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Venus or Mercury, depending on the definition of "day" used. It takes Venus 243 Earth days to spin on its axis relative to the background stars (a "sidereal day"). It takes Venus 224.7 Earth days to orbit the Sun (its year). However, a "solar day" is only 116.75 Earth days long due to the combination of rotation time, orbit time and spin direction. (Venus spins in the other direction to Earth and most other planets.)

Mercury has a "sidereal day" of about 58.6 Earth days and a year of about 88 Earth days.

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Q: Which planets day is half as long as its year?
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Related questions

What planets day is half as long as its year?

murcury


What planets days is more than half as long as its years?

The "Solar day" on Venus. Or, the "Sidereal day" on Mercury.


What planet has a day half as long as its year?

That's Mercury: "sidereal day" is more than half its year. Or, it could be Venus: "solar day" is just over half its year.


What planet's day is half as long as it's year?

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Inside the arctic circle, it can be "day" all day long, all 24 hours long. At the poles, this will continue for half a year. The other half year is night.


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Around a year or so or about a day or half a day or 365 and a half days :D


How long is the planets day?

Which planet?


Which planet has a day more than half as long as a year?

Mercury's day is about 58.65 Earth days, and its year about 87.97. Venus has a day that is 243.0 Earth days long, while its year is only 224.7.


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24 hours


Can a planets day be longer then its year?

Yes. In fact, Venus has a longer day than its year.


This planets year is shorter than its day?

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