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JavaDoc tweaks for tekufa
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src/main/java/com/kosherjava/zmanim/hebrewcalendar/JewishCalendar.java

Lines changed: 12 additions & 7 deletions
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@@ -1435,14 +1435,19 @@ private Double getTekufa() {
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* called on a day without a <em>tekufa</em> change, it will return a {@code null}. The default implementation of this method
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* will return the <em>tekufa</em> change according to the calculations of the <a href="https://zmanim.online/">Luach Itim
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* Lebinah</a> following <a href="https://en.wikipedia.org/wiki/Yechiel_Michel_Tucazinsky">Rabbi Yechiel Michel Tucazinsky</a>.
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* However, there is also the opinion of Rabbi Yonah Martzbach, who calculates the <em>tekufa</em> based on Local Mean Time (LMT)
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* in Israel which causes a 21-minute difference.
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* It should be noted that this method only covers two opinions of how to calculate the tekufa (based on 6 hours after Midday of the day before the tekufa).
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* The Rosh (Tosafos HaRosh Berachos 3:2) is of the opinion that the calculation starts at sunset and to use proportional hours.
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* While the Tashbetz (Shut Tashbetz Chelek 1, Siman 109) is also of the opinion that the calculation starts at sunset, however, he writes to use regular hours.
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* However, there is also the opinion of <a href=
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* "https://he.wikipedia.org/wiki/%D7%99%D7%95%D7%A0%D7%94_%D7%9E%D7%A8%D7%A6%D7%91%D7%9A">Rabbi Yonah Merzbach</a>, who
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* calculates the <em>tekufa</em> based on Local Mean Time (LMT) in Israel which causes a ~21-minute difference. It should be
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* noted that this method only covers two opinions of how to calculate the tekufa (based on 6 hours after Midday of the day
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* before the tekufa). The <a href="https://en.wikipedia.org/wiki/Asher_ben_Jehiel">Rosh</a> (Tosafos HaRosh <a href=
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* "https://www.sefaria.org/Tosafot_HaRosh_on_Berakhot.3b.6?lang=he">Berachos 3b</a>) is of the opinion that the calculation
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* starts at sunset and to use proportional hours. While the <a href="https://en.wikipedia.org/wiki/Simeon_ben_Zemah_Duran"
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* >Tashbetz</a> (Shut Tashbetz <a href="https://hebrewbooks.org/pdfpager.aspx?req=1381&st=&pgnum=91">Chelek 1, Siman 109</a>)
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* is also of the opinion that the calculation starts at sunset, however, his opinion is to use regular hours.
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* @param useLocalMeanTime if true, removes ~21 minutes from the time of the <em>tekufa</em> calculated by Rabbi Yechiel Michel
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* Tucazinsky, and will follow the opinion of Rabbi Yonah Martzbach.
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* @return an Instant with the time that the <em>tekufa</em> (season) changes or a null on a day with no <em>tekufa</em> change.
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* Tucazinsky, and will follow the opinion of Rabbi Yonah Merzbach.
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* @return an Instant with the time that the <em>tekufa</em> (season) changes or a {@code null} on a day with no <em>tekufa</em>
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* change.
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* @see #getTekufa()
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*/
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public Instant getTekufaAsInstant(boolean useLocalMeanTime) {

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