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What else can I help you with?
Are there dwarf stars other than red and white like maybe blue?
Yes there are a few more [See related link for more information].--- Main sequence stars -----Red dwarf Yellow dwarfBlue dwarf (hypothetical)--- Degenerate stars --------White dwarf Black dwarf (hypothetical)--- Sub stellar stars -------Brown dwarf.
What is formed as a white dwarf loses its energy and is smaller than a black dwarf?
As a white dwarf loses energy and cools down, it eventually transitions into a black dwarf. A black dwarf is a hypothetical stellar remnant that has cooled to the point where it no longer emits heat or light. It is smaller and denser than a white dwarf.
How cold is a black dwarf?
A black dwarf is a hypothetical stellar remnant, created when a white dwarf becomes sufficiently cool to no longer emit significant heat or light.The crucial point is hypothetical, as the time required for a white dwarf to reach this state, is older than the Universe itself.Estimates place the temperature to be around 0.06 to 5 kelvin.
What stars are dwarf stars?
Most of the stars you can see are dwarf stars.Blue dwarf - Hypothetical star when a red dwarf exits the main sequence.White dwarf - Remnants of a Solar class star when it dies.Yellow dwarf - A star similar to our own SunOrange dwarf - A star just a bit smaller than our Sun.Red dwarf - A star which fuses hydrogen very slowly. The most abundant.Black dwarf - Hypothetical star when a white dwarf cools to zeroBrown dwarf - A "star" that did not have enough mass to fuse hydrogen.Examples:Blue dwarf - Unknown.White dwarf - 40 Eridani, IK Pegasi BYellow dwarf - The Sun, Alpha Centauri A,Orange dwarf - Alpha Centauri B, Epsilon Indi.Red dwarf - Proximus Centauri, Gliese 581Black dwarf - Unknown.Brown dwarf - 2M1207b, MOA-2007-BLG-192Lb.
What is old cold star?
That means that it's a start, that it's old, and that it's cold.Basically it might refer to a black dwarf - a hypothetical star that doesn't exist yet, but which it is assumed will exist in the far future - a white dwarf that has cooled down.
What is the size of dwarf stars?
Several times smaller than our Sun. Details vary, depending on the type of dwarf star (a red dwarf and a white dwarf are quite different things), and the exact mass.
What type of stars has a low temperature and high luminosity?
A white dwarf.A white dwarf.A white dwarf.A white dwarf.
Why would a white dwarf become a red dwarf?
A white dwarf could not become a red dwarf. A white dwarf is a remnant of a dead star. A red dwarf is a star with a very low mass.
What is the hottest star out of the dwarf stars?
A newly formed white dwarf will be the hottest of the "dwarfs" - at a temperature of over 150,000 K but this will slowly cool over time. There is a possibility of a hypothetical blue dwarf, when a red dwarf exhausts it's supply of hydrogen. However, because of the slow speed of fusion of a red dwarf, the Universe is not yet old enough to have created a blue dwarf, so no measurements can be made on it's possible temperature.
Are white dwarf stars always white?
No in the life cycle of a star, a white dwarf can cool and become a black dwarf
What is a cooled white dwarf star that is extremely dense?
A cooled white dwarf is a black dwarf. I think you are thinking of a neutron star which has nothing to do with a white dwarf.
Is there such thing as a dead star?
Yes. A black dwarf. However it's formulation is a hypothetical stellar remnant, created when a white dwarf becomes sufficiently cool to no longer emit significant heat or light. Since the time required for a white dwarf to reach this state is calculated to be longer than the current age of the universe of 13.7 billion years, no black dwarfs are expected to exist in the universe yet
