Imagine a Neanderthal peering out of his cave some dark summer night as the Full Moon rises above the horizon. The illustration below shows all eight main and minor Moon phases and where they occur in the lunar cycle. These interim phases are Waxing Crescent Moon, Waxing Gibbous Moon, Waning Gibbous Moon and Waning Crescent Moon. Unlike the main phases, these minor phases don’t happen at a specific time or luminosity, rather they describe the Moon’s phase for the entire time period between each main phase. The remaining four Moon phases occur at halfway points between the main phases. To learn more about the exact time of the Full Moon and the current Full Moon info, check out these Current Full Moon times. In reality, the exact moment of the Full Moon can be timed to the second. When people say “today is a Full Moon” it’s important to remember that doesn’t mean the Moon is full all day long, only that the Full Moon Phase occurs on this day. The First and Last Quarter phases happen when the Moon is exactly half illuminated, with 50-percent luminosity. The New Moon Phase occurs when the Moon is completely dark with zero-percent luminosity, while the Full Moon Phase is completely bright with 100-percent luminosity. These phases occur at very specific times and are measured by both the Moon’s luminosity and how far along the Moon is in its orbit around Earth. The four main Moon phases in order are the New Moon, First Quarter Moon, Full Moon and Last Quarter Moon. The illustration is set to your computer’s clock and therefore gives you an accurate reading for your own particular time zone. The illustration above shows the range of illumination for today - March 05, 2023. And while the changes may seem slow, on any given day the amount of Moon illuminated by the Sun can vary by as much as 10-percent. Learn how the body clock works and why it’s so important.It’s the Moon’s journey as it orbits around Earth that creates the predictable dance between light and shadow. Lina Törnquist How does our circadian rhythm work?

But spending too much time indoors may be disrupting it.

The sleep-wake cycle is regulated by the body’s internal 24-hour clock – the circadian rhythm. Rosenberg How to use light to reset your circadian rhythm Learn how sleep apnea works, who it affects, and find out if you are in the risk zone.ĭr. Sleep apnea is a big deal: Why does sleep apnea occur and what are the risks associated with it?

Moon phase calendar for macbook