- What star has a temperature of 20000 K?
- Can lava melt diamonds?
- What is hotter than lava?
- What is hotter plasma or lava?
- What is the biggest thing in the universe?
- What if our sun was a blue giant?
- What is the closest star to Earth?
- Why do stars twinkle?
- What are the hottest stars in order?
- Is the sun hotter than lava?
- Is our sun white?
- Is the sun the hottest star in the universe?
- What is the hottest star in the galaxy?
- Which star is the coldest?
- How hot is the biggest star in the universe?
- What color is the coolest star?
- What is the coldest color?
- Are all stars white?
What star has a temperature of 20000 K?
O stars are the hottest, with temperatures from about 20,000K up to more than 100,000K.
These stars have few absorption lines, generally due to helium.
These stars burn out in a few million years..
Can lava melt diamonds?
To put it simply, a diamond cannot melt in lava, because the melting point of a diamond is around 4500 °C (at a pressure of 100 kilobars) and lava can only be as hot as about 1200 °C.
What is hotter than lava?
The sun is much hotter than lava. Surface temparature of the sun is 10,000 degrees F, while Lava averages only 2000 degrees F. Lava’s temperature is between 700 to 1200 degrees Celsius and the surface of the sun is around 10,000 degrees celsius.
What is hotter plasma or lava?
The sun is much hotter than lava. If lava were exposed to the sun, it would get so hot, it would evaporate from liquid to a gas, then explode from gas to plasma. The Sun Is much, much hotter than lava. … Lava can reach a temperature of 1,250 degrees Celsius on Earth.
What is the biggest thing in the universe?
Hercules-Corona Borealis Great WallThe largest known ‘object’ in the Universe is the Hercules-Corona Borealis Great Wall. This is a ‘galactic filament’, a vast cluster of galaxies bound together by gravity, and it’s estimated to be about 10 billion light-years across!
What if our sun was a blue giant?
Red stars have temperature around 2000- 3000K and blue stars around 10000–20000K. So imagine if sun would be a blue star, it would be so hot that it would become nearly impossible for a planet at a distance as earth to sustain life.
What is the closest star to Earth?
Proxima CentauriDistance Information Proxima Centauri, the closest star to our own, is still 40,208,000,000,000 km away. (Or about 268,770 AU.)
Why do stars twinkle?
As light from a star races through our atmosphere, it bounces and bumps through the different layers, bending the light before you see it. Since the hot and cold layers of air keep moving, the bending of the light changes too, which causes the star’s appearance to wobble or twinkle.
What are the hottest stars in order?
The seven main types are M, K, G, F, A, B and O. M stars are the coldest stars and O stars are the hottest. The full system contains other types that are hard to find: W, R, N, and S. The closest star to the Earth, the sun, is a class G star.
Is the sun hotter than lava?
But even lava can’t hold a candle to the sun! At its surface (called the “photosphere”), the sun’s temperature is a whopping 10,000° F! That’s about five times hotter than the hottest lava on Earth. … A temperature of 27 million degrees Fahrenheit is more than 12,000 times hotter than the hottest lava on Earth!
Is our sun white?
The color of the sun is white. The sun emits all colors of the rainbow more or less evenly and in physics, we call this combination “white”. That is why we can see so many different colors in the natural world under the illumination of sunlight.
Is the sun the hottest star in the universe?
No, the Sun is not the hottest star in the universe. … Our star (the Sun) burns at ~5500 C, and is approximately ‘white’. When you look at stars in the night sky, you can guess their temperature based on their color. Any star that looks blue is burning much hotter than a red star.
What is the hottest star in the galaxy?
A TEAM of British astronomers has discovered the hottest star in the galaxy. With a surface temperature of 170,000 degrees, it glows 30 times hotter than our own sun. About 600 light years away in the constellation of Draco the Dragon, the star is a white dwarf with the unromantic name of RE1502+66.
Which star is the coldest?
The temperatures on this brown dwarf – a star without the mass to burn nuclear fuel and radiate light – is between minus-54 and 9 degrees Fahrenheit. Brown dwarfs lack the mass to shed light or much heat, making them hard to detect without a telescope that can use an infrared lens.
How hot is the biggest star in the universe?
As she explained when contacted, the largest stars in the Universe are the coolest. So even though Eta Carinae is the most luminous star we know of, it’s extremely hot – 25,000 Kelvin – and therefore only 250 solar radii big. The largest stars, in contrast, will be cool supergiants.
What color is the coolest star?
Red starsYou can tell a lot about a star by its color. You can tell the temperature of the star. Red stars are the coolest. Yellow stars are hotter than red stars.
What is the coldest color?
BlueBased on the color wheel, we notice that some colors or their shades give us a feeling of warmth or coolness. Blue represents the coldest area in front of the orange (complementary color of blue see complementary colors) which, in turn, is the hottest sector.
Are all stars white?
All stars are white because they emit all wavelengths. Having said that their temperatures mean that they will have a bluer or redder tint, so their spectral class will be red, orange, yellow, yellow-white, white blue-white and blue (Classes M (orC&S), K, G, F, A, B & O).