What is Solar year?
The '''solar year''' (also called '''tropical year''') is a calendar system based on the orbit of the [[Earth]] around the [[Sun]]. The [[Gregorian Calendar]] is an example of a [[solar calendar]]. Each year is slightly more than 365 days in a solar calendar; which is why there are leap days every 4 years. {{science-stub}} [[Category:Years]] [[Category:Calendars]] [[Category:Astronomy]]