What is the star main source of energy?

What is the star main source of energy?


Which is known as the biggest star in the universe?

UY Scuti

What happens when a star becomes a supernova?

Having too much matter causes the star to explode, resulting in a supernova. As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova.

What are the 7 main types of stars?

There are seven main types of stars. In order of decreasing temperature, O, B, A, F, G, K, and M. O and B stars are uncommon but very bright; M stars are common but dim.. An easy mnemonic for remembering these is: “Oh be a fine guy/girl, kiss me.”

What letter are blue stars?

Types of Stars

Spectral Type Color Examples
O Blue-violet Stars of Orion’s Belt
B Blue-white Rigel
A White Sirius
F Yellow-white Polaris

Why are Type O stars rare?

Stars of this type are very rare, but because they are very bright, they can be seen at great distances and four of the 90 brightest stars as seen from Earth are O type. Due to their high mass, O-type stars end their lives rather quickly in violent supernova explosions, resulting in black holes or neutron stars.

What is the name of the coolest star?

According to a new study, a star discovered 75 light-years away is no warmer than a freshly brewed cup of coffee. Dubbed CFBDSIR 1458 10b, the star is what’s called a brown dwarf.

What is the coldest star color?


Are all stars actually 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).

What is the main fuel in stars?


What are the two conditions required for a star to be on the main sequence?

A main sequence star is powered by fusion of hydrogen into helium in its core. Fusion is stabilized by a natural pressure-temperature thermostat. High-mass main sequence stars have shorter lifetimes than low-mass main sequence stars.

Which star spends the longest time as a main sequence star?

Science Chapter 26

Which kind of star is most likely to spend the longest time on the main sequence? a low-mass red star
Low-mass and medium-mass stars eventually turn into _______. white dwarfs
What is a spinning neutron star emitting radio waves? pulsar
The sun’s major source of fuel is _____. hydrogen

Why do high mass stars die faster?

Generally, the more massive the star, the faster it burns up its fuel supply, and the shorter its life. The most massive stars can burn out and explode in a supernova after only a few million years of fusion.

What is a giant star called?

Subclasses of giants are supergiants, with even larger radii and brightness for their masses and temperatures (see supergiant star); red giants, which have low temperatures but are of great brightness; and subgiants, which have slightly reduced radii and brightness.

What is a giant supergiant?

A star classed as a supergiant may have a diameter several hundred times that of the Sun and a luminosity nearly 1,000,000 times as great. Supergiants are tenuous stars, and their lifetimes are probably only a few million years, extremely short on the scale of stellar evolution.

What is the difference between a giant star and a supergiant star?

What is the difference between a giant star and a supergiant star? Giant stars have radii between 10 and 100 solar radii and luminosities between 10 and 1,000 times that of the Sun. Whereas Supergiants have radii between 30 and 1,000 solar radii and luminosities between 30,000 and 100,000 times that of the Sun.

What color is a giant star?


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