TL;DR
The Moon is an average of 238,855 miles (384,400 kilometers) away from Earth [1].
Distance and Scale
The distance between the Earth and the Moon is often underestimated. The average distance is about 238,855 miles or 384,400 kilometers. This vast space can be visualized by imagining that 30 Earth-sized planets could fit in between Earth and the Moon [1]. Additionally, all the planets in our solar system could fit within this distance, illustrating just how much "space" there is
[1:5],
[2:1].
Visual Representation
Photographic evidence, such as images taken by NASA's OSIRIS-REx probe, helps provide a visual understanding of the Moon's distance from Earth. These images depict the Moon and Earth at known distances, offering a nearly perpendicular perspective that accurately represents the actual distance [3:1],
[4:2].
Astronomical Context
In astronomical terms, the distance to the Moon is referred to as one Lunar Distance (LD), which is used as a standard unit of measure in space science [4:5]. The Moon appears surprisingly small in the sky, occupying only about half a degree, roughly the size of your pinky finger when held at arm's length
[4:1].
Moon's Movement
The Moon is gradually moving away from Earth at a rate of about an inch per year. This movement is due to tidal forces and will eventually lead to the Earth being tidally locked with the Moon, meaning the same side of Earth will always face the Moon [1].
Understanding the distance to the Moon not only puts into perspective the scale of our solar system but also highlights the dynamic nature of celestial bodies and their interactions over time.
Honestly does anyone perspective of the moms distance from Earth change after that? I mean that's real far away. Which is about what I would've guessed before reading this.
Are we talking about the earth’s mom or OP’s mom?
Fun space fact:
OP's mum is the only man made object actually visible from the moon.
please tell me we're not going to start measuring age through how far the moon has drifted from Earth since they were born, instead of how many times we've gone around the Sun?
See ya later moon, go hang out with Mars, see if we care. I'm not crying, you're crying.
If it makes you feel better the moon will stop drifting away once Earths rotation has slowed to the point that the Earth is tidally locked to the Moon. Which is to say the same side of the Earth will always face the same side of the Moon. The energy needed to move the moon away from the Earth, thus increasing it's gravitational potential energy, comes from Earth's rotation. Atomic clocks have measured the length of the day to be increasing 0.15 microseconds every year. So in ~8.28*10^12 'billions' of years the two will be tidally locked and the earth will rotate once every ~47 days. Fossil records suggest the length of day was only 6 hours on the early Earth. But the Sun will become a red giant and destroy the Earth before that happens.
> Atomic clocks have measured the length of the day to be increasing 0.15 microseconds every year. So in ~8.28*10^12 years the two will be tidally locked and the earth will rotate once every ~47 days.
I think your equation assumes a linear trend which I'm pretty sure isn't the case. But the overall idea doesn't change.
All the planets in our solar system could fit as well
I like how the premise of the article is "the universe is bigger than you thought" and all I can think is, that makes everything in it feel much tinier
The universe is big, the stuff in it is tiny. You are very tiny. Goodnight.
This has never been proven, mainly due to a lack of funding for research that involves placing Earth-sized planets between the Earth and Moon.
So the moon moved 2 and a half feet away since I was born.
Neat.
That’s why they call it Space, because there’s a lot of it.
Wow puts it all in perspective
If this doesn't prove earth is flat, i don't know what will 🤣
Nah
I still can't believe you can get every planet in the solar system in the space between earth n moon!
Found this in response to an r/askscience thread. It's the best photographic image I've seen that depicts just how far away the Moon actually is in relation to the Earth.
Image was taken by NASA's OSIRIS-REx probe on its way to the asteroid Bennu. The salient quality is we have known distances to both bodies (804,000 miles from Earth and 735,000 miles from the Moon), making them almost perpendicular to the line of sight, which in turn makes it a good representation of the actual distance between Earth and the Moon.
Now try to imagine/do the same with the Sun or other planets. Its practically impossible to show it in a picture. And then realise it's only our tiny solar system... other stars... bizar. Other galaxies.. mind boggling... the universe.. no words.
Yup - 30 Earth diameters from the Earth to the Moon. Now imagine being a microscopic astronaut leaving Earth 4x faster than a rifle bullet to bridge that gap.
Edit: CSM + LEM were about 6 meters long. Earth is about 6000 km in diameter, so spacecraft is about 1 millionth of the Earths diameter.
The way Apollo had to calculate trajectory manually and with minimal capabity computers. Amazing feat with no margin for error.
