Search results
Results From The WOW.Com Content Network
The Sun is nearly a perfect sphere of hot plasma. The average surface temperatures are at around 5.778 K, but they vary since it is composed out of three layers. Our Sun is an enormous energy and light-producing sphere of glowing gases. Though it is the hottest object in the solar system, other stars are far hotter, even tens of times so.
The Sun is almost a perfect sphere. It is the closest thing to a sphere found in nature with only a 6.2 mile (10 kilometres) difference between its vertical and horizontal measurements. The Sun’s core is extremely hot! An unthinkable 13,600,000 degrees Celcius! The Sun has a very big magnetic field.
The Sun is located in the center of the Solar System. It is a nearly perfect sphere of hot plasma, essentially, a hot ball of glowing gases. It is the most important source of energy for life on Earth. The Sun has a diameter of around 1.39 million kilometers / 864,000 miles. This is 109 times greater than the diameter of our planet.
When illuminated by the sun, the surface of the moon can reach up to 127 degrees Celsius (260 Fahrenheit). When the illuminated side moves into darkness, the temperature falls significantly. Since the sun no longer heats the surface, the moon’s surface can drop to -232 Celsius (-387 F). These are the coldest temperatures in our solar system ...
Venus is the second closest planet to the Sun, at a distance of 108.2 million km/ 67.24 mi or 0.7 AU receiving the sun’s light in 6 minutes. Venus has a radius of 6.051 km or 3.760 miles and a diameter of 12.104 km or 7.521 mi, slightly smaller than Earth. It has a mass of 4.87 × 10 24 kg, or 85% that of Earth.
Arcturus has a mass of around 1.1 times that of our Sun. This star emits energy – luminosity – between 100 to 200 times greater than our sun. Its average temperature is around 4.000 degrees C / 7.200 degrees F – or around 73% as hot as our sun. Arcturus has an apparent visual magnitude of – 0.5.
Since the Earth moves around the Sun, the distance differs, with Earth’s closest point from the Sun – perihelion – reaching 147.5 million km / 91.3 million mi. When it comes to Earth’s farthest point from the Sun – aphelion – it is around 152 million km / 94.5 million mi, a little over 1 AU away from the Sun.
A red giant star is formed when a star, like our Sun, burns all of its hydrogen and helium supplies. This process can take up to 10 billion years. When a star becomes a red giant, it will start to expand and become denser. It will then start burning helium to carbon for a couple of million of years until, eventually, the helium runs out.
Betelgeuse is a variable star, with an apparent magnitude varying between +0.0 and +1.13. Betelgeuse is a red supergiant of spectral type M1-2, it has the widest range of varying magnitude out of any first-magnitude star. It can be seen with the naked eye and its mass has been estimated to be around 10 – 20 +, that of our Sun.
Sirius B, on the other hand, is almost five times as hot as the sun. It has surface temperatures around 25.000 degrees Celsius / 45.000 degrees Fahrenheit. Sirius was known to the ancients due to its immense brightness, and as such, it was well represented in the mythologies of many different cultures.