What is the exact radius of the Moon?

What is the exact radius of the Moon?

The moon’s mean radius is 1,079.6 miles (1,737.5 kilometers) and the mean diameter is 2,159.2 miles (3,475 km). Compared to Earth, the moon is less than a third the width of our home planet, according to NASA (opens in new tab). The moon’s equatorial circumference is 6,783.5 miles (10,917 km).

What is the radius of moon in physics?

Given the mass of the moon = 7.35 × 1022 kg and the radius of the moon = 1740 km.

What is moon radius in km?

Size and Distance With a radius of about 1,080 miles (1,740 kilometers), the Moon is less than a third of the width of Earth. If Earth were the size of a nickel, the Moon would be about as big as a coffee bean. The Moon is an average of 238,855 miles (384,400 kilometers) away.

Is the Earth 4 times bigger than the Moon?

This one’s another easy approximation to remember: The Moon is about one-fourth (or a quarter) the size of Earth in width. Put another way, Earth is about four times wider than the Moon.

What is radius of moon Class 9?

The mass of the moon is 7.35×1022kg. The radius of the moon is 1.74×106 m.

Is the Moon exactly round?

What is the Moon really shaped like? The Moon is shaped like an imperfect sphere. From a distance, it looks nearly round. Seen up close, the Moon’s surface is a three-dimensional landscape of mountains, valleys, and craters.

How big is the Moon ring?

It is the shape of the ice crystals that focuses the light into a halo around the Moon. Since the ice crystals are normally all hexagonal, the Moon’s ring is almost always the same size; it has a diameter of 22º.

What is the formula for moon?

The Moon has a smaller mass than the Earth and so the pull of gravity by the moon on an object is smaller than on the earth. The moon has a smaller gravitational field strength. On the Moon, g = 1.6 N/kg. In other words, a 1 kg mass has a weight on the Moon of 1.6 N.

Why the Moon is round?

Gravity is at work here. A body as massive as a planet or large moon has sufficient gravity to pull its solid rock, liquid oceans, and gaseous atmosphere into the shape of a sphere.

What is a moon made of?

The average composition of the lunar surface by weight is roughly 43% oxygen, 20% silicon, 19% magnesium, 10% iron, 3% calcium, 3% aluminum, 0.42% chromium, 0.18% titanium and 0.12% manganese. Orbiting spacecraft have found traces of water on the lunar surface that may have originated from deep underground.

What color is the Moon?

What color is the Moon? It depends on the night. Outside of the Earth’s atmosphere, the dark Moon, which shines by reflected sunlight, appears a magnificently brown-tinged gray. Viewed from inside the Earth’s atmosphere, though, the moon can appear quite different.

How heavy is the Moon?

The mass of the Moon is approximately 8.1 x 10^19 tons (7.3 x 10^22 kg or . 01 x Earth mass). The mean diameter of the Moon is 2,159 miles (3,476 km or . 27 x Earth diameter).

Why is the Moon 400 times?

Even though the Moon is 400 times smaller than the Sun, it’s also about 400 times closer to Earth than the Sun is. This means that from Earth, the Moon and the Sun appear to be roughly the same size in the sky.

What are 5 interesting facts about the Moon?

• The Sun and the Moon are not the same size. From Earth, both the Sun and the Moon look about same size. …
• The Moon is drifting away from the Earth. …
• The Moon was made when a rock smashed into Earth. …
• The Moon makes the Earth move as well as the tides. …
• The Moon has quakes too. …
• There is water on the Moon!

• The Sun and the Moon are not the same size. From Earth, both the Sun and the Moon look about same size. …
• The Moon is drifting away from the Earth. …
• The Moon was made when a rock smashed into Earth. …
• The Moon makes the Earth move as well as the tides. …
• The Moon has quakes too. …
• There is water on the Moon!

How much does moon cost?

NASA’s Artemis programme will cost an estimated US$93 billion for 13 years of work, culminating in landing a crew on the Moon. Do you think that cost is worthwhile? *

Is the Moon 235000 miles away?

On average the moon is 380,000 km (235,000 miles) from the Earth, a distance of about 110 times its own diameter.

Is the Moon exactly 400?

Even though the Moon is 400 times smaller than the Sun, it’s also about 400 times closer to Earth than the Sun is. This means that from Earth, the Moon and the Sun appear to be roughly the same size in the sky.

Is the Moon 239 000 miles from Earth?

The Short Answer: The Moon is an average of 238,855 miles away from Earth, which is about 30 Earths away.

Does the Moon rotate 360?

The Moon moves backwards (in terms of the diurnal motion of the sky), that is, eastwards. Knowing it moves 13.2 degrees in a day means we can calculate it moves a full cycle of 360 degrees in (360/13.2) days, or 27.3 days. This is the sidereal period of the Moon, a sidereal month.