Synonyms for astronomical year
EXAMPLES FROM THE WEB FOR ASTRONOMICAL YEAR
Do all that you can to teach the signs of the zodiac, the days of the seasons, and all the doings of the astronomical year.
His astronomer, by name Sosigenes, did his best, but assumed the astronomical year to be 11 min.
It appears that in China there is no attempt to make the civil year or year of the calendar coincide with the astronomical year.