天文年；回归年
astronomical───adj.天文的，天文学的；极大的
astronomical unit───天文单位（地球与太阳间的平均距离，约为9300万英里）
astronomical cost───天价
astronomical journal───天文学期刊（期刊名）
astronomical units───天文单位（地球与太阳间的平均距离，约为9300万英里）
year───n.年；年度；历年；年纪；一年的期间；某年级的学生
astronomical telescope───n.天文望远镜；n.[天]天文望远镜（等于Keplertelescope）
year by year───一年一年地; 年年; 逐年；逐年；年年
year on year───年同比，与前一年同期比较
Last year Chikako Yasui, now at the National Astronomical Observatory of Japan, and her colleagues reported on 111 newborn stars in a Milky Way exurb, over twice as far out as the sun.───去年，近子安井(现在日本国家天文台工作)及其同事报告说，银河系边远地区(比太阳远两倍以上)有111颗新生恒星。
So Emmerich found a way to kill the Earth using a faux astronomical event (there is no planetary alignment in the year 2012) and by inventing a solar interaction that has never been observed.───导演艾默里克用一个虚假的天文事件毁灭了地球(2012年是不会出现行星对其的现象的)，他还无中生有了从未观测到的太阳系互动行为。
This date shifting is a result of the discrepancy between a human calendar year—which is usually counted as 365 days—and an astronomical year, which is about 365.24 days.───这个日期的变化是人类的历年（通常以365天为计）与天文年（以365.24天）之间的差异而产生的。
Are you ready for the International astronomical year, 2009.
This date shifting is a result of the discrepancy between a human calendar year—which is usually counted as 365 days—and an astronomical year, which is about 365.24 days.