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When the Sun and Moon are aligned on the same side of the Earth (conjunct), the Moon is "new", and the side of the Moon facing Earth is not illuminated by the Sun. As the Moon waxes (the amount of illuminated surface as seen from Earth increases), the lunar phases progress through the new moon, crescent moon, first-quarter moon, gibbous moon ...
August's full moon, a rare blue moon and supermoon, is lighting up the night sky this week. ... By Monday, 100% of the moon's nearside will be illuminated and about 99% of it will be illuminated ...
Shadows and detail are most pronounced along the "terminator", the dividing line between the illuminated (day side) and dark (night side) of the Moon. It is a common misconception that the moon is not visible during the daytime, although if the moon is a thin crescent or close to the Sun, viewing can require using a telescope.
Earth also reflects light onto the Moon, observable at times as Earthlight when it is reflected back to Earth from areas of the near side of the Moon that are not illuminated by the Sun. Since the Moon's axial tilt with respect to the ecliptic is 1.5427°, in every draconic year (346.62 days) the Sun moves from being 1.5427° north of the lunar ...
The next monthly blue moon is on May 31, 2026 and the next seasonal blue moon will fall on May 20, 2027, with dates varying depending on time zone. "Hail and Farewell": A tribute to those we lost ...
The “Wolf” Moon, the widely used name for the year’s first full moon, is expected on January 13, reaching peak illumination at 5:27 p.m. Eastern time, according to the Farmer’s Almanac.
The full moon is the lunar phase when the Moon appears fully illuminated from Earth's perspective. This occurs when Earth is located between the Sun and the Moon (when the ecliptic longitudes of the Sun and Moon differ by 180°). [3]
The Moon rises 30 to 70 minutes (should be a fixed number, about 50 minutes, if it's the same 13 degrees) later each day/night than the day/night before, due to the fact that the Moon moves 13 degrees every day. Hence, the Earth must move 13 degrees after completing one rotation for the Moon to be visible.