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Stars shine because they are gigantic burning hot gas spheres that release heat and light. They are so bright because there are atomic reactions inside them, that convert hydrogen into helium. Their temperature can reach 10.000 degrees centigrade.
What else can I help you with?
How does the hertzsprung Russell diagram classify stars?
increase in absolute brightness as they increase in temperature.Increase in brightness as they increase in temperature
What compares the brightness of stars as if they were the same distance from earth?
midorz
What is similarities between apparent brightness and absolute brightness?
Both relate to brightness; both are measured in the same units; both are used for astronomical objects such as stars or galaxies.
Are stars different sizes and brightness?
Yes! Some stars are supergiants, which means that they are high-mass stars. They explode in a supernova towards the end of their life. These stars are generally brighter than others. A star's brightness also depends on its temperature. Red stars are the coolest temperature, followed by orange, yellow, white and blue stars.
Where does the actual brightness of the stars depends?
The actual brightness of stars, known as their intrinsic luminosity, depends primarily on their temperature, size, and energy output. Hotter and larger stars emit more energy and therefore appear brighter. Additionally, the composition of a star, including its age and the presence of elements, can also influence its luminosity. Ultimately, a star's brightness is a combination of these factors, along with its distance from Earth, which affects how we perceive its brightness from our vantage point.
What process of losing their outer layer causes stars to lose?
luminosity or brightness
Do stars have the same brightness and sizes?
No. Stars vary greatly in size and brightness.
Which two groups of stars can have similar brightness?
Variable stars and main sequence stars can have similar brightness. Variable stars, like Cepheid variables, can fluctuate in brightness over time, while main sequence stars maintain a relatively stable brightness due to their fusion processes.
What is a stars brightness known as?
A star's brightness is known as its magnitude. Stars with lower magnitude numbers are brighter than stars with a higher magnitude number.
What causes the apparent brightness or size of stars constellations and galaxies?
The size of stars depends on their mass and the stage of their life cycle. Constellations are just stars which happen to lie in the same general direction from Earth, and have nothing really to do with each other. Apparent brightess of a star or galaxy is the result of its intrinsic brightness and its distance from us.
Temperature and brightness of stars are indicated by what?
Temperature of stars is indicated by their color, with blue stars being hotter than red stars. Brightness of stars is indicated by their luminosity, which is how much light a star emits.
What is the measure of a stars brightness?
Magnitude.
Is shape affects the brightness of the stars?
no
In main-sequence stars how does brightness relate to temperature?
The brightness is very similar to the temperature, the brightness relies on the temperature
What determines how bright stars are?
Size and temperature determine the brightness of stars.
Stars that can change their brightness?
the moon can vary its brightness and the pink elephant called aphadophalis
The temperature and brightness of stars are indicated by?
its color :)
