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Through a comparison of solar luminosity and temperature seen with the H-R diagram. On this diagram, stars sharing the same temperature but different luminosities show measurable differences in radius as well as mass. So if two stars both have the same visible surface temperature but one is more luminous, it has to be larger. This is further explained by Stefan Boltzmann's law,
L=(4πR^2 x sigma(constant) x T^4)
A Star with the the same surface temperature with larger surface area results in more Luminosity.
What else can I help you with?
Is Pollux a white dwarf star?
No, Pollux is not a white dwarf star. It is an orange giant star that is nearing the end of its life cycle. White dwarfs are remnants of stars like the Sun after they have exhausted their nuclear fuel.
How do scientists classify a star by size?
Scientists classify stars by size based on their mass. Stars can be categorized as dwarf stars (like our Sun), giant stars, or supergiant stars, with the size increasing as the mass of the star increases. The classification can also include specific categories such as red dwarfs, white dwarfs, or blue giants, depending on additional characteristics.
How do super giant and giant and white dwarf stars compare to your star?
A Giant is a star up to 10 times larger than our SunA Super giant is a star 10 times larger than our SunA white dwarf is a stellar remnant about 100 times smaller than our Sun.
Is a giant Alpha Centauri?
No. Alpha Centauri is a three-star system consisting of two stars similar in size to the sun and a red dwarf.
Are dwarf stars black holes?
no, dwarf stars don't have enough mass
Which is denser a dwarf star or a giant star?
A dwarf star is denser than a giant star. Dwarf stars have a higher density due to their smaller size and higher mass compared to giant stars. Giant stars have larger volumes and lower densities as they have expanded and become less dense towards the end of their life cycle.
What are the five main groups of stars?
The five main groups of stars are main sequence stars, giant stars, supergiant stars, white dwarf stars, and neutron stars. These groups are classified based on their size, temperature, and stage in their life cycle.
What kind of stars form red giants?
when Dwarf Stars run out of hydrogen they form Red Giant stars, then from that they become White dwarf stars when the outer layers shed, forming a planetary nebula.when giant stars or supergiant stars run out of hydrogen they form red supergiant stars
White Dwarf is one of the final stages in?
A stars evolution. Our Sun will go yellow dwarf -> red giant -> white dwarf -> black dwarf.
Why do some dwarf stars appear brighter than giant stars?
Because they are closer or actually brighter.
How are giant stars and white dwarf related?
A giant star is a dying star that expanded, and the core shrinks are the same time. When the shell of the giant star drift into space as planetary nebula, the core became a white dwarf. The white dwarf is made from the core of the giant star.
Is Sirius a giant?
No. Sirius consists of two stars. Sirius A is larger than the sun but is not a giant. Sirius B is a white dwarf,
Whats the life cycle of the stars?
A star's life cycle starts from a nebula. For giant stars, the star turns into a huge star to a super red giant to a supernova to a black hole. A sun-like star turns to a red giant, then a planetary nebula, a white dwarf, and then a black dwarf.
What are different sizes or stars?
Stars can be classified into different sizes based on their mass and luminosity. The most common sizes are dwarf stars (like our Sun), giant stars (larger and more luminous than the Sun), and supergiant stars (the largest and most luminous stars, like Betelgeuse and Rigel). There are also intermediate sizes like subgiant stars.
Why do you call the sun a dwarf star?
Despite being larger than most stars, the sun is called a yellow dwarf because it is far smaller than the giant and supergiant stars.
Is bellatrix a dwarf or giant?
Bellatrix is a giant. In general most stars with "names" (as opposed to designations) are NOT dwarfs, with a few notable exceptions such as Proxima.
Why is a star white?
stars are not always white there are many different types of star for example: Black Dwarf Red Giant White Dwarf Blue Giant Neutron they are all varying colors because of the configurations of gas and energy of particals. however 97% of our galaxy's stars are the fabled white dwarf these are white because they are expelling there entire energy at once, the white dwarf is the final stage of a stars life, aside from the purely theoretical black dwarf
