What is the length of a year to mercury?

Answer 1

It takes Mercury 88 (87.969) days to orbit the Sun, thus its year is roughly 25% that of the Earth.
A year is the time taken to orbit the sun. Mercury takes 88 earth days. The length of a year on planet Mercury is 88 Earth days.
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Answer 2

It takes 88 Earth days for Mercury to complete an orbit of the Sun, about 1/4 of an Earth year.

The day on Mercury is unusual. The planet's spin is extremely slow, taking about 58.7 Earth days to make one rotation. This is exactly 1.5 turns for each orbit.

The result of these two periods is that the "solar day" is greatly extended, and lasts about 176 Earth days (sunrise to sunrise). In effect, Mercury's day (as observed from its surface) seems twice as long as its year.

*The orbit of Mercury is highly eccentric, so the planet ranges in distance from the Sun between 46 million and 70 million kilometers. The planet moves its fastest when it's at its closest point to the Sun (which astronomers call perihelion). And then moves the slowest when it's at its most distant point of orbit, called aphelion. Astronomers used to think that Mercury was tidally locked to the Sun, where its rotational period (or day) matched its orbital period (its year). This would make it always face the same side towards the Sun. But now we know that one very slow rotation of Mercury lasts about 58.7 days.

Answer 3

Mercury is the closest planet to the Sun and takes 88 days to complete one orbit. This means that a year on Mercury lasts 88 days.

Answer 4

A day on Mercury = 4223 Earth hoursA year of Mercury = 88 Earth days.

Answer 5

It is approx 88 Earth-days.