why does the sun shine astronomy

The core of the sun is so hot and there is so much pressure, nuclear fusion takes place: hydrogen is changed to helium. Nuclear fusion creates heat and photons (light). The sun’s surface is about 6,000 Kelvin, which is 10,340 degrees Fahrenheit (5,726 degrees Celsius).

Why does the Sun look so big today 2021?

The Sun will also be slightly larger in our daytime sky. It’s a cosmic occasion called perihelion—the point of the Earth’s orbit that is nearest to the Sun. The word comes from the Greek words peri (near) and helios (Sun). … They’re entirely caused by the tilt of the Earth’s axis of rotation.

What shines brighter than the Sun?

For the last couple of weeks in December, about midnight, Sirius is the brightest star and will be as high as it gets, offering stargazers wonderful views. It is a young, hot-white star only about 8.6 light-years from Earth, and is 25 times brighter than the sun.

Why is the Sun so important?

Nothing is more important to us on Earth than the Sun. Without the Sun’s heat and light, the Earth would be a lifeless ball of ice-coated rock. The Sun warms our seas, stirs our atmosphere, generates our weather patterns, and gives energy to the growing green plants that provide the food and oxygen for life on Earth.

What’s the scariest thing in space?

Supermassive black holes are strange

The biggest black hole discovered so far weighs in at 40 billion times the mass of the Sun, or 20 times the size of the solar system.

Why is the sun so hot but it’s cold in space?

The reason outer space is so cold is because cold is what you get when there is no source of heat nearby. At our distance from the sun, if you put, say, a Mac Truck in space, the side facing the sun will quickly get hot enough to burn you. … Now, on Earth, if you put something out in the sun, it warms up.

Why is space black but the sky is blue?

The daytime sky is blue because light from the nearby Sun hits molecules in the Earth’s atmosphere and scatters off in all directions. … At night, when that part of Earth is facing away from the Sun, space looks black because there is no nearby bright source of light, like the Sun, to be scattered.

Can you fart in space?

The official verdict on gas in space: No burps, more farts, and no, you can’t use your flatulence to propel you around the shuttle.

Are there dead bodies in space?

Remains are generally not scattered in space so as not to contribute to space debris. Remains are sealed until the spacecraft burns up upon re-entry into the Earth’s atmosphere or they reach their extraterrestrial destinations.

Will a body decompose in space?

If you do die in space, your body will not decompose in the normal way, since there is no oxygen. If you were near a source of heat, your body would mummify; if you were not, it would freeze. If your body was sealed in a space suit, it would decompose, but only for as long as the oxygen lasted.

Does the sun shine or burn?

Answer: The Sun does not “burn”, like we think of logs in a fire or paper burning. The Sun glows because it is a very big ball of gas, and a process called nuclear fusion is taking place in its core.

Why does the sun seem to be the biggest star in the universe?

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.

Does the sun shine in space?

In space or on the Moon there is no atmosphere to scatter light. The light from the sun travels a straight line without scattering and all the colors stay together. Looking toward the sun we thus see a brilliant white light while looking away we would see only the darkness of empty space.

What does Hello Sunshine mean?

1 an expression of greeting used on meeting a person or at the start of a telephone call. 2 a call used to attract attention. 3 an expression of surprise.

When u cant find the sunshine be the sunshine?

when you can’t find the sunshine be the sunshine means that when there is no one to shine like a sun or to support than you should stand and by helping or giving the response you should shine like a bright sun.

When we face away from the sun it is?

The side of the Earth facing the Sun is bathed in light and heat (daytime). The side of the Earth facing away from the Sun, out towards space, is darker and colder (nighttime). It takes just over 365 days for the Earth to travel all the way around the Sun.

What are sun scientists called?

Solar physicists specialize in the study of the Sun. These scientists make detailed measurements that are possible only because the Sun is uniquely situated for close-range observing (other stars cannot be resolved with anything like the spatial or temporal resolution that the Sun can).

What is solar astronomy?

Solar astronomy is the radiation astronomy of the star, Sol, often called the Sun.

Why is the Sun called a star?

Stars are space objects that produces their own energy through fusion reaction of gasses. They are like round, gas burning, energy producing luminous orbs. Sun- the star of our solar system is a star because it produces energy by the fusion reaction of Helium turning into Hydrogen.

How the sun was created?

The Sun formed about 4.6 billion years ago in a giant, spinning cloud of gas and dust called the solar nebula. As the nebula collapsed under its own gravity, it spun faster and flattened into a disk. … (The rest of the leftover gas and dust was blown away by the young Sun’s early solar wind.)

Is the sun the biggest star in the universe?

The sun may appear to be the largest star in the sky but that’s just because it’s the closest. … The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun.

Why is the energy from the sun so important?


why does the sun shine astronomy



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