During the monitoring of outer space telescope TESS, specializing in the "hunt" for exoplanets, discovered a new type of celestial body. The size of it is comparable to Neptune, but it is located very close to the parent star with a surface temperature of about 1725 degrees.
The find was called LTT 9779b. It is built around the orbit is very similar to the Sun star located 260 light-years from Earth. One revolution LTT 9779b makes for 19 hours. Researchers confused by the fact that the open celestial body is too close to the star.
As a rule, this arrangement is typical either for small planets like the Earth or for bodies comparable to the size of Jupiter or larger. But LTT 9779b is 4.6 times larger than our planet and exceeds its mass by 29.3 times, that is, it belongs to the class of medium planets. The temperature of the surface of the find is 1725° C, which refers it to the class of ultra-hot bodies.
Scientists explained this location LTT 9779b initial formation of the planet in close proximity to the star and further gradual migration towards the approach. The researchers wondered how quickly it would lose mass to explain why only one ultra-hot Neptune had been discovered to date. If the process of mass loss is too dynamic, it becomes clear that scientists simply did not have time to detect such planets, as they rapidly turned into a stone core, losing the gas shell.