sidereal year是什么意思_sidereal year的用法_词性_词根

双语例句

With its decidedly undecimal sidereal year of 365-and-a-quarter days, that is just not going to happen.

这种事不会发生，因为“恒星年（由365又1/4天所组成）是十一进制的”这一事实是确凿无疑的。
Tropical year, and sidereal year are two different concepts.

回归年与恒星年是不同的两个概念。
Tropical year , and sidereal year are two different concepts .

在即回归年与恒星年是不同的两个概念。
Unfortunately, here on planet Earth, with its decidedly undecimal sidereal year of 365-and-a-quarter days, that is just not going to happen.

但是不巧的是，在地球这个行星星球上，这种事不会发生，因为“恒星年（由365又1/4天所组成）是非十进制的”这一事实是确凿无差的。
Approximately, a year has 365 solar days but 366 sidereal days. Do you know why.

一年中大约有365个太阳日，但却有366个恒星日，你知道原因吗？

释义

Astronomy the orbital period of the earth around the sun, taking the stars as a reference frame. It is 20 minutes longer than the tropical year because of precession.

【天文】恒星年。