Mars of course.....
Earth is 1 AU from the Sun. There is no planet at an orbit of 2.5 AU. (Mars orbits at 1.5 AU and Jupiter at 5.2 AU).
Jupiter is the fifth planet from the Sun, located about 4.95 astronomical units (AU) away. This is 483,800,000 miles and 778,500,000 kilometers.
The Earth. Why would they chose another?
An AU is the mean distance between the Earth to the Sun. As the Earth's orbit is slightly elliptical, the distance between the planet and the Sun varies. It varies from about 0.983 AU (at perihelion) and 1.016 AU (at aphelion).
Jupiter is roughly 5.2 AU from the sun.
Jupiter
Uranus is around 19 AU from the sun, theres no planet that is 1.9 AU from the sun. the closest to this is Mars, at 1.5 AU.
Venus is 0.723332 AU (semi-major axis) from the Sun.
Planet Saturn is 9.5 au's away from the sun. An au is astronomical unit used to measure distances from a planet to the sun.
No planet so far observed or detected is that far from the Sun. The furthest planet so far observed is Neptune at about 30 AU.
neptune
Mars of course.....
Neptune, the furthest planet. Its is around 30 AU from the sun, while Jupiter is 5.2 AU.
Mercury averages around this distance from the sun.
Earth is 1 AU from the Sun. There is no planet at an orbit of 2.5 AU. (Mars orbits at 1.5 AU and Jupiter at 5.2 AU).
Haumea's orbit is oval shaped, taking it from 34.72 AU out to 51.54 AU from the sun. Currently it's about 50 AU from the sun.