How big is Mercury in miles and km?

How big is Mercury in miles and km?

Circumference, radius, and diameter The diameter of Mercury is 3,030 miles (4,878 km), which is equivalent to the size of the continental United States. It is thus around two-fifths the size of the Earth. Merkurius is Latin for "Mercury."

Mass Although only a third as massive as the Earth, Mercury is still quite a dense body: 5.5 times as dense as water. That makes it about 1.5 billion km3 in volume, or about 0.6% the volume of the Earth.

Gravity Because its mass is so much less than that of the Earth, Mercury's gravity is about 58% that of Earth's (compared with 9.8 m/s2 on Earth).

Axis and Orbit Around the Sun in 89 days A mercury orbit is a highly elliptical one, reaching a peak distance from the Sun of 59 million km but with an eccentricity of 0.207, so that each orbit is not exactly the same length as the next. The reason for this unusual shape is that it is needed to retain enough energy to prevent being pulled into the Sun.

What is the km of mercury?

The diameter of Mercury is 3,030 miles (4,878 km), which is equivalent to the size of the continental United States. It is smaller than Ganymede, Jupiter's moon, and Titan, Saturn's moon. But it won't stay that little forever; the tiny planet is shrinking.

Mercury has no intrinsic mass worth mentioning. Instead, it is made up of iron and other metals. The core of Mercury is probably solid iron, but beyond that we know nothing about it. The only thing we do know for sure is that the core is very small because there are few materials on earth that are heavier than iron. If it were larger than a few hundred kilometers in radius, Mercury would be too heavy to remain in its current state as a sphere.

However, even though the core is small, it makes a big difference regarding Mercury's density. As you may know, density is defined as the amount of matter per unit volume. Density can be thought of as the mass of a substance divided by its overall volume. On earth, our density is about 7850 kg/m3. That means that if we packed all the matter on earth into a cube with sides measuring 1 meter, we could fill it up to 0.78 meters high.

On Mercury, however, the core contributes only 4% to its total mass, while the rest is shell.

How big is Mercury compared to other planets?

Mercury is around one-third the size of Earth. It is the smallest planet in the solar system. Mercury is extremely near to the Sun and has no atmosphere. The temperature ranges from 500 degrees F at the sunlit side to 450 degrees F at the dark side.

It used to be thought that because of this heat source, Mercury had a large iron core like Earth's but recent discoveries have shown that it is completely covered by a thick carbon dioxide ice layer. Even though it is the closest planet to the Sun, it is also the darkest due to this ice layer which reflects most of the sunlight away from the planet.

The average distance between the Sun and Mercury is about 0.5 Astronomical Units (AU), or half the radius of our Solar System. This means that if we were standing on Mercury, we would see the Sun only during part of each orbit. Because of this close proximity and slow orbital speed, all of Mercury's water was destroyed long ago when it was still orbiting closer to the Sun.

Currently, there are two rovers roaming around on Mercury, and they have sent back many pictures and data about this strange planet.

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Lola Griffin

Lola Griffin is a spiritual healer who has been helping others for over 20 years. She has helped people with things such as anxiety, depression, and PTSD. Lola believes that we are all connected and that we can heal ourselves by healing others.

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