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The Sun is the largest object in our solar system. Its diameter is about 865,000 miles (1.4 million kilometers). Its gravity holds the solar system together, keeping everything from the biggest planets to the smallest bits of debris in orbit around it.
The Sun's atmosphere is composed of five layers: the photosphere, the chromosphere, the transition region, the corona, and the heliosphere. The coolest layer of the Sun is a temperature minimum region extending to about 500 km above the photosphere, and has a temperature of about 4,100 K.
11 paź 2023 · How Does the Solar Cycle Affect the Earth? Although the Sun is 93 million miles (150 million kilometers) away, it still has an obvious effect on the Earth, and as you might expect, any changes there can have an impact here. What follows are just some of the ways the Sun’s magnetic field and sunspot activity indirectly influence our life on Earth:
8 kwi 2024 · The sun is now in its 25th solar cycle since astronomers started gathering accurate sunspot data more than 250 years ago. Solar Cycle 25 started in 2019 and will continue roughly through 2030. Solar maximum and the peak of sunspot frequency are expected in 2025.
The solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a nearly periodic 11-year change in the Sun's activity measured in terms of variations in the number of observed sunspots on the Sun's surface.
13 cze 2024 · The Short Answer: What is the solar cycle? The solar cycle is an approximately 11-year cycle experienced by the Sun. During the solar cycle, the Sun's stormy behavior builds to a maximum, and its magnetic field reverses. Then, the Sun settles back down to a minimum before another cycle begins.
25 kwi 2022 · The solar cycle describes an approximately 11-year cycle of solar activity driven by the sun's magnetic field and indicated by the frequency and intensity of sunspots visible on the surface.
