Questions tagged [moon]
For questions that relate to Earth's natural satellite.
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Im trying to find a formula to calculate Earths radius/ diameter by horizontal cross section to see what effect that has on size of the moon appears
Todays Biue Moon (that wont happen again til 2036) is the biggest brightest and closest the moon is to Earth
Im trying to determine how it appears at ones given latitude.Obviously the closest one is ...
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Relay structures in Rupes Recta
Rupes Recta is a 110km long normal fault on the Lunar nearside. It appears to contain features that resemble terrestrial relay ramps. Is this the case or is it something else?
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Why was quartz not a major product of the Lunar Magma Ocean?
Fractional crystallisation generally makes magma more silicic. Why was a substantial quartz layer not a product of the stratification of the Lunar mantle?
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Reason behind diurnal tides
I know that an area has a diurnal tidal cycle if it experiences one high and one low tide every lunar day. Many areas in the Gulf of Mexico experience these types of tides. I read that:
Diurnal tides ...
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Does the Moon affect earthquakes?
Does the Moon, through factors like its location (if it is at an apsis i.e closest point or furthest point in its orbit) or some changes in density, affect earthquakes on the Earth?
Earthquakes are a ...
user27902
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What would be the effect of a geostationary moon?
What kinds of differences from our Earth would we see with a moon in a geostationary orbit over the equator? Assuming the gravitational pull is roughly the same as it is with ours (my back of the ...
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Calculate original volatile content of a degassed mineral
A lunar apatite sample has a relatively low OH content of 5 ppm, but a an elevated D𝛿 of 11,000‰ (vs. SMOW). Assuming that water had an original figure of around -100‰ or so, how do I estimate the ...
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Why is the Lunar crust anorthite?
The primordial Lunar crust is mostly calcic plagioclase. However, why did the Lunar Magma Ocean produce so much anorthite, why not a feldspar of a different composition, like albite or orthoclase for ...
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What does fugacity mean in the context of geology?
I am reading about water in the Lunar mantle, however it mentions fugacity a lot. What does it mean in this context?
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What is the difference between a depleted mantle, and a fertile or enriched mantle?
In a paper about the interior of the Moon, it references depleted mantle sources and enriched mantle sources. Sometimes the latter is referred to as 'fertile'. What is difference between the first two?...
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What would the approx. min and max temperatures be for Snowball Earth with no atmosphere?
I saw a similar previous question on this website about the temperature of the Earth with no atmosphere. It sounds like if the Earth did lose its atmosphere we’d end up with either Snowball Earth or ...
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What is the elevation angle of sun at lunar poles?
The Moon's orbital plane is inclined by about 5.1° with respect to the ecliptic plane, whereas the Moon's equatorial plane is tilted by only 1.5°.
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Does the Sun and Moon basically appear to "move on the sky" identically regardless of location and date? [closed]
For a long time, I've been trying to use Stellarium (simulation) and many visualizations and animations in order to get a good idea of how the Sun and Moon move across the sky, as seen by a human from ...
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How to make a Python function return the Moon's gravitational force (acceleration) to calculate orbits?
The Space SE question How much does it cost to land on a lunar mascon? includes the background information below. I am sure it's not too hard to find a link where spherical harmonic coefficients for ...
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How do they get "deep lunar mantle" samples?
Phys.org's Study suggests Earth and Moon not identical oxygen twins says
They found that the oxygen isotopic composition varied depending on the type of rock tested. This may be due to the degree of ...
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