIGHT">2002</TD> <TD ALIGN="LEFT">March 31</TD> </TR> <TR><TD ALIGN="RIGHT">1983</TD> <TD ALIGN="LEFT">April 3</TD> <TD ALIGN="RIGHT">1993</TD> <TD ALIGN="LEFT">April 11</TD> <TD ALIGN="RIGHT">2003</TD> <TD ALIGN="LEFT">April 20</TD> </TR> <TR><TD ALIGN="RIGHT">1984</TD> <TD ALIGN="LEFT">April 22</TD> <TD ALIGN="RIGHT">1994</TD> <TD ALIGN="LEFT">April 3</TD> <TD ALIGN="RIGHT">2004</TD> <TD ALIGN="LEFT">April 11</TD> </TR> <TR><TD ALIGN="RIGHT">1985</TD> <TD ALIGN="LEFT">April 7</TD> <TD ALIGN="RIGHT">1995</TD> <TD ALIGN="LEFT">April 16</TD> <TD ALIGN="RIGHT">2005</TD> <TD ALIGN="LEFT">March 27</TD> </TR> <TR><TD ALIGN="RIGHT">1986</TD> <TD ALIGN="LEFT">March 30</TD> <TD ALIGN="RIGHT">1996</TD> <TD ALIGN="LEFT">April 7</TD> <TD ALIGN="RIGHT">2006</TD> <TD ALIGN="LEFT">April 16</TD> </TR> <TR><TD ALIGN="RIGHT">1987</TD> <TD ALIGN="LEFT">April 19</TD> <TD ALIGN="RIGHT">1997</TD> <TD ALIGN="LEFT">March 30</TD> <TD ALIGN="RIGHT">2007</TD> <TD ALIGN="LEFT">April 8</TD> </TR> <TR><TD ALIGN="RIGHT">1988</TD> <TD ALIGN="LEFT">April 3</TD> <TD ALIGN="RIGHT">1998</TD> <TD ALIGN="LEFT">April 12</TD> <TD ALIGN="RIGHT">2008</TD> <TD ALIGN="LEFT">March 23</TD> </TR> <TR><TD ALIGN="RIGHT">1989</TD> <TD ALIGN="LEFT">March 26</TD> <TD ALIGN="RIGHT">1999</TD> <TD ALIGN="LEFT">April 4</TD> <TD ALIGN="RIGHT">2009</TD> <TD ALIGN="LEFT">April 12</TD> </TR> </TABLE> </DIV>
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According to a British correspondent, the Book of Common Prayer (enshrined in English Law around 1526) defines Easter day as the first Sunday after the full moon, which happens upon, or next after the twenty first day of March; and if the full moon happens upon a Sunday, Easter Day is the Sunday after. This would appear to contract the use of the Paschal full moon.; 0

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