The temperature on the moon varies from -233 Celsius, at night, to 123 Celsius during the day. Because the moon has no atmosphere to block some of the sun’s rays or to help trap heat at night, its temperature varies greatly between day and night.
The moon orbits Earth at a speed of (3,683 kilometers per hour). During this time it travels a distance of (2,290,000 kilometers).
The moon appears to follow you because it is very far away, and objects like trees and houses that you pass by are very close by comparison. As you walk or drive along, things much closer to you, like trees and houses, appear to move between you and the moon. Because the moon is so far away, it doesn’t seem to move at all (compared to you) and appears to be following you.
How fast does the moon travel around Earth?
The moon orbits Earth at a speed of 3,683 kilometers per hour. During this time it travels a distance of 2,290,000 kilometers.
How long is a day on the moon?
A day on the moon is 27.32 Earth days or 655.72 hours long. It240,00
How long does it take to travel to the moon?
It takes about 3 days for a spacecraft to reach the moon. During that time a spacecraft travels about 386,400 kilometers which is the distance between Earth and the moon.
How much would I weigh on the moon?
On the moon a person would weigh six times less than they do on Earth. This is because the moon has one sixth the gravity of Earth. The low gravity on the moon made it easier for the astronauts to move around and even jump (as shown in the photo).
How does the moon shine?
The moon does not make its own light, instead the light we see from the moon is really sunlight that is reflected from the moon’s surface
How many astronauts have walked on the moon?
Twelve astronauts walked on the moon between 1969 and 1972. They were part of the six Apollo missions which each landed two astronauts on the moon’s surface.
What is a star?
A star is a huge sphere of very hot, glowing gas. Stars produce their own light and energy by a process called nuclear fusion. Fusion happens when lighter elements are forced to become heavier elements. When this happens, a tremendous amount of energy is created causing the star to heat up and shine. Stars come in a variety of sizes and colors. Our Sun is an average sized yellowish star. Stars which are smaller than our Sun are reddish and larger stars are blue.
What are stars made of?
Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements. Most stars have small amounts of heavier elements like carbon, nitrogen, oxygen and iron, which were created by stars that existed before them. After a star runs out of fuel, it ejects much of its material back into space. New stars are formed from this material. So the material in stars is recycled.
How many stars can you see at night?
The number of stars that you can see on a clear (moonless) night in a dark area (far away from city lights) is about 2000. Basically, the darker the sky, the more stars you can see. Moonlight brightens the night sky and reduces the number of stars you can see. A full moon brightens the sky more than a crescent moon or half moon. Artificial lights also reduce the number of stars you can see. In a large city, which has a lot of bright lights at night, you may only be able to see the brightest dozen stars. As the night sky gets brighter, the faintest stars disappear from view first. A major problem for ground based astronomers is what we call „light pollution“ – the increase in man-made light sources which affects observations of the night sky.
How many stars are there?
Nobody knows exactly how many stars there are in the universe. There are so many stars (billions and billions of them) that it is not possible to count them all. Our own galaxy, the Milky Way, has about 200 billion stars. There are billions of other galaxies in the universe which have as many or even more stars.
Which star is closest to us?
The closest star to us is Proxima Centauri. It lies at a distance of about 4.3ï¿½light-yearsï¿½or about 25,300,000,000,000 miles (about 39,900,000,000,000 kilometers). A car travelling at a speed of 60 miles per hour would take more than 48 million years to reach this closest star. Proxima Centauri is actually part of a triple star system which also includes the stars Alpha Centauri A and B. It is a small, red star which is about one tenth the size of our Sun.
Is the sun the largest star?
Although the sun appear larger to us than any other star, there are many stars which are much larger. The sun appears so large compared to the other stars because it is so much closer to us than any other star. The sun is just an average sized star. For example, below is a list of some of the largest stars in our galaxy and how they compare to our sun:
Mu Cephi – about 1500 times the size of our sun
Betelgeuse – about 900 times the size of our sun
Antares – about 530 times the size of our sun
Deneb – about 145 times the size of our sun
Why do the stars twinkle?
Stars do not really twinkle, they just appear to twinkle when seen from the surface of Earth. The stars twinkle in the night sky because of the effects of our atmosphere. When starlight enters our atmosphere it is affected by winds in the atmosphere and by areas with different temperatures and densities. This causes the light from the star to twinkle when seen from the ground.
What are constellations?
A constellation is a group of stars that make an imaginary shape in the night sky. They are usually named after mythological characters, people, animals and objects. In different parts of the world, people have made up different shapes out of the same groups of bright stars. It is like a game of connecting the dots. In the past creating imaginary images out of stars became useful for navigating at night and for keeping track of the seasons.
Why do stars only come out at night?
The stars are in the sky both day and night. During the day our star, the sun, makes our sky so bright that we cannot see the much dimmer stars. At night, when the sky is dark, the light of the stars can be seen.
Why are some stars bright and others dim?
The stars are not all at the same distance from us. Some stars are closer and some are farther away. The closer a star is to us, the brighter it will appear. Also, stars come in a variety of sizes and brightnesses. Larger stars usually shine more brightly than smaller stars do. So, how bright a star appears in the night sky depends on its size and how far away from us it is.
Will we ever travel to the stars?
Traveling to the stars is very difficult because they are so far away. The nearest star is 25,300,000,000,000 miles (about 39,900,000,000,000 kilometers) away. It would take the fastest rockets that we have thousands of years to reach it. It is always possible that sometime in the future people may find a way to travel to the stars, but right now we just do not have the technology.
How far away are the stars?
The stars are not all at the same distance from us. Some stars are closer and some are farther away. The closer a star is to us, the brighter it will appear. Also, stars come in a variety of sizes and brightnesses. Larger stars usually shine more brightly than smaller stars do. So, how bright a star appears in the night sky depends on its size as well as how far away from us it is. The closest star is about 25,300,000,000,000 miles (39,900,000,000,000 kilometers) away, while the farthest stars are billions of times farther than that.