What percentage of the solar nebula’s mass consists of hydrogen and helium gas?

By far, the most prevalent gases in the solar nebula are hydrogen and helium. They make up roughly 98 percent of it. Only 2% of the solar nebula’s mass is made up of other elements combined.

What type of spectrum does the gas in a planetary nebula produce?

A planetary nebula emits an emission spectrum. The spectra of the planetary nebula is essentially identical to that of the H II area; it includes both dim and bright lines from various ion recombinations in addition to bright lines from hydrogen and helium recombinations and forbidden lines that are triggered by collisions.

What ionizes the gas in a planetary nebula?

A planetary nebula is created when a red giant star is towards the end of its lifespan and starts to lose mass quickly. This matter condenses and surrounds the star in the form of a shell. This gas and dust cloud temporarily blocks out the main star. The star shifts to the left. This implies that the brightness stays the same while the temperature dramatically rises. The blazing star starts to release ultraviolet light, which ionizes the nebula’s gas. The ionized gas starts to shine and illuminates the planetary nebula. The center star eventually reaches full evolution, and up to 90% of its brightness is lost.

Where did most of the gas in the solar nebula end up?

Most of the gas in the solar nebula ended up in the sun. This gas is what makes up the sun’s atmosphere and gives it its characteristic yellow or red color.

Why does gas in nebula become a star?

Gas clusters’ gravitational pull increases as they grow larger and larger. The mass of gas and dust eventually grows so large that it is forced to collapse by gravity. The material in the cloud’s core heats up due to the collapse, and this hot core forms a star.

Why does the gas glow in the nebula?

Most people know that the gas in a nebula glows brightly because of the light it reflects from nearby stars. However, there are other reasons why gas in a nebula glows. One reason is that the starlight heats up the gas. This heat is also what causes the gas to glow.

What force originally brought the nebula gas and dust clouds together?

In the early universe, there were no stars and no planets. Instead, there was a hot, dense gas called the nebula. These gas and dust clouds were attracted to each other by the force of gravity. Over time, these clouds clumped together and formed stars and planets. The force that originally brought them together is now called the force of gravity.

How did the solar system form from a nebula of dust and gas?

The solar nebula, a cloud of gas and dust, is the source of both the Sun and the planets. The collapse of the solar nebula was most likely brought on by a shock wave from a nearby supernova explosion. The planets formed in a thin disk around the Sun, forming in the solar system’s center.

What kind of photons excites the gas in a planetary nebula?

When nearby O and B-type stars ionize an interstellar gas cloud that is primarily composed of neutral hydrogen atoms, one of the most frequent types of emission nebula forms. These incredibly hot and bright stars release numerous high-energy ultraviolet (UV) photons, splitting neutral hydrogen atoms into hydrogen nuclei and electrons. Later on, these combine once again to create neutral hydrogen once more, but this time in an excited state.

What causes those arcs and bubble shapes in the dust and gas distribution of the Orion nebula?

The Orion nebula is a popular concept for studying the formation of stars. It’s made up of gas and dust, and astronomers use it to study how stars are born. One of the things they study is the distribution of gas and dust in the nebula. They use powerful telescopes to see how gas and dust behave.

Recently, they noticed something strange: arcs and bubble shapes in the gas distribution. Emissions from young stars cause these features. These young stars are releasing energy in the form of heat, light, and particles. The emissions cause the gas and dust to move around, which creates arcs and bubble shapes.

Where does the gas in a nebula come from?

Nebulae are clouds of gas and dust that are found in the universe. The collapse of stars formed these gases. When a star dies, it explodes as a supernova. This explosion causes parts of the star to break away. These pieces are very hot and start collapsing under their weight. The pressure from the collapsing matter creates a bubble of gas and dust. This bubble is called a nebula.