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The Sun is 1.4 million kilometers (4.643 light-seconds) wide, about 109 times wider than Earth, or four times the Lunar distance, and contains 99.86% of all Solar System mass. The Sun is a G-type main-sequence star that makes up about 99.86% of the mass of the Solar System. [26]
The sun may too bright and too powerful for us to look at with the naked eye, even from nearly 92 million miles away on Earth, but a solar orbiter recently got an unprecedented up-close glimpse of ...
[citation needed] If an adult's arms and legs are exposed to a half minimal erythemal UV radiation, it is the same as taking 3,000 IU of vitamin D 3 through an oral supplement. This exposure of 10–15 minutes, on a frequency of two to three times per week, will cause the adult's skin to produce enough vitamin D.
If the extraterrestrial solar radiation is 1,367 watts per square meter (the value when the Earth–Sun distance is 1 astronomical unit), then the direct sunlight at Earth's surface when the Sun is at the zenith is about 1,050 W/m 2, but the total amount (direct and indirect from the atmosphere) hitting the ground is around 1,120 W/m 2. [6]
The Sun is always the center of attention in our solar system, but 2024 was unique for a number of events that unfolded throughout the year – some we knew were coming and others that surprised us.
Interesting Facts for Adults. 11. If you cut down a cactus in Arizona, it can result in a class 4 felony and up to 25 years in prison. ... 18. A bolt of lightning is five times hotter than the sun ...
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Sunflowers with the Sun behind them. Sunflowers do not always point to the Sun. Flowering sunflowers face a fixed direction (often east) all day long, but do not necessarily face the Sun. However, in an earlier developmental stage, before the appearance of flower heads, the immature buds do track the Sun (a phenomenon called heliotropism ...