Questions tagged [the-moon]
Questions regarding Earth's only natural satellite. For questions about the natural satellites of other planets, use the tag [natural-satellite].
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What would be the difference in distance between earth and moon on supermoon night (14 November 2016)
As we all know the usual distance between earth and moon is 384,400 km.
But i was thinking how much closer it will be on 14 November 2016, as it will be a supermoon, the brightest and biggest moon in ...
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The relation between the light of full moon and the distance between the sun and the earth
If we want the full moon to be 2 times more bright,how we should change the distance between the sun and the earth?
Thanks for your help.
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How to get from the earth to another planet/ the moon? What happens on the way? [closed]
I have a problem explaining for my students how to get from the earth to the moon? Is there someone who can give a good explanation?
I Think these are words that might be included. Escape velocity, ...
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Help plotting a trip to the Moon! [closed]
Take me to the moon!
I know this is literally rocket science but, I would like any sources or formulas that would help me plot a trip to the Moon. I'm not sending anything, nor do I ever plan to, I ...
user7914
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Why doesn't the Moonrise appear red when viewed from orbit?
After searching through many videos, I finally found one that shows, from the perspective of low earth orbit, the Moon transiting the horizon. It is actually a Moonset, but it shouldn't make a ...
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Accidental or deliberate? [duplicate]
We know that the visual size of the Sun and Moon from the Earth in our lifetime (!) is nearly equivalent.
Now my question: Is this event is random? Or have a scientific reason?
For example, maybe ...
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How much do the mascons on the moon affect surface gravity?
The gravity anomalies on the moon (generally accepted to be caused by mascons) are powerful enough to affect the orbit of satellites. I'm trying to determine how much effect they would have on a ...
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Conversion of Moon's Celestial Position (RA and dec) to Horizontal Coordinates [closed]
I'm currently attempting to calculate the equatorial sky position of the Moon for any given Geostatic position (longitude / latitude) for any given datetime.
I have tested my altitude and azimuth ...
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Right Ascension to Zodiac House
At the moment (01-04-2020 09:36) the Moon is situated in Gemini:
"The Moon is currently in the constellation of Gemini. The current Right Ascension is 06h 37m 56s and the Declination is +23° 42' 09”."...
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Astronomical events and Celebrations
In the past people celebrated important astronomical events and some of those events are still celebrated in some cultures and traditions.
For example: March/September equinox, New Moon, Winter/...
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Nodes and declinations of Moon
This nice page from NASA has the possibility to create an astronomical events calendar for a certain period. I tried to do that for the year 2017 for Central Europe. What comes out puzzles me:
On ...
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How can I calculate when the new moon will be observed from a particular meridian?
I have read that Chinese months start on the day on which the new moon is observed from the 120th meridian east. From this I am assuming that the new moon is observable from there each time and that ...
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Why is the Lunar Node in a daily motion?
I've read a lot about the Lunar Nodes online (on Wikipedia, astro.com and a bunch of other websites), but there is one thing I cannot figure out and the sources don't seem to clearly explain: why are ...
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Appearance of the Cresent [duplicate]
Does the latitude of your position on earth change the appearance of the cresent like it changes the position of other objects visible in the sky? Does it rotate it?
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LLR & Orbital Motion
As I understand it, light that is emitted from a source is not imparted with the motion of the source and so always follows a "straight line". If this is correct, I am having a difficult time ...
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Lunar Inclination
Are there published tables for Lunar Inclination?
I am interested because I believe this determines the degree of "Diurnal Inequality" of tides. There are tons of publishes tables of tides ...
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Where is the Moon for the last five or six days? [duplicate]
The date today is March 18th 2021 Thursday it's 6:00 p.m. I'm in the area of Sarasota-Bradenton Florida. I haven't seen the moon and it's been clear skies for roughly the last five or six nights... I ...
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Accelerations on the Moon due to its orbit and its spin
A gyroscope is placed on the equator of the Moon. It detects among others 2 accelerations: one due to the orbit and one due to the spin. What is the module of the second one compared to the first one?
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How does one go about naming a lunar crater? [duplicate]
Suppose I discover an uncatalogued crater on the lunar surface, and decide to name it. How would I submit my proposed name to the IAU?
jw01
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How do I calculate the elevation angle to the horizon?
I'm creating an app to visualize the southern area of the moon from a first-person perspective. I'm trying to determine if a point on the surface is a "checkpoint," where the elevation angle ...
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Does the new moon appear at the same time around the world or in one region last [duplicate]
My query is basically, say for example if the new moon is seen in the Middle east region, does it mean that it was the day of new moon in sub continental country as well ? You can't have a new moon in ...
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What is the degree of reflection of light from sun to the moon? [closed]
As Moon reflects the light from the sun it must have an ANGLE OF INCIDENCE and ANGLE OF REFLECTION...
What Is the angle of reflection then?
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Moon is a planet by "Clearing the neighborhood" condition?
Whether the Moon (Earth's natural satellite) is a planet is an old debate in planetary science.
Though I do not agree that Moon is a planet, I found something difficult to clearly understand.
...
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What if Earth’s moon started rotating?
Hypothetically speaking, what might happen to Earth if one day the moon became un-tidal locked and started to rotate?
