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A brown dwarf is not massive enough to create the heat and pressure at its core needed for nuclear fusion.

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What is a failed star?

A "failed star" is a loose term, to describe a ball of hydrogen and helium, that didn't have enough mass to initiate nuclear fusion and become a "real" star. These "stars" are known as brown dwarfs. [See related question]. Some people believe Jupiter is a failed star, but this is not the case.


The distance from the earth to the cosmos kubasik galaxy?

The Kubasik Galaxy does not exist in real life. The nearest galaxy to Earth, Andromeda is about 2.5 million light years away. The nearest dwarf galaxy, Canis Major Dwarf, is a mere 0.025 million light years away


When was Pluto proven not to be a real planet?

Pluto was proven not to be a real planet in 2006 because it is too small it has a diameter around 2,000 km and that's too small for Pluto to be a real planet!


What is the real name for your sun?

Um, this IS the real name of the sun. Sometimes, it's referred to as "medium-yellow star".Actually its a Yellow dwarf star. and its real name is Sol by the Romans or Helios by the Greek people. but the scientific name for the sun is Sol and it is a G2V star, it also is a white star but from us it is yellow because of its magnitude and distance.


What does the word ''dwarf planet'' mean?

dwarf planets are mini celestial bodies that orbit around the sun but are too small to be classed as a real planet pluto was recently demoted from 'planet' to 'dwarf planet' A dwarf planet is one of the smallest "planets" in our solar system. They aren't classed as proper planets. They must be roughly spherical and orbit the Sun. (They aren't moons.) However, they don't "dominate" their region of space like an "official" planet. Dawf planet is a smaller planet compared to the earth and jupiter Thy are composed of rock and ice.