PLEASE, THE ANSWER MUST BE TYPED! Comment what you learned about the Sun\'s feat

Question

PLEASE, THE ANSWER MUST BE TYPED!

Comment what you learned about the Sun's features such as its size, temperature, luminosity, rotation rate, solar constant, sunspots, sunspot cycle, prominences, etc.... that you did not know before. Also, what did you learn about the interior and surface and atmosphere? What do you understand now that you didn't understand before and what new questions do you have? Is there anything more that you would like to find out about? What did you learn about how the sun makes energy in the core that you found interesting or new? What do you think about the viability of nuclear energy as a clean source of energy in the future using controlled nuclear fusion?? Do you think by putting more hydrogen atoms into the sun, we can possibly extend its life?? What do you find interesting about the 11 years and 22-year sunspot and solar cycle? Do you think the Maunder Minimum and other solar minima like the Sporer, Wolf and Oort Minima have affected civilizations and temperatures here on Earth to the point of extinction of some civilizations such as the Mayans and causing ice ages and freezing and blistering hot temperatures?? What causes solar flares and what are the different categories of solar flares that can have potentially disastrous effects on Earth?

Explanation / Answer

TheSun in visible band (with filter transmition giving white light) withsunspotsincluding a rare spiral one.

the Sun is darker toward the edges where you are not seeing so directly into the hotter brighter layers.

This darkening toward the edge is called limb darkening.The edge of an astro-bodyprojected onto the celestial sphereis called a limb.

We can see some sunspots. They look dark only by comparison to the rest of the Sun. They are a bit cooler, and so a bit dimmer than the rest of the Sun. They are a transient magnetic phenomenon---a part ofSun weather.

Earth Surface and Interior focus area (ESI) supports research and analysis of solid-Earth processes and properties from crust to core. studies provide the basic understanding and data products needed to inform the assessment, mitigation, and forecasting of the natural hazards, including phenomena such as earthquakes, tsunamis, landslides, and volcanic eruptions

I didn't before knew about the limb darkening and that the sun is darker at the edges

New questions which I have is about what kind of visible band is with the sunspot?

Yes I would to know about the kind of visible band on the sunspot

Sun's get its energy from the nuclear fusion that converts hydrogen atoms into helium. The by-product of nuclear fusion in the Sun's core is a massive volume of energy that gets released.

Nuclear power is clean. Itself, it is emission-free… for the most part. There are some emissions when back-up diesel generators must be run, but usually civilian plants just use outside power instead. If you argue that the vehicles involved in mining generate emissions, sure, but then Solar and Wind are actually worse off.

The answer would be yes. It is true that the main sequence lifetime of a star scales roughly as the inverse third power of the mass of the star.

The sunspot cycle happens because of this pole flip — north becomes south and south becomes north—approximately every 11 years. Some 11 years later, the poles reverse again back to where they started, making the full solar cycle actually a 22-year phenomenon. The sun behaves similarly over the course of each 11-year cycle no matter which pole is on top, however, so this shorter cycle tends to receive more attention.

Solar activity associated with Space Weather can be divided into four main components: solar flares, coronal mass ejections, high-speed solar wind, and solar energetic particles.

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