0
the brightness of a star is dependant on its temperature and radius.
however, while a star is burning hydrogen into helium (which all stars do for most of their lifespan and it's usually this kind of object we mean when we say "star") a correlation does exist between the mass of the star and its luminosity (brightness)
What else can I help you with?
Do stars have the same brightness and sizes?
No. Stars vary greatly in size and brightness.
How does mass vary Along the main sequence?
Mass generally increases along the main sequence from low-mass stars like red dwarfs to high-mass stars like blue giants. This means that stars that are more massive are typically hotter, larger, and brighter than low-mass stars. Mass is a key factor that determines a star's temperature, luminosity, and lifetime.
Do stars vary greatly in size and color only.?
No. Stars vary in lots of aspects, including:* Diameter * Mass * Color (and the related surface temperature) * Chemical composition * Density (related to mass and diameter) * 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 are the 3 ways in which stars may differ from each other?
Brightness, Color and mass
Do stars have the same brightness and sizes?
No. Stars vary greatly in size and brightness.
What do you call two revolving stars of unequal brightness?
Two stars revolving around one another (around their center of mass, to be precise) are called a "binary star". There is no special name for the case that the brightness is unequal; this is actually the usual case.
How does mass vary Along the main sequence?
Mass generally increases along the main sequence from low-mass stars like red dwarfs to high-mass stars like blue giants. This means that stars that are more massive are typically hotter, larger, and brighter than low-mass stars. Mass is a key factor that determines a star's temperature, luminosity, and lifetime.
Do stars vary greatly in size and color only.?
No. Stars vary in lots of aspects, including:* Diameter * Mass * Color (and the related surface temperature) * Chemical composition * Density (related to mass and diameter) * Brightness
How are stars ranked according to temperature and brightness?
To do so, astronomers calculate the brightness of stars as they would appear if it were 32.6 light-years, or 10 parsecs from Earth. Another measure of brightness is luminosity, which is the power of a star - the amount of energy (light) that a star emits from its surface.
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.
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 would you tell someone who thinks that all stars are very similar be sure to discuss temperature and brightness?
While stars share similarities in that they are massive, luminous celestial bodies fueled by nuclear fusion, their temperatures and brightness can vary greatly. Stars can range in temperature from thousands to millions of degrees Kelvin, affecting their color and spectral characteristics. Similarly, their brightness, or luminosity, is influenced by factors such as size, mass, and stage of evolution. Therefore, not all stars are similar in terms of temperature and brightness.
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.
