今日の日は 小暑であっても 七夕でない

【ふたご座の右が夏至、中が小暑、左が大暑の太陽】

　東京では今日７月７日を七夕と言ってますが、今の時季に七夕の星である「琴座のベガ」織姫星と「わし座のアルタイル」彦星、及び「天の川」は南東の空低く、しかも、梅雨の最中であり、殆ど見えません。７月７日が七夕とは旧暦でのことです。何故こんな間違いを１５０年間も引きずっているのでしょう。。

　七夕とは旧暦の「七月」で、しかも、月の満ち欠けが「七日目」の晩を言います。ですから、今年は現行暦の８月１４日が本当の天文の位置であり、ほぼ頭上の見やすい位置にぺガとアルタイルがあり、西にお椀の舟のような半月がある天文の配置になります。この日は毎年必ず先勝と決まってます。「恋は先勝」なのでしょうか。

　ところで、今日は二十四節気の「小暑」です。こちらは本当です。地球から見た太陽の位置は赤経で７ｈ、つまり７×１５°で太陽黄経１０５°にあり、「ふたご座」の前面に太陽が来ています。実際は昼間なので確認できませんが、半年後の小寒の日の午前０時に「ふたご座」が真南に来ていることで、これを証明できます。

 In Tokyo, July 7th is called Tanabata Vega festival today, but in this season, the stars of Tanabata such as "Vega of Lyra" Orihime, "Altair of Aquila" Hikoboshi, and "Milky Way" are low in the southeastern sky, and moreover, it is in the middle of the rainy season so that we can hardly see it. July 7th is Tanabata in the lunar calendar. Why have Japanese people been making such a mistake for 150 years since the beginning of Meiji era?

 Tanabata is the "7th month" of the lunar calendar, and the phases of the moon are the night of the "seventh day". Therefore, this year, August 14th of the current calendar is their true astronomical position, with Vega and Altair almost overhead and a half moon like a bowl boat in the west. What's more, this day is always Sensho that means the first win every year. Is "love first win"?

 By the way, today is the "small heat" of 24 solar calendar. This is true. The position of the sun as seen from our earth is 7h in Right Ascension, that is, 7 × 15 °, the ecliptic of the sun is 105 ° from the vernal equinox, and the sun is in front of the constellation of Gemini. Actually, it is daytime, so we can't confirm it, but we can prove this by the fact that "Gemini" comes to due south at midnight on a cold day just six months later.

上の英文をネイティブの発音で聴くには英文をドラッグしてコピーし、次に貼り付けて下さい。https://ttsreader.com/ja/