Why is it impossible to observe the actual movement of the stars?

Answer 1

If you mean, to observe it: Pluto is fairly faint, and needs a telescope of 40 cm or so to be able to see it at all. A typical home telescope might have 5-10 cm, but astronomers often have access to much larger telescopes, up to several meters.

Answer 2

Because they are so far away.

(The moon ... the closest natural body to Earth ... is moving in its orbit at

something like 2,300 miles per hour relative to us, but even the moon is

so far away that we don't notice its actual motion.)

Answer 3

But you do see planets in the sky!

If you know where to look, and when, you can see Mercury, Venus, Mars,

Jupiter, and Saturn. Mercury is somewhat difficult, but the others are easy.

Chances are you've already seen one or more of them, but you thought

it was just a bright star.

Answer 4

the moon does not spin

THE MOON DOES'NT ROTATE ON ITS OWN AXIS AND THE TIME TAKEN BY THE MOON TO COMPLETE ONE REVOLUTION IS EXACTLY THE SAME TIME TAKEN BY THE EARTH TO COMPLETE ONE ROTATION AROUND ITS OWN AXIS

or the moon's gravity holds it in the same position as it revolves around Earth

Answer 5

For the same reason that a jet plane in the sky seems to be going so slow,

when it's actually covering ground at over 300 miles per hour. The farther

away a moving object is, the slower it seems to be moving.

Even the moon ... moving in its orbit at over 2,000 miles per hour ... hardly

appears to be moving. And the nearest star is more than 100 million times

as far from us as the moon is !

Answer 6

Tidal forces have over time caused the moon and earth to slow down resulting in tidal locking. The result is that the moon always faces the earth. The other side will permanently face away from the earth and thus not visible from here. To see the far side of the moon, you need to travel around the moon. Contrary to common myths, the far side of the moon is not dark, but receives same amount of sun light as the side visible from earth.

Answer 7

The moon is tidally locked, that means that moon takes as long to spin around the earth as it takes to rotate around its axis. The same bit of moon is always facing the earth.

Note: the far side of the moon isn't always. It's got day and night, just like the near side. When the far side is fully lighted, we just don't see the moon, because this is called a New Moon.

Answer 8

Out at the far fringes of our solar system Neptune is sometimes the second to the last planet. Its average distance from the sun is 2,788,000,000 miles (4,486,100,000kilometres. That's more than 30 times Earth's distance from the sun. Neptune can't be seen without a telescope.

As Neptune and Pluto go around the sun they switch places. Every 248 years Pluto moves inside Neptune's orbit for about 20 years. During this 20 year period Neptune becomes the last planet from the sun. Pluto entered Neptune's orbit on January 23, 1979 and remained there until March 15, 1999

Hope this answered your question

Answer 9

Because compared to the moon, the rover is tiny.

Also...

Even when the astronauts were orbiting around the moon itself they couldn't see it. The moon is bigger than we imagine it to be, and is about the size of the US and is a little larger than Australia. These measurements refer to the whole moon, but what we can see on a full moon is only half of the moon's surface.

The moon is nearly a quarter million miles away, and for the record is about 2161 miles across.

The Rovers were only a few feet long.

Due to Earth's atmosphere, no Earth telescope, no matter how large, could see it. Even the Hubble can't see it at that distance... it would have to be 300 feet long for the Hubble to see it, as Hubble was designed for seeing HUGE things like galaxies, very far away.

Photographs have been taken of the Apollo sites, clearly enough to spot the Rover, see the footpads of the LM, and even, in some cases, make out the paths the astronauts made as they walked around. These were taken by Moon orbiters of various countries, while they were measuring the moon's terrain. I am leaving some links that might interest you.

Answer 10

extrasolar planers are not bright compared to the stars they orbit

For approximately the same reason that it's difficult to spot a mosquito

circling a street light that is 5 miles away, with a telescope.