It would depend on the size of the telescope.
Venus is about the same size as the Earth, but has a much higher albedo, meaning that it reflects a greater percentage of light that Earth does. Venus is also closer to the Sun, which means that the sunlight it does receive is more intense. Still, Venus reflecting the Sun's light from 160 million miles away is STILL the third-brightest object in the sky, after the Sun and Moon.
We can easily see Saturn from Earth, even though Saturn is much farther from the Sun and doesn't receive as much light. So I think we'd be safe in saying that the Earth would be a naked-eye object from anywhere in the solar system.
However, from any further away than Neptune, the angular distance between the Sun and the Earth would be pretty small; it would be like trying to pick out Mercury, which is tough to do.
number the planets farthest to closest to earth
The farthest distance between Earth and Mercury is when they are on opposite sides of the Sun, which can be up to 221 million kilometers (137 million miles) apart. This phenomenon is known as superior conjunction.
The third farthest planet is Saturn. The first farthest is Neptune.
No matter where earth and Neptune are in their orbits about the sun, Neptune will always be the furthest planet from us. The reason is that the distance between Uranus and Neptune is much greater than the distance between the earth and sun.
The point at which the moon is farthest from Earth is called apogee. It occurs when the moon is at its maximum distance in its elliptical orbit around Earth, approximately 252,088 miles (405,500 kilometers) away.
The distance to the farthest visible star from Earth is about 9,000 light-years.
number the planets farthest to closest to earth
About 162 million miles
distance from earth farthest star
2000 feet away
Neptune is the remotest of the eight planets, and its distance is 30 astronomical units, which means its distance from the Sun is 30 times the Earth's distance from the Sun.
The farthest distance between Earth and Mercury is when they are on opposite sides of the Sun, which can be up to 221 million kilometers (137 million miles) apart. This phenomenon is known as superior conjunction.
That point in the moon's orbit is called the "apogee".
The third farthest planet is Saturn. The first farthest is Neptune.
No matter where earth and Neptune are in their orbits about the sun, Neptune will always be the furthest planet from us. The reason is that the distance between Uranus and Neptune is much greater than the distance between the earth and sun.
The distance between the moon and the Earth varies from around 356,400 km to 406,700 km at the extreme perigees (closest) and apogees (farthest).
There is no such distance. Gravity has no limit. There are forces of gravity between the lint in your pocket and the smallest grain of sand on the farthest beach on the other side of the farthest planet, in orbit around the farthest star, in the farthest galaxy from Earth. Of course, the farther apart two objects are, the less the gravitational forces between them are. But the forces are still there.