What is the shiniest star?
What is the shiniest star?
Sirius
What is the most massive star in the universe?
R136a1
Why do stars look like water?
The Filter of the Atmosphere Viewing the stars from Earth is a bit like looking at them through a a water filter because, compared to the emptiness of space, the atmosphere is dense. Moreover, air is always moving, so starlight appears to be shifting and shimmering.
Do stars we see still exist?
For the most part, the stars you see with the naked eye (that is, without a telescope) are still alive. These stars are usually no more than about 10,000 light years away, so the light we see left them about 10,000 years ago.
Do all stars eventually die?
All stars eventually run out of their hydrogen gas fuel and die. The way a star dies depends on how much matter it contains—its mass. As the hydrogen runs out, a star with a similar mass to our sun will expand and become a red giant.
Which star has the shortest lifespan?
red dwarfs
Can a star live forever?
No. Stars are born, live, and die. This process is called the “life cycle of a star”. Most of the time a star shines, it is in a stage of its life cycle called the main sequence.
Do big stars live longer?
1) The bigger a star is, the longer it will live. 2) The smaller a star is, the longer it will live. A smaller star has less fuel, but its rate of fusion is not as fast. Therefore, smaller stars live longer than larger stars because their rate of fuel consumption is not as rapid.
Where are stars born?
Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.
Why do stars last so long?
The length of a star’s life depends on how fast it uses up its nuclear fuel. Our sun, in many ways an average sort of star, has been around for nearly five billion years and has enough fuel to keep going for another five billion years. Almost all stars shine as a result of the nuclear fusion of hydrogen into helium.
Why do stars burn?
As the hydrogen fuel in a star gets converted to helium, and to some heavier elements, it takes more and more heat to cause the nuclear fusion. The mass of a star plays a role in how long it takes to “burn” through the fuel. As the star’s fuel begins to run out, the star begins to generate less heat.
Where do stars go when they die?
In its final death throes, a medium-size star spews out its guts to form an effervescent planetary nebula, thin wisps of gas and dust surrounding the now-exposed core of carbon and oxygen at the center. That core gets a new name when exposed to the vacuum of space: a white dwarf.
What is it called when a star dies?
Some types of stars expire with titanic explosions, called supernovae. When a star like the Sun dies, it casts its outer layers into space, leaving its hot, dense core to cool over the eons. A supernova can shine as brightly as an entire galaxy of billions of “normal” stars.