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It would have to be Mercury, Venus or Mars; even at its closest, Jupiter is farther away than Venus at its most distant.
I use a planetarium program called Stellarium - available for free from stellarium.org - to perform these calculations. I highly recommend it.
Mercury is presently (21 Aug 2009) closest at .9 AU, while Venus is next at 1.2 and Mars at 1.6 AU away.
What else can I help you with?
What is the name of planet closest to the moon today?
The closest planet to the Moon today is Mars. It is currently not physically close to the Moon but is closest to it in terms of its position in the sky.
What planet is 2nd closest from the earth?
Venus is the second closest planet to the sun.
Which third planet is closest to the sun?
Earth is the third closest planet to the sun.
What is the second closest planet to mars?
The second closest planet to Mars is Earth. After Earth, the next closest planet to Mars is Jupiter.
Which planet is closest in mass to the size of planet Earth?
Venus is the planet closest in mass to Earth, with a mass about 81% that of Earth.
What is the name of planet closest to the moon today?
The closest planet to the Moon today is Mars. It is currently not physically close to the Moon but is closest to it in terms of its position in the sky.
What planet is closest to the moon?
Earth is the closest planet to the moon and Venus follows as the second closest planet to the moon
What is the closet planet to moon?
The closest planet to the Moon is Earth. The Moon is Earth's natural satellite and is closest to our planet in terms of distance.
What planet is 2nd closest from the earth?
Venus is the second closest planet to the sun.
What planrt is closest to the earth?
What planet is closest to the earth
What is the name of the closest star to your planet?
My planet is Earth. Earth's closest star is the Sun.
What is the smallest planet closest to earth?
Mercury is the smallest planet closest to the earth.
Which third planet is closest to the sun?
Earth is the third closest planet to the sun.
What is the second closest planet to mars?
The second closest planet to Mars is Earth. After Earth, the next closest planet to Mars is Jupiter.
Which planet is closest in mass to the size of planet Earth?
Venus is the planet closest in mass to Earth, with a mass about 81% that of Earth.
What is the name of the largest closest star to planet earth?
The star closest to Earth is the sun. The phrase "... largest to planet Earth ... " is meaningless.
What is the closest planet from the planet?
The closest planets from the Earth is Venus and Mars.
