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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.
Gene Cernan on the Moon in the Apollo 17 lander with lunar dust stuck on his suit. Lunar dust is highly abrasive and can cause damage to human lungs, nervous, and cardiovascular systems. [1] Lunar habitation is any human habitation on the Moon. [2] Lunar habitation is provided by surface habitats, possibly as part of a moonbase. [3]
This is called major lunar standstill. Around this time, the Moon's declination will vary from −28°36′ to +28°36′. Conversely, 9.3 years later, the angle between the Moon's orbit and Earth's equator reaches its minimum of 18°20′. This is called a minor lunar standstill. The last lunar standstill was a minor standstill in October 2015.
Lunar dust, also known as regolith, is a pervasive challenge on the Moon. The fine particles can be abrasive, cling to surfaces, and pose risks to equipment and human health.
The lunar standstill is when the northernmost and southernmost moonrise and moonset are farthest apart. ... One clue was the fact that archaeologists have found cremated human remains clustered in ...
The experiment Suite has three science goals: determine mechanisms of solar wind mass and energy transport; characterize energy, topology, and ion composition in the deep magnetotail; and establish observational capabilities of an on-board pathfinder payload measuring local space weather to support deep-space and long-term human exploration.
The Lunar Architecture Study's purpose was to "define a series of lunar missions constituting NASA's Lunar campaign to fulfill the Lunar Exploration elements" of the Vision for Space Exploration. [9] The result was a basic plan for a lunar outpost near one of the poles of the Moon, which would permanently house astronauts in six-month shifts.
A concept for a lunar base that would allow humans to establish a permanent presence on the Moon (ESA) ... is a “large paradigm shift” coming over the next decade for the lunar economy. A ...