Day on planet mercury compared to earth?

Answer 1

Mercury's Solar Day is about 176 Earth days. That's the time taken for the Sun to complete one apparent journey around the sky.

Mercury's Sidereal day (rotation period) about 58.6 Earth days.

Earth's solar day is 24 hours.

Earth's sidereal day is about 23 hours and 56 minutes.

Answer 2

Mercury takes 59 Earth days to rotate once and 88 Earth days to complete an orbit of the Sun. This means that a solar day on Mercury lasts about 176 Earth days, which is about twice as long as Mercury's orbital period. As a result a Mercury year is about 0.5 Mercury days long and one Mercury day lasts approximately two Mercury years.

If you think that this is strange it is because like the Moon and Earth, Mercury's slow rotation means that it ALMOST keeps the same side facing the Sun as it orbits the Sun.

Answer 3

Mercury takes 58.646 Earth days to rotate once.

That's called a "sidereal day".

The Earth rotates once in 23 hours 56 minutes and 4 seconds.

There's also the "solar day" which depends on the apparent movement of the Sun in the sky. That depends on a planet's orbital motion around the Sun, as well as its rotation period.

Earth has a "solar day" of exactly 24 hours. (Strictly speaking this is called the "mean (average) solar day".)

Unlike for Earth, Mercury has a huge difference in the lengths of the two "days".

The length of Mercury's solar day is about 176 Earth days.

Answer 4

A day on Mercury lasts around 176 Earth days due to its slow rotation. This is because Mercury takes about 59 Earth days to complete one rotation on its axis. In comparison, an Earth Day is approximately 24 hours long.

Answer 5

my answer is it is half the size to earth.

Answer 6

Mercury take around 87.97 days to make one orbit of the sun, about 3 Earth months for one year on Mercury.

Answer 7

No - Mercury's "sidereal" day (rotation period) is about 58.6 Earth days.

Mercury's "solar" day is 3 times longer still, at about 176 Earth days.

Answer 8

176 earth days