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Basically, the amount of hydrogen (mass).
The more mass a star has, the greater the pressure in the core. The greater the pressures in the core, the higher the temperature, the higher the temperature, the hotter the star will be, the hotter the star, the blighter the envelope will be.
What else can I help you with?
Who is a giant in one city and dwarf in another?
That was Gulliver.
What will happen to your sun after it becomes a red giant?
After becoming a red giant, our sun will eventually shed its outer layers, forming a planetary nebula while the core collapses to form a white dwarf. The white dwarf will continue to cool and dim over billions of years until it becomes a cold, dark remnant known as a black dwarf.
What is an old cold star called?
An old cold star is called a brown dwarf. These are objects that are not massive enough to sustain nuclear fusion in their cores, so they emit little to no light or heat compared to regular stars. They are often referred to as "failed stars" or "sub-stellar objects."
How cold is a red giant?
The surface temperature of a red giant star can range from about 2,600 to 3,700 degrees Celsius. This is relatively cooler compared to younger main sequence stars like the sun, which has a surface temperature of about 5,500 degrees Celsius.
How hot or cold is Eris the dwarf planet?
Cold, it's the furthest dwarf planet from the Sun (that we know about)
Are big stars cold?
No. All stars are hot. For stars on the main sequence, the largest it is, the hotter it is. When a star leaves the main sequence to become a giant or supergiant it will cool down, but will remain hot enough to glow brightly.
How does a black dwarf star form?
A white dwarf is the last stage of a low mass stars life. After a red giant is done fusing helium to carbon and oxygen, the star will collapse to a white swarf. White dwarves are usually between 15,000-6,000 kelvins.A white dwarf is formed when a small or medium-sized star runs out of fuel in its core. The star becomes a red giant and later blow off the shell into the interstellar space. The remaining core becomes a white dwarf.
What is a cold star?
It is called a Black Dwarf
What is the name of the coldest star and its temperature?
Black - Blue. Black stars have cooled off completely (some are huge hunks of carbon (diamond!). Stars that are progressively warmer are brown, red, orange, yellow, then blue, blue-white are the hottest.
WHAT THE 4 STAGES OF AVERAGE STARS?
Average stars, like our Sun, undergo four main stages in their lifecycle: Main Sequence: This is the longest phase where the star fuses hydrogen into helium in its core, producing energy and stabilizing its structure. Red Giant: Once the hydrogen in the core is exhausted, the star expands and cools, becoming a red giant as it begins fusing helium into heavier elements. Planetary Nebula: Eventually, the outer layers are ejected, forming a colorful shell of gas known as a planetary nebula, while the core remains. White Dwarf: The remaining core, now a white dwarf, gradually cools and fades over billions of years, eventually becoming a cold, dark remnant.
What does the giant anteater use as a blanket on cold nights?
The giant anteater uses its tail as a blanet on cold nights.
How are betelgeuse and pollux stars alike?
Both Betelgeuse and Pollux are close to the end of their life. Both of the stars are large and cold in surface temperature. One difference is that Betelgeuse is a red supergiant, and Pollux is an orange giant.
