KOMPAS.com – Sun is a very hot ball of incandescent gas. The sun consists of four layers, namely the core Sunphotosphere, chromosphere, and corona.
Humans living on Earth see and feel the presence of the Sun every day during the day.
The object is not a planet but a yellow dwarf star 4.5 billion years old. The sun is a hot glowing ball of hydrogen and helium at the center of this solar system.
Also read: The History of Jagorawi, the First Toll Road in Indonesia Opened March 9, 1978
Facts about the Sun
Quoted from the page NASA, It is about 93 million miles (150 million kilometers) from Earth and is the only star in the solar system or Milky Way galaxy.
The study of the Sun is called heliophysics. The following is a brief profile of Matahari:
- Day length: 25 Earth days at the equator and 36 Earth days at the poles.
- Year length: The sun does not have a “year” of its own. But the Sun orbits the center of the Milky Way every 230 million Earth years, carrying planets, asteroids, comets, and other objects with it.
- star type: G2 V, yellow dwarf main sequence star
- Surface temperature (Photosphere): 10,000 degrees Fahrenheit (5,500 degrees Celsius)
- Corona temperature (solar atmosphere): up to 3.5 million degrees Fahrenheit (2 million degrees Celsius)
- Sun core temperature (hottest part): up to 27 million degrees Fahrenheit (15 million degrees Celsius).
Without the energy of the Sun, life as it exists today would not exist on Earth. It is the largest object in this solar system. Its diameter is about 865,000 miles (1.4 million kilometers).
Its gravity holds the solar system together and keeps everything from the largest planet to the smallest debris in orbit around it.
Although very large, the Sun is an average-sized star. A star 100 times more massive than the Sun has been discovered. In addition, many solar systems have more than one star.
Also read: 8 Planets in the Solar System Facts and Possible Ninth Planet
The sun has been called by many names. Its Latin name is “sol”, which is the main adjective for all things related to the Sun (solar).
The sun is also called Helios. It was like the name of the Sun god in ancient Greek mythology. The word is often used as a term, including heliosphere and helioseismology.
Also read: Is There Evidence of Aliens or Life on Other Planets?
Orbit and rotation
The sun is located in the Milky Way galaxy in a spiral arm called the Orion Spur. It extends out from the Sagittarius arm.
On its way the Sun orbits the center of the Milky Way, bringing with it the planets, asteroids, comets, and other objects in this solar system.
The solar system is moving at an average speed of 450,000 miles per hour (720,000 kilometers per hour). Despite its fast speed, it takes about 230 million years for the Sun to make one full trip around the Milky Way.
The sun rotates on its axis as it circles the galaxy. The spin has an inclination of 7.25 degrees with respect to the plane of the planet’s orbit.
Since the Sun is not dense, different parts rotate at different speeds. At the equator, the Sun rotates once every 25 Earth days, but at the poles, the Sun rotates once on its axis every 36 Earth days.
The sun formed about 4.6 billion years ago in a giant rotating cloud of gas and dust called the solar nebula.
As the nebula collapsed, it rotated faster and flattened into a disk. Most of the nebula material was pulled towards the center and formed the Sun, which accounts for 99.8 percent of the mass of the solar system.
Most of the remaining material formed the planets and other objects that now orbit the Sun.
Also read: Do not dry the baby directly in the sun, this is what the doctor says
How the sun dies
Just like any other star, the Sun will eventually run out of energy and die.
Upon his death, the Sun will expand into a red giant star that is so large that it can swallow Mercury, Venus, and even Earth.
Scientists estimate that the Sun will last 5 billion years or more before it becomes a white dwarf.
Get updates news of choice and breaking news every day from Kompas.com. Let’s join the Telegram group “Kompas.com News Update”, how to click the link https://t.me/kompascomupdate, then join. You must first install the Telegram application on your cellphone.–