Quasi Star:-

quasi star, quasi star vs sun, quasi star compared to sun, how big is the quasi star, is quasi star real, biggest star in the universe, largest star in the universeA quasi-star (also called black hole star) is a hypothetical type of extremely massive star that may have existed very early in the history of the Universe. Unlike modern stars, which are powered by nuclear fusion in their cores, a quasi-star's energy would come from material falling into a central black hole. A quasi-star is predicted to have formed when the core of a large protostar collapses into a black hole during its formation and the outer layers of the star are massive enough to absorb the resulting burst of energy without being blown away (as they are with modern supernovae); such a star would have to be at least 1,000 solar masses (2.0×1033 kg).[1] These stars may have also been formed by dark matter halos drawing in enormous amounts of gas via gravity, in the early universe, which can produce supermassive stars with tens of thousands of solar masses.[2][3] Stars this large could only form early in the history of the Universe before the hydrogen and helium were contaminated by heavier elements; thus, they may have been very massive Population III stars. The larger the size of a star is, the shorter the lifespan. The Sun has a lifespan of about 10 billion years of which it is roughly halfway through. A red dwarf star such as Proxima Centauri can expect to live for over eight trillion years as it is more efficient at using its fuel.
quasi star, quasi star vs sun, quasi star compared to sun, how big is the quasi star, is quasi star real, biggest star in the universe, largest star in the universeA Quasi-Star is believed to only live for about seven million years. Quasi-stars like other giant stars are not very efficient in using their fuel, they live fast, die young to use the old expression.

The temperatures of a Quasi-star is around 4,000 Kelvin which to put in context might seem hot. The Sun's temperature is a mere 5,778 Kelvin so Quasi-stars for all their size are actually cooler than the Sun. The hottest known star is Foramen.
A Quasi-star could be as large as 10 billion kilometres or roughly larger than 7,000 times the radius of the Sun. 10 billion kilometres is equivalent to roughly 67 A.U. To put that in context, Pluto is about 40 A.U. from the Sun. One A.U. or Astronomical Unit is the distance from the Sun to the Earth.

The New Horizons probe took 10 years to get from Earth to Pluto, it would roughly take another 5 years to reach the outside of the Quasi-star if it was trying to escape one. The New Horizons probe is the fastest probe that we have sent out into the far reaches out of Solar System. Even with the speed it is going, New Horizons will not encounter another solar system once it leaves our for hundreds of thousands of years.
quasi star, quasi star vs sun, quasi star compared to sun, how big is the quasi star, is quasi star real, biggest star in the universe, largest star in the universe

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