This star has been observed to make a rhythmic pattern on only one side. This is actually the cause of the gravitational forces distorting the planets into a teardrop shape.
Professor Don Kurtz stated that “We have known theoretically that stars like this should exist since the 1980s. I have been looking for a star like this for nearly 40 years, and now we have finally found one”.
The star was nicknamed HD74423, and it is about 1.7 times the mass of the Sun. It was found around 1,500 light-years from Earth, which is close to the Milky Way’s outer edges.
The mysterious star was found by using public data from NASA’s TESS satellite
Simon Murphy from the Sydney Institute for Astronomy stated that “What first caught my attention was the fact it was a chemically peculiar star. Stars like this are usually fairly rich with metals – but this is metal-poor, making it a rare type of hot star.”
Stars, including the Sun, are knows to spin in different rhythms and to varying degrees. Astronomers believe that this phenomenon is caused by the magnetic field forces that are found inside the star. The exact cause of the pulsations vary, and the spinning was always observed. Well, up until now.
We have heard that HD74423 only pulsates on one side. And we know the reason why. It happens because of its red dwarf companion. And together, they form a binary star system. They were found to do this close cosmic dance in the orbital period of two days, and the largest star has taken the shape of a teardrop.