VY Canis Majoris is an enormous supergiant or hypergiant located in the constellation of Canis Major. It is more than 1. It was listed as a 7 th magnitude star and further investigations conducted between the 19 th and 20 th centuries suggested that the star has been fading since It was first described as a crimson star, while observations progressed it was discovered that VY Canis Majoris was a strong source of OH 1.
Many molecules have been detected have also been detected. It was listed as a long-period variable with a photographic magnitude range of 9. Thus, because of this, it was given the designation VY Canis Majoris in , the 3 rd variable star of the constellation of Canis Major.
VY Canis Majoris is embedded within the large molecular cloud called Sh Molecular clouds of gas and dust are responsible for many star births. In the case of VY Canis Majoris, it was formed around 10 million years ago when gravity pulled swirling gas and dust together. VY Canis Majoris is a very young star, and it is believed that it evolved from an O9 main-sequence star which initially had between 5 — 20 solar radii. The star evolved quickly due to its high mass and has spent its time in the red hypergiant phase for around VY Canis Majoris is situated at around 3.
It is one of the biggest stars ever observed and detected in the Milky Way galaxy. VY Canis Majoris has been estimated to have around 17 solar masses, and it is believed that it's lost more than half its mass. If this hypergiant would be placed in the center of the solar system , its surface would extend beyond the orbit of Jupiter , and some estimate it would extend up to the orbit of Saturn.
It is an extreme oxygen-rich and pulsating variable star. It has an apparent magnitude that varies from 6. This hypergiant is losing its mass to a rate of around 30 times the mass of Earth every single year. Much of this material has taken the shape of a cloud of dust and gas around the star. It is speculated that the hypergiant has already lost more than half of its mass.
The hypergiant is around VY Canis Majoris is cooler than our sun, with an estimated surface temperature of around 3. Our Sun has around 5. It will remain in this phase for a few hundred thousand years. Once it finally runs out of fuel in its core, the star will collapse down and become a core-collapse supernova. This is where the central regions of the star become a neutron star or black hole, and the outer regions are ejected into space.
For a few days or weeks, the wreckage of the explosion will outshine the rest of the galaxy, and be easily visible from here on Earth. Skip to content. Like this: Like Loading
0コメント