The sun has had multiple names over the centuries, including the French word "soleil," the Latin term "sol" from the ancient Romans and "helios" from the ancient Greeks. However, after Germany coined the term "sonne," the word translated into English became "sonne" and later just "sun," according to NASA.
As the name for the sun evolved over time, many cultures and countries adopted various versions of the title. The term "sol" was used in Spanish and Portuguese cultures, while Italy used a slight variation on the word, calling it "sole." The "sonne" name from Germany expanded to old Goth and old Norse cultures as well.
It wasn't until about 1610 that any traces of the sun were detected in the form of sunspots. Both Thomas Harriot and Galileo Galilei noticed these sunspots. However, the sunspots later vanished for some time. By around 1860, the sun had a coronal mass ejection, the first that was known in history.
The sun is classified as a G2V star. The "V" portion of this name is due to how brightly that the sun burns off hydrogen. Six different portions of the sun exist in total, including its visible surface, the radiative zone, its chromosphere, its convective zone, its corona (last layer) and its core (the innermost layer).Learn More
The sun is almost a perfectly round sphere. The sun is the one of the roundest natural objects ever measured, according to scientists at the University of Hawaii.Full Answer >
The sun is approximately 4.6 billion years old. It was formed when part of an immense molecular cloud underwent a gravitational collapse. The sun is a ball of gas, consisting of 92.1 percent hydrogen and 7.8 percent helium.Full Answer >
When a ring appears in the sky around the sun, it is called a halo. Halos have also been observed around the moon in the night sky.Full Answer >
The core is the hottest part of the sun, and it has a temperature of more than 15 million degrees Kelvin. The second hottest part of the sun is its outermost layer, the corona, which has a temperature in excess of 2 million degrees Kelvin.Full Answer >