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The sun may have started from the nebula of our solar system. The nebula was mostly made of dust and gasses, and slowly condensed most of it's materials to one area, and eventually, pressure was great enough that nuclear fission could occur. Nuclear fission is a continuing explosion that provides the sun with energy, and light. That's how the sun was formed!
~The rest of the material of the nebula formed the rest of the planets in the solar system.
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CoachAstronomers believe the Sun formed from a cloud of gas and dust in space, known as a solar nebula, about 4.6 billion years ago. The gravitational forces within the nebula caused it to collapse and form a protostar, which eventually became the Sun through the process of nuclear fusion.
Our Sun is about 4.5 x 109 years old, and is a normal main sequence star.
Check out Hertzsprung - Russell diagram.
It is essentially 75% hydrogen and 25% helium.
It was formed along with the rest of the Solar system by the accumulation of gas and dust.
Our Earth contains a much greater proportion of heavy elements, so it accumulated from debris left over from a Super Nova explosion, for a star such as our Sun is not massive enough to manufacture elements heavier than iron.
The age of the Universe is about 13 x 109 years.
The best guess that scientists have for the origins of the solar system is the Solar Nebula Hypothesis.
A star or a number of stars exploded leaving a dispersed cloud of various elements and particles in space. Objects with mass are attracted to other objects with mass so the atoms in the cloud begin to accumulate. Within the centre of the accumulation, there is a higher pressure and therefore a higher temperature. At temperatures exceeding 10000K, a protostar may form in the centre of the accumulation. Surrounding the protostar is a disk of various gases and atoms and particles. This disk is prevented from collapsing because the system is rotating.
Within the disk, stuff starts to happen. Elements that can solidify at higher temperatures do so in closer proximity to the protostar (which becomes the Sun), elements that solidify at lower temperatures do so further away from the young Sun. These solids form planets through the process of cold accretion. Planets closer to the Sun are mainly composed of elements that solidify at high temperatures. The formation of planetoids prevents other planets from beginning to form by using up all of the available surrounding materials.
Solar wind blows excess material away into space.
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How do astronomers think the sun started?
Astronomers think the Sun started out like all other stars: A star birth nebula, a massive stellar gas cloud that growing stars absorb with their gravity to fuel the nuclear reaction in their cores. So basically, the Sun is a giant swirling ball of gas, but more specifically, the Sun is a star in the classification of a Yellow Dwarf, which really isn't that large of a star, as a matter of fact, compared to VY Canis Majoris, a star in the classification of a red giant, and the biggest known star in the universe, the Sun is approximately 2,800 times SMALLER than VY Canis Majoris.
Did astronomers believe that the sun was part of earth?
No.
Why do astronomers use special filters to look at the sun?
Astronomers use special filters to observe the sun because the sun emits high-intensity light that can damage the eyes and sensitive equipment. These filters help to reduce the brightness of the sun and allow astronomers to safely study its features, such as sunspots and solar flares.
How do astronomers observe the sun at different wavelengths?
Cus they is BOSS
Who did aristarchus influence?
Aristarchus of Samos influenced later astronomers by proposing a heliocentric model of the universe, where the Sun, not the Earth, was at the center. His ideas laid the foundation for the work of astronomers like Copernicus and Galileo.
How long do astronomers estimate the sun will last before it begins to die?
Astronomers think the sun will die in 2012
How do astronomers think the sun have begun?
I think that it started out as a star just like any other and then it gathered energy and grew larger over trillions of years before dinosours, or something. hope it helped!
How do astronomers think the sun started?
Astronomers think the Sun started out like all other stars: A star birth nebula, a massive stellar gas cloud that growing stars absorb with their gravity to fuel the nuclear reaction in their cores. So basically, the Sun is a giant swirling ball of gas, but more specifically, the Sun is a star in the classification of a Yellow Dwarf, which really isn't that large of a star, as a matter of fact, compared to VY Canis Majoris, a star in the classification of a red giant, and the biggest known star in the universe, the Sun is approximately 2,800 times SMALLER than VY Canis Majoris.
What is used when astronomers measure the distance from the sun to the earth?
Parallax is the method that astronomers use to measure the distance from the sun to the earth.
How did astronomers think the sun began?
at first there was a very big cloud of hydrogen then, because of the gravity, the cloud started to get smaller and smaller, the hydrogen particles got closer and some time later, the pressure got so, huge that a nuclear fushion process became and the hydrogen started to turn into helium
Why do most astronomers think that the sun was found?
Today's astronomers inherit the benefit of literally centuries of measurements with ever greater accuracy and precision. Standing as they do on the shoulders of giants, they have begun to perceive a true sense of the huge ginormity of the sun and its dimensions, and are coming to recognize that the sun is so gigantic that it has never been lost.
Did astronomers believe that the sun was part of earth?
No.
How long have astronomers been trying to find out what the sun orbits?
For two or three hundred years, astronomers have had a fair idea the the Sun is not the center of the Universe.
Why can astronomers predict eclipses?
Astronomers can predict eclipses because they understand the movements of the Earth, Moon, and Sun in space. By tracking their positions and orbits, astronomers can calculate when the Moon will pass in front of the Sun (solar eclipse) or when the Earth will pass between the Sun and the Moon (lunar eclipse). This knowledge allows astronomers to forecast eclipses with accuracy.
Why is the sun most important in the universe?
Our Sun is only important TO US. Other than the fact that we live here on Earth and are pretty much dependent on it, there isn't anything special about the Sun. It's a little larger than the average, but not spectacularly so. (Astronomers used to think that our Sun was in the middle of the range of stars, until we started discovering so many tiny and dim stars in the Galaxy.)
Why do astronomers use special filters to look at the sun?
Astronomers use special filters to observe the sun because the sun emits high-intensity light that can damage the eyes and sensitive equipment. These filters help to reduce the brightness of the sun and allow astronomers to safely study its features, such as sunspots and solar flares.
What scientist studies the function of the sun?
Astronomers study celestial bodies, helio astronomers specifically study suns.
