How do astronomers know what the outer layers of the sun are made of Group of answer choices?
the outer layers of the Sun? We take an absorption line spectrum of the Sun; these absorption lines tell us what elements are present in the outer layers.
What is the best reason astronomers have come up with to explain why sunspots are cooler and look darker?
What is the best reason astronomers have come up with to explain why sunspots are cooler and look darker? Astronomers have concluded that the Sun’s activity varies in an 11-year cycle. Every 11 years sunspots completely cover the Sun making its surface much darker.
How do astronomers know how strong the magnetic field of the sun is?
Astronomers can measure magnetic fields on the sun using . Sunspots have extremely strong magnetic fields which are believed to inhibit the flow of gas. Consequently, convection is reduced below the sunspot and the surface there is cooler.
Why is the structure of the sun different from the structure of Earth?
Much like the earth, the Sun has many different layers that define its structure. Unlike the earth, the Sun is completely gaseous, there is no solid surface on the Sun. As you move away from the heat producing core the temperature drops to about 6000 degrees at the photosphere, the effective surface of the Sun.
What are the 7 layers of the sun?
The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona.
What is the structure of sun?
The sun has six layers. Three layers, the corona, chromosphere, and photosphere, comprise the sun’s atmosphere or outer layer. The other three layers, convective zone, radiative zone, and core, comprise the inner layers, or the parts of the sun that are not seen.
What part of the sun is the corona?
The corona is the outer atmosphere of the Sun. It extends many thousands of kilometers (miles) above the visible “surface” of the Sun, gradually transforming into the solar wind that flows outward through our solar system. The material in the corona is an extremely hot but very tenuous plasma.
What are the 8 parts of the sun?
Inside the sun
- Chromosphere. Chromosphere. The chromosphere is the lowest layer of the sun’s atmosphere.
- Corona. Corona.
- Photosphere. Photosphere.
- Convective zone. Convective zone.
- Radiative. zone.
- Core. Core.
What is the main component of Sun?
The Sun contains about 92% hydrogen and 8% helium, with just a tiny bit of the other common elements we find on Earth. Compare that to Earth, where the most common elements are oxygen, magnesium, silicon, and iron. On Earth, hydrogen barely makes the top 10 list of common elements, and helium is extremely rare.
What are the 2 main parts of the sun?
The solar interior includes the core, radiative zone and convective zone. The photosphere is the visible surface of the Sun. The solar atmosphere includes the chromosphere and corona.
What are the 9 parts of the sun?
In Brief, What is the Sun Made Of? Well, Here are the Components of the Sun
- Hydrogen and helium.
- The core.
- The radiative zone.
- The convective zone.
- The photosphere.
- The solar atmosphere.
- Radio emissions.
Is the sun liquid or gas?
The Sun is our nearest star. It is, as all stars are, a hot ball of gas made up mostly of Hydrogen. The Sun is so hot that most of the gas is actually plasma, the fourth state of matter. The first state is a solid and it is the coldest state of matter.
Which is the hottest layer of the sun?
Is there gold on the sun?
The total mass of gold in the sun amounts to 2.34 trillion tons.
Is there gold on the moon?
The moon isn’t so barren after all. A 2009 NASA mission—in which a rocket slammed into the moon and a second spacecraft studied the blast—revealed that the lunar surface contains an array of compounds, including gold, silver, and mercury, according to PBS.
What is the heaviest element Our sun will ever create?
Who first found gold?
Gold Discovered in California. Many people in California figured gold was there, but it was James W. Marshall on January 24, 1848, who saw something shiny in Sutter Creek near Coloma, California. He had discovered gold unexpectedly while overseeing construction of a sawmill on the American River.
Where is gold most commonly found?
About 244,000 metric tons of gold has been discovered to date (187,000 metric tons historically produced plus current underground reserves of 57,000 metric tons). Most of that gold has come from just three countries: China, Australia, and South Africa. The United States ranked fourth in gold production in 2016.
How old is the gold on Earth?
around 3 billion years
What made gold so valuable?
The metal is abundant enough to create coins but rare enough so that not everyone can produce them. Gold doesn’t corrode, providing a sustainable store of value, and humans are physically and emotionally drawn to it. Societies and economies have placed value on gold, thus perpetuating its worth.
Why was gold so valuable in ancient times?
In most ancient cultures gold was popular in jewellery and art because of its value, aesthetic qualities, ductility and malleability. The value and beauty of gold made it an ideal material for particularly important political and religious objects.
Is Diamond rarer than gold?
This extraordinary process makes natural, minable diamonds rarer than gold. But, in its elemental form, gold is significantly rarer than diamonds. Gold is more abundant than large diamonds, but diamonds as a class of material are not particularly rare.
What is highest price of gold in history?
Highest price for gold: Historical gold price action. Gold hit US$2,067.15, the highest price for gold at the time of this writing, on August 7, 2020.
What will gold be worth in 2030?
Summary: What Is The Future Of The Gold
|Year||Gold Price Prediction|
What would be the gold price in 2021?
Holi 2021: Holika Dahan date, shubh muhurat, significance and other details. If you plan to buy the yellow metal today, 22-carat gold will cost Rs 4,392 per 1 gm and 10 grams of 22-carat-gold stood will cost Rs 43,920. The price of 10 grams of 24-carat gold will cost you Rs 44,920.
Will gold prices fall after lockdown?
Sales are zero during the lockdown,” N. Anantha Padmanaban, chairman of the All India Gem and Jewellery Domestic Council told Reuters. He said India’s gold consumption in 2020 could fall to 350 tonnes to 400 tonnes, the lowest since 1991, and down from 690.4 tonnes in 2019.
Will gold price go down in 2021?
Is it the right time for investment? Gold Prices 2021: On the MCX, the April contract of gold futures was at Rs 44,458 per 10 gram, lower by Rs 83 or 0.19 per cent from its previous close.
Will the gold rate come down in 2020?
Fitch Solutions recently estimated that gold will average US$1,850/oz in 2020 and 2021 then fall to US$1,700/oz in 2022, US$1,650/oz in 2023 and US$1,620/oz in 2024 as mined supply rises.
Can gold prices crash?
The COVID-19 pandemic and lockdowns had led to a surge in gold prices globally. However, a decrease in infections, opening up of economies, increase in vaccination pace and the surge in equities market have decreased the appeal of the yellow metal, as per analysts.