Do Higher Mass Stars Live Longer? A star’s life expectancy depends on its mass. 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. Why are
Does High Mass Stars Live Longer Than Low Mass Stars? The incredibly rapid fusion rates mean that high-mass stars cannot live very long. – A 25 solar mass star only spends a few million years on the main-sequence (Remember the sun spends 10 billion years on the main sequence). When the core hydrogen is exhausted
What Does A Actual Star Look Like? What do the stars look like up close? … It’s a pretty ordinary, normal kind of star. So that’s what a star looks like up close. Some stars are bigger, some are smaller, some are hotter (and look bluish-white) and some are cooler (and may look yellow, orange,
Why Are Main Sequence Lifetimes Shorter For More Massive Stars Quizlet? Why does mass determine the main-sequence lifetime of a star? Because more massive stars burn fuel faster and therefore have shorter lives. Because more massive stars have more fuel and therefore have longer lives. Why do the most massive stars have the shortest lifetimes?
What Is The Gravity Of A Star? A white dwarf’s surface gravity is around 100,000g (9.84 ×105 m/s2) whilst the neutron star’s compactness gives it a surface gravity of up to 7×1012 m/s2 with typical values of order 1012 m/s2 (that is more than 1011 times that of Earth). Do stars have gravity? A star
How Do Stars Differ In Mass? In more massive (main sequence) stars, there is more matter and the pressure in the core is more. … This higher rate of energy generation helps balance the greater mass and the radius of these stars is more than those of low mass stars. The story is different in
Why Does The Brightness Of A Star Depend On Its Size And Temperature? As the size of a star increases, luminosity increases. If you think about it, a larger star has more surface area. That increased surface area allows more light and energy to be given off. Temperature also affects a star’s luminosity. Is the
How Old Is Polaris? Observation data Epoch J2000 Equinox Metallicity 112% solar Rotation 119 days Rotational velocity (v sin i) 14 km/s Age70 Myr Is Polaris a red giant? Polaris appears dim to us only because of its immense distance from Earth. In reality, the star is a behemoth — a yellow supergiant that’s in
How Does Our Sun Compare To Other Stars? The Short Answer: Our Sun is an average sized star: there are smaller stars and larger stars, even up to 100 times larger. Many other solar systems have multiple suns, while ours just has one. Our Sun is 864,000 miles in diameter and 10,000 degrees Fahrenheit on
What Are The Four Stages In The Life Cycle Of A Low Mass Star? For low-mass stars (left hand side), after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains