Will IK Pegasi go supernova?

“IK Pegasi it will become a Type Ia supernova around 1.9 billion years from now. The system than will be too far away from the Sun, posing no threat to the Earth’s biosphere,” said Korschinek. “It is expected that Betelgeuse will undergo core-collapse at any time within the next 2 million years.

Will IK Pegasi affect Earth?

Such a supernova event may pose some threat to life on the Earth. It is thought that the primary star, IK Pegasi A, is unlikely to evolve into a red giant in the immediate future. After 5 million years, for example, this star will be separated from the Sun by more than 500 light years.

Is Deneb likely to become a supernova?

Other stars relatively close to us that could go supernova include Deneb, Rigel and Spica, the latter two visually close to Betelgeuse in the night sky. Research also suggests that a star called V Sagittae, 7,800 light years distant in the tiny constellation of Sagitta, could explode around the year 2083.

How far away is the nearest supernova?

50 to 100 light-years
Scientific literature cites 50 to 100 light-years as the closest safe distance between Earth and a supernova. Image of remnant of Supernova 1987A as seen at optical wavelengths with the Hubble Space Telescope in 2011. This supernova was the closest in centuries, and it was visible to the eye alone.

How big is the star system IK Pegasi?

IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.

Why does the star IK Pegasi have periodic pulsations?

However, IK Pegasi A lies in a narrow, nearly vertical band of the HR diagram that is known as the instability strip. Stars in this band oscillate in a coherent manner, resulting in periodic pulsations in the star’s luminosity. The pulsations result from a process called the κ-mechanism.

What is the HR diagram for IK Pegasi?

The Hertzsprung-Russell diagram (HR diagram) is a plot of luminosity versus a color index for a set of stars. IK Pegasi A is currently a main sequence star—a term that is used to describe a nearly linear grouping of core hydrogen-fusing stars based on their position on the HR diagram.

What is the effective surface temperature of IK Pegasi?

The effective surface temperature of IK Pegasi B is estimated to be about 35,500 ± 1,500 K, making it a strong source of ultraviolet radiation.