And it's not because of leap seconds; it's a fundamental property of most days.
Share to linkedin
Although it takes Earth 23 hours and 56 minutes and 4.09 seconds to spin 360 degrees on its axis, the Earth is also in motion with respect to the Sun. If we demand that the Sun reach the same point in the sky from one day to the next, we need to account for the Earth's motion as well.A day isn't the time it takes Earth to rotate 360°, which leaves us 3 minutes and 55.91 seconds short.
Over the course of a 365-day year, the Sun appears to move not only up-and-down in the sky, as determined by our axial tilt, but ahead-and-behind, as determined by our elliptical orbit around the Sun. When both effects are combined, the pinched figure-8 that results is known as an analemma. The Sun images shown here are a selected 52 photographs from César Cantú's observations in Mexico over the course of a calendar year.That extra rotation takes 235.
Canada Latest News, Canada Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
You Can Get Kate Middleton's All-Time Favorite White Sneakers for Just $49 TodayKate Middleton's Favorite Superga Sneakers Are Only $49 Today
Read more »
https://www.instyle.comInStyle is the leading site for celebrity style. See expert fashion advice, star hairstyles, beauty tips, how-to videos and real-time red carpet coverage.
Read more »
Meet ‘Chet.’ His Employer Knows What Time He Woke Up Today.Want to see just how closely companies can track what you do, where you go and who you meet? Follow a day in the life of an office worker being monitored by his company.
Read more »
What to watch today: The Fed, deal to form a new US drug maker, and Trump's intel chief resignsU.S. stock futures are drifting ahead of the Fed's two-day July meeting, which begins tomorrow.
Read more »