Found this in response to an r/askscience thread. It's the best photographic image I've seen that depicts just how far away the Moon actually is.
Image was taken by NASA's OSIRIS-REx probe on its way to the asteroid Bennu. The salient quality is we have known distances to both bodies (804,000 miles from Earth and 735,000 miles from the Moon), making them almost perpendicular to the line of sight, which in turn makes it a good representation of the actual distance between Earth and the Moon.
30 earth diameters between earth and moon
How does that ratio compare with other planet/moon pairs?
You can put each planet next to each other and they will fill the distance between the Earth and Moon, while space remains still in between.
The scale is Lunar Distance. The value is 1.
thats not very far.. what 4-5 inches?
It is a number of furlongs to the moon.
Yeah, but it's space inches.
What's mad is that if you'd never seen the moon in the sky before, going by this picture you'd expect it to look a lot smaller in the sky than it actually does.
The moon is actually surprisingly small in the sky, only about half a degree in size, which is about the size of your pinky finger when your hand is extended to arms length.
Well, it is to scale, for once.
r/earthforscale
Are you being serious?
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I got it right!! :)
Same, I knew it was 200-smtgK miles :)
At least a couple football fields
r/technicallythetruth
atleast five 5 feet
I was close but i thought it was in 400k and not 380k
The moon is roughly the same distance as Cleveland Ohio to Baja Hungary.
If anyone is wondering.
I am almost 40 and only due to this picture I realized the distance and the scale. Thanks!
Oh btw, you can fit every planet in our solar system in between the moon and the earth.
I think most people don't have an accurate conception of the scale involved, and the Moon is our closest celestial body!
And to think we shot a rocket toward the edge of that small speck, landed men on it, and brought them home is just amazing.
The moon seems big in the sky considering how small and far away it is. Knowing this you'd think it would be a small dot when you looked up.
Does the Earth's atmosphere act as a lense and that's why the moon appears closer?
Nope. It's more that it's the brightest thing in the field of view most nights and we're bad at estimating how big things are when there isn't a frame of reference nearby.
Hold a dime or nickel out at arm's length - that's actually how big the moon appears in the sky.
Found this in response to an r/askscience thread. It's the best photographic image I've seen that depicts just how far away the Moon actually is.
Image was taken by NASA's OSIRIS-REx probe on its way to the asteroid Bennu. The salient quality is we have known distances to both bodies (804,000 miles from Earth and 735,000 miles from the Moon), making them almost perpendicular to the line of sight, which in turn makes it a good representation of the actual distance between Earth and the Moon.
What hits me is that every planet, including Jupiter can fit in that space. It boggles my mind, and that tiny orb effects so much here on Earth.
Almost 3 Jupiters would fit in that space.
And to think that that tiny spec in space has enough density to affect currents in our oceans. Incredible
What's even more amazing is to think that you, me, every redditor on here, every person we've ever met in our lives, every place we've ever travelled to, every megacity, town, street, and blade of grass, is on that small little marble at upper left of the photo. (except for the handful orbiting in space, but they're only there temporarily for now anyway).
I mean it’s amazing that it looks so small in volume but has enough density to be able to exert a gravitational force on earth
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No, the distance from the moon to the earth is 39,483,852 km. The distance from the earth to the moon is 39,483,852 km. The moon is 39,483,852 km away from the earth.
The Moon is about 384,800 km away from the surface of the Earth. The surface of earth is about 20,800 km away from the Sun/sunspot area.
The distance between you moving at 1m/s and earth moving at 1m/s is about 17,800 km. So you would have to be moving at least 19,800 km to reach the moon in a single pass.
Wouldn't the distance between us and the moon be the same as the distance between us and the sun, or is there an additional factor?
There is no additional factor.
You can look at it from two angles.
Earth and Moon are at the same distance from the sun.
Earth and the sun are at the same distance from eachother.
The second one is the distance between the sun and the moon. To get to the sun, you have to move on the other side of the sun for a distance greater than the distance to the moon. The same distance can be achieved by moving on the same side of the moon.
This is true for your average person on the ground, but the moon has higher velocity than the Earth, as well as faster orbital speeds, so the distance between the two would increase by about the same factor. I'm not sure how far the orbital speed of the moon would increase with this, but it's definitely an increase.
No, the moon really does have much higher velocity than the Earth.
The average height of the earth's radius is about 12,400 km, and the moon's radius is about 3,000 km. The average surface of the earth is only about 1,800 km away from the sun, so the average distance between the earth and the moon is about 16,000 km. The difference between the average distance between the earth and moon (16,000 km) and the distance between the moon and the sun (3,000 km) is about 8 km.
The average height of the earth's orbital velocity is about 9,500 km. This means the average distance between the earth and the moon is about 3,800 km.
The average orbital velocity of the moon is about 12,700 km/s.
This means the average distance between the earth and the moon is about 6,100 km.
The average height of the moon's orbit is about 2.5 km/s. This means the average distance between the moon and the earth is about 2,300 km.
The average distance between the moon and the sun is about 1.7 km/s. This means the moon's orbit is around 0.4 km/s.
This means the average distance between the moon and the earth is about 1.2 km/s.
The moon is about 382,800,000 km away (1 AU, or 1 million km).
So, we're almost as far away as the Moon is from earth. I had been assuming that the moon was at or near the earth and was also considering this to be a fairly good distance. Thank you for explaining.
I've never heard about a distance called "an AU". Is that what we call it?
It's approximately 39,483,852 km (22.9 ly) away from you. That's about as far away as the Moon is from earth at its farthest point away.
To make this a reasonable question for the average redditor, let's make some assumptions.
Assume that the average redditor is not quite 6 feet tall. We'll call him 6'8".
Let's now assume that the moon is about 0.15 kilometers away from the earth.
If a person were standing in a room on earth and was standing on a chair (which would be about 0.35 kilometers from the earth), and the moon were a kilometer away, would the person (6'8") be able to see the moon, because it would look like his chair was about 1.25 km away?
TIL the moon is two inches away from earth
They’re called light inches
Damnit, you beat me to it
"The Expanse"
:)
I wonder what I was doing on earth when this photo was taken
The picture was taken September 25, 2017. It’s hard to make it out in the photo, but my guess is the land mass is Europe/Asia. It also appears to be a daytime shot and there is no terminator line so if I’m right it’s around noon in Kyrgyzstan which is the most central part as far as I can tell. I don’t know where you live, so I can only guess. I’d say sleeping, eating or enjoying your own company...if you catch my drift. Maybe all three at the same time, but I’m not here to judge. You do you.
I was playing Destiny that day because I was disappointed they had not made an anniversary edition of Halo 3, as that was Halo 3's 10 year anniversary, which they had done for Halo's 1 and 2.
Look! The earth isn't flat! ��
The picture is flat, which means the objects in the picture are flat.
Checkmate scientists.
Cats are the proof That the Earth is not flat. If the earth would be flat cats would have pushed everything off by now
Found this in response to an r/askscience thread. It's the best photographic image I've seen that depicts just how far away the Moon actually is.
Image was taken by NASA's OSIRIS-REx probe on its way to the asteroid Bennu. The salient quality is we have known distances to both bodies (804,000 miles from Earth and 735,000 miles from the Moon), making them almost perpendicular to the line of sight, which in turn makes it a good representation of the actual distance between Earth and the Moon.
Plan a trip to Sweden and show them this. https://en.wikipedia.org/wiki/Sweden_Solar_System I would do the Sun to Mars on day 1. Plan the rest of the holiday around the rest, only 950Km. Would be a great holiday.
A 29 year old was curious about this too. Google says:
On average the moon is 380,000 km (235,000 miles) from the Earth, a distance of about 110 times its own diameter. A tennis ball (moon) would then have to be 110 x 6.7 cm = 7.37 meters (about 24 feet) from the basketball (earth).
google never disappoints LMFAO
that is no moon, but a fully operational battle station
Isn’t there like a echo commercial where this literally happens?
"Imagine the longest car ride you've ever taken. Now imagine being in that car for three years before you can get out"
Perfect!
Point out how much of their lives three years is. For instance, for a 6 year old that's half your lifetime.
how far away is the moon?
Key Considerations:
Average Distance: The average distance from the Earth to the Moon is about 238,855 miles (384,400 kilometers).
Orbital Variability: The Moon's distance varies due to its elliptical orbit. At its closest (perigee), it can be about 225,623 miles (363,104 kilometers), and at its farthest (apogee), it can be about 252,088 miles (405,696 kilometers).
Light Travel Time: Light from the Moon takes approximately 1.28 seconds to reach Earth.
Takeaway: While the average distance is around 238,855 miles, keep in mind that this distance can change slightly depending on the Moon's position in its orbit.
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