SupernovaĪ larger star with more mass will go on making nuclear reactions, getting hotter and expanding until it explodes as a supernova.Īn exploding supernova throws hot gas into space. In this instance, the star becomes a white dwarf which fades and changes colour as it cools. Rigel is the seventh brightest star in the sky at magnitude +0.1, while Betelgeuse is around magnitude +0.4 or +0.5 and normally the ninth or tenth. When all the nuclear reactions are over, a small star like the Sun may begin to contract under the pull of gravity. Normally, Betelgeuse, the bright, orange-red star, marking the left shoulder of the giant, is only a little fainter than Rigel, the blue-white star to the bottom-right of the constellation. VY Canis Majoris: Mass is between 15 and 30 solar masses. When all the hydrogen has been used up in the fusion process, larger nuclei begin to form and the star may expand to become a red giant. Barring newer models that suggest that lower mass stars can in special circumstances upon core collapse become black holes, Betelgeuse will likely end up as a neutron star. The Sun is at this stable phase in its life.
Main sequence starĭuring this stable phase in the life of a star, the force of gravity holding the star together is balanced by higher pressure due to the high temperatures. And so you know, Betelgeuse will soon explode, and he will become a. If J2157 could replace the supermassive black hole that sits at the center of our Milky Way galaxy, to us on Earth, it would look ten times brighter than the. The fusion process releases energy, which keeps the core of the star hot. To become a black hole, the sun must have at least the mass of the star Betelgeuse. A star is formed when it is hot enough for the hydrogen nuclei to fuse together to make helium.
The plasma envelope we call its atmosphere, has expanded vastly due to a shortage of galactic electric current. ProtostarĪs the mass falls together it gets hot. Answer (1 of 7): Betelgeuse is a red super giant star for one reason, it is being starved of energy. Gravity begins to pull the dust and gas together. Red super giant star \(\rightarrow\) supernova \(\rightarrow\) neutron star, or a black hole (depending on size) A nebulaĪ star forms from massive clouds of dust and gas in space, also known as a nebula. As Im sure you know, whether a massive star becomes a black hole or neutron after going supernova is almost entirely dependent on the stars initial mass. Stars that are far greater in mass than the Sun follow the right hand path: Red giant star \(\rightarrow\) white dwarf \(\rightarrow\) black dwarf Stars that are a similar size to the Sun follow the left hand path: Following this, stars develop in different ways depending on their size. A cloud of dust and gas, also known as a nebula, becomes a protostar, which goes on to become a main sequence star. The diagram shows the life cycles of stars that are:Īll stars begin life in the same way. The life cycle for a particular star depends on its size.
0 kommentar(er)
