which is bigger the sun or the moon?
138619
it all depends of what sun and what moon ur talking about the smallest suns in the universe are call red dwarf an are very common in the universe they  are a fifth of our suns size. there is also several gigantic planets as 70 virgins which is 6.6 times bigger than Jupiter so it is highly possible that at least one of those million of gigantic planets may have a moon bigger than a red dwarf
602871
If you read an astronomy text book, you will see that the Moon and the Sun are capitalized.  When I studied astronomy, I was trained to do so as well.  This is to differentiate between the object called the Moon and another moon, like Phobos, which is a moon of Mars.  \n\nThe Moon and the Sun have other names as well.  SF writers will refer to Luna and Sol when people live on the Moon or travel outside our solar system.  "Oh, I'm from Terra, Sol 3A, but my wife was born on Luna, Sol 3B."\n\nThe problem is a historical one.  We called this planet the Earth and its major sky-lights the Sun and the Moon when we didn't know that there were others.  It's hard to break a millenia-old habit.
491318
in relation to the other planets in our solar system... our moon is bigger than pluto but smaller than the other planets.\n\nin relation to other moons of other planets in our solar system... it is the 5th largest out of all the other planetary satellites.\n\nthe exact figures are at the link below:\n-(this other link might help as well)
354168
the "smart kid" is incorrect about the size of the sun.  It is only 109 times larger than the planet earth.  The Sun's diameter is 864,938 miles (1,391,980 km). This is almost 10 times larger than the planet Jupiter and about 109 times as big as the Earth. The volume of the Sun is 1,299,400 times bigger than the volume of the Earth; about 1,300,000 Earths could fit inside the Sun.
1027317
You mean the moon and the sun, which is true\nsometimes, but there are also eclipses where\nthe moon is smaller than the sun, so a small\nring of light is left uncovered (called an annular\neclipse)...\n\nBy a stroke of amazing coincidence, both the\nmoon and the sun are approx 108 times as\nfar from the earth as their diameter, so they\nappear the same size in the sky... 108 is a\nmystic number in spirituality, so I doubt if this\nis really a coincidence!
1112620
Earth.  But one of them is not a true moon.  It's only a temporary one.
95739
Because of their distance... The sun looks as big as the moon from our point of view because the sun, even though it is a LOT bigger than both the earth and moon, is very far from the earth, thats why it looks so small... just the same as you see a person approaching you from afar..
280642
It is a coincidence.\n\nThe sun is much larger than the moon (~400 times), and yet the moon is much closer than the sun (~400 times).\nIt is remarkable coincidence that right now, as seen from the Earth, both the moon and the sun appear the same size.\nIt will not stay this way forever, the moon is very slowly moving away from the Earth, eventually it will get far enough away that it will look smaller than the sun and there will be no such thing as a total solar eclipse.
536217
The Moon's mass is less but you're closer to the centre.   Gravity goes up as the square of your distance from the centre.
1087183
The moon has a side that always faces us! That's not always filled with light though. That's why we have phases of the moon.
906326
Parallax.  By coincidence, the Sun is about 400 times as far away as the Moon and also 400 times the diameter, so it appears about the same size.  If I see a total solar eclipse here in NZ, then anywhere else in the world, the Moon won't be directly in front of the Sun.  For instance, the 1999 total eclipse of the Sun started in Nova Scotia.  Before that, it was only visible from space.   The path of totality crossed the Atlantic, Europe, Turkey, the Middle East, Iran, India and then left the surface of the Earth again.
171969
In a solar eclipse, we see a shadow pass over the face of the sun. In a lunar eclipse, we see a shadow pass over the face of the moon.
591541
While refraction by the atmosphere is too small to affect the apparent diameter of the moon except perhaps when it is within one diameter of the horizon (and in this case, the moon will appear stretched a bit in the direction perpindicular to the horizon) it does appear larger to our brains when on the horizon because we see it in reference to distant large objects.  Gives the impression of it looking bigger, however if you could look straight up at the moon, and see a bunch of trees a mile up in sky between you and the moon it would look just as large as when it is near the horizon.  (If you ever do see this by the way, seek shelter or psychiatric treatment immediately!)\n\nThe moons orbit IS elliptical, however, and at times will be closer to the earth than others.  This phenomenon is called "lunation" and there is a great still and a gif animation of this at the Astronomy Picture of the Day.\n\nhttp://antwrp.gsfc.nasa.gov/apod/ap041021.html\nhttp://antwrp.gsfc.nasa.gov/apod/ap991108.html\n\nThe moon's surface brightness (brightness per area) also varies with phase. Because larger particles tend to reflect a bit more light directly back at the light source than in other directions (look up "Mie" scattering) a given bit of the moon will appear brighter when the earth is in the direction of the sun as seen from the moon. (All three are in a line with the Earth more or less between). This occurs when the moon is full or near full. This brightening might make the moon look larger.
158060
The moon is known as the moon, but there are also other names given to it such as: Luna by the Romans and Selene and Artemis by the Greeks. It is also known as one of Earth's satellite. It is the second largest object in the sky and orbit 384,400km from the Earth. Its diametre is 3,476km and it has a mass of 7.35kg. As far as I know there are no other name for the earth's moon persay.
380337
The sun reflects from the surface of the moon just as it does from the surface of the earth, as viewed from outer space.  Everything we can see is due to the sun reflecting the light from it, such as mountains or desert in the distance.
58227
No.  The moon would alwayd be full if you were on the sun, because the sun's light illuminates the moon.  You would, howvere, be able to see the side of the moon that is never possible to see from the earth (which we incorrectly call "the dark side of the moon").
530453
Aside from the obvious size difference (109 times in diameter) the sun is made up of Hydrogen and helium, while the Earth has much heavier elements, the surface of the sun is as hot as the core of the earth, and is very, very bright.\n\nEarth                   \n\nVolume___________1.08 X 10^12 Km^3       \nSurface Area_____5.1 X 10^8   Km^2       \nMass_____________5.97 X10^24  Kg         \nGravity__________9.8 m/s^2\nSurface Temp.____-88-58 degrees C       \nCore Temp._______6226.85 degrees C\nChemical makeup__98% nitrogen and Oxygen (atmos.)         \n\nSun\n\nVolume___________1.41 X 10^18 Km^3\nSurface Area_____6.09 X 10^12 Km^2\nMass_____________1.98 X 10^30 Kg\nGravity__________273.95 m/s^2\nSurface Temp.____5506 degrees C\nCore Temp._______4.99 X 10^6 C\nChemical Makeup__98% Hydrogen and Helium\n\nThe sun is 332,590 times more massive than Earth.