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Why and how the Moon experiences only slight tidal forces [closed]
I understood the literal meaning of the red-underlined sentences, but frankly speaking, I don't know the processes. I mean I want to know how Earth's rotation makes a cycle of two high and two low ...
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Tidal locking of Moon [duplicate]
Since our Moon is tidally locked with earth, we always see only one side of the Moon. In such a case, how and when did mankind first realize that the Moon is also revolving around its own axis? or for ...
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Why the time that the moon orbits the earth is becoming shorter and shorter?
I read in past that the time that the moon orbits the earth is becoming shorter constantly? (0.3 seconds per 1000 years)
and what is the simple astronomical explanation?
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Moon changes position
So most nights the Moon usually rises on the right of the sky when I look through the window just like the previous night.
But this night the Moon was on the left of the sky rising. Does anyone know ...
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Why is the shape of the Moon spherical? [duplicate]
The Moon does not rotate on its own axis. If I am right, for something to gain a spherical shape it has to rotate on its own axis. We know that the Moon does not rotate on its own axis. How can this ...
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Recurrence of Moon at Virgo's "feet"
A friend of mine saw a video that claimed the moon appears to be at the feet of the constellation Virgo about once every 17 years with its next occurrence being in September 2017. Is there any ...
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Sunset moonrise what happens in between?
Here in south London I have just seen that the sun will set at 16:45 hrs but the moonrise does not happen until 2hrs later 18:45 hrs what is happening in this two hour void, will it be too dark to see?...
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Apparent Magnitude of First quarter Moon [closed]
Given
Apparent magnitude of moon is -12.5.
Distance of moon and earth is 384400 km.
Diameter of Moon is 31 arcmin.
Phase of moon is 0.5.
Find the apparent magnitude of first quarter moon.
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How moon north/south nodes can be calculated
If the planetary geocentric position of the moon is known (say, longitude
"254°31'35"") is it possible to calculate such position for north/south (ascending/descending) moon nodes? Or what else needs ...
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Is it possible the Nebular Hypothesis and Planetesimal Theory are not correct? [closed]
For almost 3 centuries now the Nebular Hypothesis and Planetesimal Theory have become the preeminent explanations for how the Solar System and Planets evolved. Yet there is still no explanation for ...
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Why is the moon so large in this picture from Athens
I don't undertand why the moon can be that big a few hundred miles sout of where I am in London...
And when I went to Greece, even Africa, the moon wasn't so large...
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Super moon or Super lag? [closed]
On Sep 25 2015 in California, at 8pm the moon was observed between 11 o'clock and 12 o'clock position in the sky.
On Sep 26 at 8pm at the same location the moon appeared roughly between 11 o' clock ...
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Where is the Moon?
I live in Western Australia and I have not seen the moon for almost a solid week. Last I saw it it was almost full, and the sky has been clearer than ever with all the stars bright and visible yet the ...
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spin–orbit resonance, between moon and the earth
if this happens in the future what will be the consecuences of this?.
Consecuences for the life or the climate conditions.
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Telescope question [closed]
During the daylight, you hold a ruler in a distance of 60 cm away from your eyes, and you find
the size of the Moon to be 0.55 cm (try it yourself!). At night, you use a telescope to observe rock
...
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Why is the Moon's volume so small compared to the Earth's?
The Moon has 27.3% of the Earth's radius/diameter but only 2% of the Earth's volume. I don't quite get it why the Moon's volume is that small despite having more than a quarter the 2-dimensional size ...
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Help me better understand how the plane of Moon's orbit around Earth behaves
Is the plane in which Moon orbits around earth, inclined with respect to earth's equatorial plane? If yes, is it constant or does it change with time? If it changes, how much time does it take to make ...
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How far away does the Moon have to be until Earth doesn't feel its effects? [closed]
How far in miles does the Moon have to be for the Earth not to feel its effects?
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What is this object in this photo? [closed]
i took it and i don't know what planet or star is this and also there's our moon
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Moon trip in 1969 and temperature [closed]
The USA claims to have traveled to the moon in 1969.
BUT...
The temperature on the moon at day is 100 C and at night is -173 cold. How did the astronauts not die??
How did they survive?
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Is it possible for the Sun and the Moon to crash into each other? [closed]
Is it possible for the Sun and the Moon to crash into each other?
If yes, under what conditions? If no, why?
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Why is the moon tidally locked with the earth?
Why the moon is tidally locked with the earth? What is the reason for the tidal locking of the moon with the earth? What causes tidal locking?
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Given this report, you can see why people may think the moon landings were fake? [closed]
I was reading today that, in research published in The Astrophysical Journal, molecular oxygen has been discovered in the Markarian 231 galaxy, 561 million light-years from Earth. A light-year, which ...
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The Hollow Moon Story [closed]
I've heard on various programs (yes TV) with "supposed" experts in various fields that there is evidence which would suggest that the moon could be hollow. The experts ranged from scientists, sound/...
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What are the Gamma rays and Cosmic rays effects on humans and equipments? [closed]
First of all not to consider me a conspiracy theorist, but isn't landing on the moon a questionable issue? I am really not an expert in astronomy but let's assume that a moon landing has happened.
1- ...
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Why aren't people going to The Moon any more? [duplicate]
In 1969 America landed on the moon, and at that time our technology was not as good as it is now. So my question is, we have much more advanced technology than in 1969, so why are we not utilising ...
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