By Victor Duda
They are massive and usually in the later stages of their evolution, contain little hydrogen, but rich in helium. O-type stars-hot blue-white spectral class o stars in the Yerx classification system used by astronomers. Their temperature exceeds 30,000 Kelvin. Both of the celestial bodies are very rare, but they are clearly visible due to brightness. Detection of WR 140 allows scientists to learn more about this phenomenon.
Yes, the stars from the constellation of the swan have a wonderful orbit of movement - not round, but elliptical. Scientists have created an animation that shows the trajectory of body movement. The closer the stars to the point of intersection of orbits (periastra), the more affected by their star winds. The latter differ in huge power, their speed reaches 3000 km/s. They literally blow the planet's dust shell into space, forming something like a bubble.
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