Where is planet Earth and the solar system located?

Answer 1

The heliocentric model is the one that has the Sun at the centre and the Earth the third planet out. We don't use the heliocentric model of Copernicus with its circles and epicycles, that was superseded by Kepler's model, but we still have the Sun at the centre.

Answer 2

In the most famous geocentric model devised by Ptolemy, the Sun goes round the Earth outside the orbits of the Moon, Mercury and Venus.

To enable Ptolemy's model to model the positions of Mercury and Venus correctly, they both follow circular orbits with large epicycles which 'take out' what we now understand is the Earth's circular orbit round the Sun.

Extra epicycles were added in Ptolemy's model to account for what we now understand as the eccentricity of the elliptical orbits and their slight inclination to the plane of the Earth's orbit.

Ptolemy's model was complicated but it only had to explain the observed positions of the planets, it did not have the additional modern requirement of giving a physical explanation of the planets' orbits. The modern theory uses Kepler's system of elliptical orbits with the Sun at the centre, backed up by Newton's detailed physical explanation of what is happening through the force of gravity and the laws of motion.

Answer 3

3rd planet from the Sun, roughly 98,000,000 miles.

Answer 4

The solar system with the Earth is in the Perseus arm of the Milky way Galaxy about 30 000 light years away from the center of the galaxy.

Answer 5

Earth is the 3rd planet from the first.

It is approx. 93,000,000 miles away from the Sun.

Answer 6

At the center - of everything.