A system of constants introduced by international agreement to calculate the apparent positions of planets and stars at any time using common calculation principles in celestial mechanics, astronomy, and ephemeris. The current system of constants is the value adopted at the 16th General Assembly of the International Astronomical Union held in 1976. The system of astronomical constants consists of one defined constant, a linear constant, and a derived constant, and is constructed so that there are no contradictions between the values from the perspective of the latest theory and observational accuracy within the range of the digits of the adopted values. The current system of astronomical constants is listed below. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
天体力学,位置天文学,編暦などにおいて,任意の時刻における惑星や恒星の視位置を共通の計算原理で計算するために,国際協定により導入された定数系。現用の定数系は,1976年開催の第16回国際天文学連合総会で採択された値である。天文定数系は,1個の定義定数,一次定数,誘導定数からなり,採択された数値の桁数の範囲内で,最新の理論および観測精度の観点から数値間に矛盾を含まぬよう構築されている。以下に現用の天文定数系を掲げる。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
<<: Astronomical observatory - Tenmondai (English spelling)
>>: Astronomical time - Tenmonji
It can also be written as 鱠. As the Wamyōshō state...
A general term for the African lineage of the Cic...
This is insurance that pays benefits when the ins...
...After a dip in the 1960s, new forms of ballads...
Founded in 1876 as Japan's first private bank....
The act of entrusting a child to someone else to b...
A rebellion by the Métis that took place near pres...
...It has been flying to Japan since 1952. It was...
A device that is attached to machines, tools, and ...
…Depending on the type of solvent, they are divid...
...As the decay progresses further, the body beco...
…When biological tissues or food are ground and e...
A port in Tokyo. It is located on Hahajima in the ...
…Two more chakras are usually counted. One is the...
A legal scholar, lawyer and politician, he was bo...