2월 마지막날 29일/윤달,윤일은 왜 생기나?

<p><b>2월 마지막날 29일</b> <br>힘차게 보내소서~!!</p><ul style="list-style-type: disc;" data-ke-list-type="disc"><li><p> </p><div class="figure-img" data-ke-type="image" data-ke-style="alignCenter" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZXRQ/944260337b28f24a92ecc3d3c1c48fe8f5c8d783" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZXRQ/944260337b28f24a92ecc3d3c1c48fe8f5c8d783" data-origin-width="964" data-origin-height="540"></div></li></ul><ul style="list-style-type: disc;" data-ke-list-type="disc"><li><div class="figure-img" data-ke-type="image" data-ke-style="alignCenter" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZXRQ/889fe90c188a4285097a1346541cc10702f38d6d" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1ZXRQ/889fe90c188a4285097a1346541cc10702f38d6d" data-origin-width="361" data-origin-height="181"></div></li></ul><p><br>윤일 윤달?<br><br>윤일이란 무엇일까?<br>윤일은 양력 사용시 <br>사용되는데 <br><br>양력은 지구가 태양을 <br>한바퀴 도는데 걸리는 <br>약 365.2422일을<br>12개월을 나눈 <br>역법 입니다.<br><br>한달에 30일과 31일을 <br>적용(2월 28일)해서 <br>1년이 총 365일 <br>되도록 맞춥니다.<br><br>매년 남은 우수리 <br>0.2422일을 <br>4년간 모았다가 <br>2월에 하루를 더합니다.<br><br>윤년이란 무엇일까?<br><br>2월에 하루 더 있는 해가<br>윤년입니다. <br>4년마다 오구요.<br><br>윤년에는 일년이 <br>366일이 되며<br>29일은 윤일 ! !<br><br>올해가 윤년<br>윤일은 오늘 입니다<br><br>윤달은 양력과 음력의 <br>차이를 채워주기 위해<br>생기는 개념입니다.<br><br>윤달이 있는 음력 개월수는<br>13으로 평소 12월 보다<br>한달 더 많습니다.<br><br>총 음력일수는 <br>383.384일<br>윤달은 5월,<br><br>음력에서 말하는 한달은 <br>1삭망월로 29.53059일이고<br>지구 공전 자전주기는 <br>365.2422일이므로<br>음력의 12개월은 <br>1태양년보다<br>약 10.875일이 짧습니다<br><br>이런 차이를 채우기 위해서<br>3년에 한달 8년에 <br>석달의 윤달을 채웁니다<br><br>음력에서는 윤달이<br>들어 있는 해가 <br>윤년입니다.<br><br>덤으로 받은 하루!!!^^</p><p><br><br><br></p><ul style="list-style-type: disc;" data-ke-list-type="disc"><li><div class="figure-img" data-ke-type="image" data-ke-style="alignCenter" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1ZXRQ/dc821624dc99d4834834fa86b6d745fec8d55911" 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