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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.
ELP gives a series expansion of the orbital elements and the coordinates of the Moon.The authors refer to it as a "semi-analytical" theory because they developed their expressions not purely symbolically, but introduced numerical values for orbital constants from the outset; but they also constructed partial derivatives of all terms with respect to these constants, so they could make ...
LRO mosaic. Giordano Bruno is a 22-kilometre (14 mi) lunar impact crater on the far side of the Moon, just beyond the northeastern limb.It lies in an area that can be viewed during a favorable libration, although the area is viewed from the side and not much detail can be seen.
At the minor lunar standstill, the Moon will change its declination during the tropical month from +18.3° to −18.3°, for a total range of 37°. Then 9.3 years later, during the major lunar standstill, the Moon will change its declination during the month roughly from +28.6° to −28.6°, which totals 57° in range.
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]
Reiner Gamma (γ) is a geographical feature of the Moon known as a lunar swirl.It is one of the most visible lunar swirls from Earth, visible from most telescopes. [1] It was originally thought to be a lunar highland, but scientists eventually realized that it cast no shadow on the moon.
A total lunar eclipse occurred at the Moon’s descending node of orbit on Friday, July 27, 2018, [1] with an umbral magnitude of 1.6100. It was a central lunar eclipse, in which part of the Moon passed through the center of the Earth's shadow. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened ...
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