Talk:Lunisolar calendar

message: With some more citations it could be a B.
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—Yamara ✉ 22:10, 12 February 2008 (UTC)
thread_title:  [[Wikipedia:WikiProject_Time/Assessment|WikiProject Time assessment rating]] comment 

message: How dow you know when is the year has 12 months or 13 months
:That depends on the actual intercalation rules of the respective calendar. As a rule of thumb: the 13th month is inserted when the date of the the beginning of spring (vernal equinox) is more then 30 days earlier then its last possible date. andy
The 19-year cycle (235 synodic months, including 7 embolismic months) is the classic Metonic cycle, which is used in most arithmetical lunisolar calendars. It is a combination of the 8- and 11-year period, and whenever the error of the 19-year approximation has built up to a full day, a cycle can be truncated to 8 or 11 years, after which 19-year cycles can start anew. 
A full day? 61.131.122.70 (talk) 03:05, 19 February 2011 (UTC)
thread_title: Discussion

message: I updated this article (which looked rather dilapidated) by merging information that didn't fit nicely in Month. However I didn't know what to do with the following section, so I've put it here:
A representative sequence of common and leap years is ccLccLcLccLccLccLcL, which is the classic nineteen-year Metonic cycle. The Hebrew and Buddhist calendars restrict the leap month to a single month of the year, so the number of common months between leap months is usually 36 months but occasionally only 24 months elapse. The Chinese and Hindu lunisolar calendars allow the leap month to occur after or before (respectively) any month but use the true motion of the sun, so their leap months do not usually occur within a couple of months of perihelion, when the apparent speed of the sun along the ecliptic is fastest (now about 3 January). This increases the usual number of common months between leap months to roughly 34 months when a doublet of common years occurs while reducing the number to about 29 months when only a common singleton occurs.
This section is pretty technical, and I feel it doesn't "fit". I suggest including it in the articles of the mentioned calendars, or adding an external link to a site by a calendar expert. squell 00:20, 29 October 2005 (UTC)
replies: text: I don't see a good reason for excluding the deleted section, although I am partial to it because I wrote it. Being technical should not exclude anything from any Wikipedia article. It does 'fit' because it discusses leap months in lunisolar calendars. — Joe Kress 06:16, 29 October 2005 (UTC)
thread_title:  Merging "Calendrical implications" from [[Month]] 

message: I'm not sure why the external links section was deemed to have too many to the same site since the site is not straight-forward to navigate, but I have reverted this simple deletion and believe the section is now in compliance with Wikipedia:External_links#External_links_section Kind regards, --Greatwalk 00:41, 18 March 2007 (UTC)
replies: text: It is a shame you have still not read the appropriate guidelines. Please see Important points to remember, point 3: "Try to avoid linking to multiple pages from the same website". --Pak21 08:23, 19 March 2007 (UTC)
thread_title:  External Link section 

message: Is there anything at all notable about the content in the Further Examples section? It looks like self-aggrandizement to me. QVanillaQ 19:35, 22 June 2007 (UTC)
thread_title:  Further Examples section 

message: Solilunar is the correct term for calendars which are both lunar and solar but more successful in tracking the lunar cycle than the solar. Lunisolar means calendars which are both lunar and solar but more successful in tracking the solar cycle than the lunar. Lunisolar calendars actually aren't possible at all if it's better on tracking the solar cycle than the lunar, and most of the so-called 'lunisolar' calendars are actually solilunar. There's no such thing as lunisolar!  —Preceding unsigned comment added by 172.216.110.42 (talk) 17:56, 23 November 2007 (UTC)
replies: text: I've reverted your change for several reasons. It was within what appears to be a direct quote which must written as it appears without any changes. Although I understand your argument, solilunar is non-standard. Lunisolar is standard in all sources. Furthermore, the Shorter Oxford English Dictionary does not support your distinction. It says that both lunisolar and soli-lunar or solunar (or sol-lunar) mean of or pertaining to both the sun and moon (although probably a coincidence, "sun" is listed before "moon" in all three definitions). — Joe Kress (talk) 23:51, 23 November 2007 (UTC)
thread_title:  Solilunar vs. lunisolar 

message: This can be tricky, and is explained at http://www.sym454.org/leap/, use your web browser to find the places where the term "lunisolar" is mentioned. It seems to me worthwhile to add such a section to this Wikipedia page, but I hesitate to follow a similar verbose equation format. Kalendis (talk) 20:08, 16 May 2011 (UTC)
replies: text: So the issue is how often to insert a leap month. This is the fractional part of the mean year expressed in mean months. For mean year between 365.2416 and 365.2428 days and mean month between 29.53057 and 29.53060 days, this ranges between 36.824% and 36.830%. Within this range are the fractions 109/296, 116/315, 123/334, 130/353, 137/372, 144/391 and 151/410. Karl (talk) 08:48, 20 May 2011 (UTC)

text: I don't understand exactly what Kalendis wants here. For example, one could work out the mean year for a given mean month and proportion of years that have leap months. Is this what is wanted? If not, what is it?  Karl (talk) 10:48, 24 May 2011 (UTC)
thread_title:  Calculation of the exact mean year for a lunisolar calendar 

message: Would someone look at talk:Epact#Leap day or leap month?, please, to confirm or deny my belief that there is a serious error in need of correction. --John Maynard Friedman (talk) 10:43, 7 October 2021 (UTC)
thread_title:  Second opinion requested at 'Epact' 

message: The following Wikimedia Commons file used on this page or its Wikidata item has been nominated for deletion:
* 
Participate in the deletion discussion at the . —Community Tech bot (talk) 17:23, 8 February 2022 (UTC)
thread_title:  A Commons file used on this page or its Wikidata item has been nominated for deletion 

message: At present, the section Determining leap months in the article begins  and continues with  which has a  tag that says  The arithemetic is not difficult, the only question is how to express it succinctly and it is critical that the words "year" and "month" be disambiguated.
(FWIW, I suggest that opening paragraph of the section needs to be rewritten in English because at present it is self-indulgent waffle. But one issue at a time.) 
So how about:
* A combination of 12 'short' lunar years (12 lunar months) and 7 'long' lunar years (13 lunar months) (or  ) will be almost equal to 19 solar years. This is because an average lunar month#synodic month lasts about 29.53059 days and so 235 × 29.53059 = 6,939.68865 days. An average solar year is 365.2422 days thus 19 × 365.2422 = 6,939.6018 days. So this simple algorithm is accurate to 0.08 days a year or a little less than one day a century.
Any advance on that? 𝕁𝕄𝔽 (talk) 11:28, 11 February 2024 (UTC)
thread_title:  Determining leap months