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A lunar phase or Moon phase is the apparent shape of the Moon's directly sunlit portion as viewed from the Earth. Because the Moon is tidally locked with the Earth, the same hemisphere is always facing the Earth.
It was the first time that a Chinese lunar probe directly entered an Earth-to-Moon transfer orbit without orbiting the Earth first. [24] After the launch, Chang'e 2 arrived in its lunar orbit within 4 days and 16 hours. Later, the probe lowered its orbit to 100 km (62 mi), with a perilune of 15 km (9.3 mi). [25]
In lunar astronomy, libration is the cyclic variation in the apparent position of the Moon that is perceived by observers on the Earth and caused by changes between the orbital and rotational planes of the moon. It causes an observer to see slightly different hemispheres of the surface at different times.
In lunar calendars, a lunar month is the time between two successive syzygies of the same type: new moons or full moons. The precise definition varies, especially for the beginning of the month. Animation of the Moon as it cycles through its phases, as seen from the Northern Hemisphere. The apparent wobbling of the Moon is known as libration.
The event took place near lunar perigee; as a result, this supermoon was referred to in US media coverage as a "super flower blood moon", [Note 1] [4] [5] and elsewhere as a "super blood moon". [6] [7] This lunar eclipse was the first of an almost tetrad, with the others being on November 19, 2021 (partial); May 16, 2022 (total); and November 8 ...
The lunar nodes are the two points where the Moon's orbital path crosses the ecliptic, the Sun's apparent yearly path on the celestial sphere.. A lunar node is either of the two orbital nodes of the Moon; that is, the two points at which the orbit of the Moon intersects the ecliptic.
Lunar eclipses are grouped by their saros number, each series lasts between 1200 and 1600 years and contains from 69 to 89 lunar eclipses.Lunar eclipses in even series exist at the ascending node of the Moon's orbit, and odd series occur at the descending nodes.
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Friday, June 5, 2020, [1] with an umbral magnitude of −0.4036. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's ...