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What are two factors that determine the brightness of a star?
distance from the sun and the age of the star
What factors determine a stars brightness seen from earth?
Distance from Earth, size of star, and temperature of star.
What factors determine a stars brightness as seen from earth?
Distance from Earth, size of star, and temperature of star.
What two major factors determine the size of a star?
The two major factors that determine the size of a star are its mass and its age. A star's mass dictates how much material there is to form the star, while its age influences the stage of its life cycle, which in turn affects its size.
What are three physical factors that determine a star's brightness?
Three physical factors that determine a star's brightness are its temperature (hotter stars are brighter), size (larger stars are generally brighter), and distance from Earth (the closer a star is, the brighter it appears).
Which two factors determine the characteristics of a star?
The two main factors that determine the characteristics of a star are its mass and its age. The mass of a star determines its temperature, size, luminosity, and lifespan. A star's age affects its stage in its life cycle, such as whether it is a young, main-sequence star or an older red giant.
How long do supernovae last and what factors determine their duration?
Supernovae typically last for a few weeks to a few months. The duration of a supernova is determined by factors such as the mass of the star, its composition, and the energy released during the explosion.
What two factors determine the characteristics of a star?
It's mass and it's stage of life.
What three factors determine the magnitude of star?
The apparent magnitude of a star is dependent on the star's size, temperature and distance from where it is observed. An absolute magnitude is determined by the same three factors, but the distance is fixed at 10 parsecs.
What 2 factors determine a star's apparent magnitude?
There are three factors, actually. The star's size and temperature determine the absolute magnitude, or how bright the star really is. Those two factors can be considered as one - the star's absolute magnitude. The absolute magnitude combined with our distance from the star determines its apparent magnitude, or how bright the star appears to be from Earth. So, a big, hot, super bright star very far away may have the same apparent magnitude as a small, cool star that's fairly close to the Earth.
How long a star lives and what it becomes at the end life depends primarily on its?
size
How long star live?
Stars live different lengths of time, depending on how big they are. A star like our Sun lives for about 10 billion years, while a star which weighs twenty times as much lives only 10 million years, about a thousandth as long.
