Here’s the problem: the tropical year, the time it takes the Earth to go through a complete cycle of seasons, is 365.2422 days long (to four-decimal accuracy). If every calendar year were 365 days long, then the missing 0.2422 days would add up from year to year, each year starting a little earlier relative to … Continue reading February 30th
Tag Archives: Astronomy
New Year / Resolution
Christmas Day’s full moon made me decide to make my first post of the New Year about a resolution—specifically, the resolution of the human eye. (See what I did, there?) We’re so used to images of the full moon like the one above, it’s difficult to remember that, until the invention of the telescope in … Continue reading New Year / Resolution
(Be the first)