The distance between Earth and Mars constantly changes as each lie in their own separate orbits so could even be on opposite sides of the sun to each other. The answer is further complicated by the eliptical orbits of both planets. However, all things considered the closest theoretical point Earth and Mars can be separated by is 54.6 million km.
Venus is 0.723332 AU (semi-major axis) from the Sun.
There is no planet that can be described as "about as far" from the Sun as Mercury. It's the planet closest to the Sun, and the only other planet closer to the Sun than Earth is Venus, which is about twice the distance away from the Sun compared to Mercury. Considering that's a difference of roughly 51,000,000 km (0.32 AU, 1 AU is the average distance from the Earth to the Sun), that's one hell of a long way away. Still, it's closer than any other planet (however, even the Sun is closer to Mercury than Venus).
The distance from Venus to Mercury is 44,879,361.20729999 km or 0.3 AU.
The average distance between Mercury and Venus is approximately 0.5 astronomical units (AU), where 1 AU is approximately 93 million miles. One light year is about 63,241 AU, so the distance between Mercury and Venus is about 0.0000079 light years.
They are less than 1 AU from the sun.
This varies (because both orbit the Sun) from 0.34 AU to 1.1 AU.
Venus is 0.723332 AU (semi-major axis) from the Sun.
Venus is .72 AU's away from the sun.
At Perigee (Closest) Venus is about 38.1 million kilometers away (0.255 AU).
There is no planet that can be described as "about as far" from the Sun as Mercury. It's the planet closest to the Sun, and the only other planet closer to the Sun than Earth is Venus, which is about twice the distance away from the Sun compared to Mercury. Considering that's a difference of roughly 51,000,000 km (0.32 AU, 1 AU is the average distance from the Earth to the Sun), that's one hell of a long way away. Still, it's closer than any other planet (however, even the Sun is closer to Mercury than Venus).
The furthest mercury gets from the Sun is 69,816,900 km (0.466 697 AU)
The distance from Venus to Mercury is 44,879,361.20729999 km or 0.3 AU.
The average distance between Mercury and Venus is approximately 0.5 astronomical units (AU), where 1 AU is approximately 93 million miles. One light year is about 63,241 AU, so the distance between Mercury and Venus is about 0.0000079 light years.
They are less than 1 AU from the sun.
Mars is the closest. Mars orbital period is 687 days. Earth, as we all know, is 365 days. The next planet out, Jupiter, revolves around the Sun in 12 years. Saturn for information takes almost 30 years. Saturn
It depends on when the question is asked. Mercury orbits the sun at a distance of 0.4AU, venus at 0.7AU, earth at 1 AU, and mars at 1.5AU. (next planet jupiter is at 5.2AU and is too far to affect the answer) Depending on the planetary alignments, - mercury can be between 0.6 and 1.4 AU from earth - venus can be between 0.3 and 1.7 AU from earth - mars can be between 0.5 and 2.5 AU from earth. Therefore, the 2 closest planets can be either mercury & venus, or mercury & mars, or venus & mars, depending on planetary alignments. For a similar question "which 2 planets have orbits closest to earth's orbit", then the answer might be "venus & mars", unless you want to use a non-trivial measure of distance. Maybe a measure of distance based on area between the orbits instead of difference of orbit radius (in which case "venus & mercury" would be a better answer)
Mercury is 0.5167 AU from Earth. AU stands for astronomical unit. Mercury is 48,000,000 miles from Earth at its closest approach.