According to the study, the discovered planets belong to the class of super-Jupiters and mini-Neptunes.
The TESS space telescope continues to search for new planets located outside the solar system, that is, exoplanets. More than 5,000 of these objects are considered potential planets, but scientists need time to confirm this status. According to a study published in the journal Astronomy & Astrophysics, astronomers have confirmed the existence of three planets that are located in two different star systems and orbit stars very similar to the Sun, writes Universe Today.
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The discovered planets, which belong to the class of super-Jupiters and mini-Neptunes, orbit around very similar stars to the Sun called TOI-2141 and TOI-1736. The first star is 250 light-years from Earth, and the second is 290 light-years away.
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The star TOI-2141 is slightly older than the Sun in age, but is almost the same size. The star TOI-1736 is about the same age as the Sun, about the same temperature, but it is slightly larger in size. Moreover, this star is a double star, that is, it has a smaller companion.
Astronomers have discovered only one planet near the star TOI-2141, called TOI-2141b, which belongs to the class of mini-Neptunes.
What is known about planet TOI-2141b?
- It is 3 times the size of Earth;
- 24 times the Earth’s mass;
- It has a rocky core and an atmosphere possibly filled with water gas;
- The surface temperature is 450 degrees Celsius;
- The planet completes a full revolution around the star in 18 days.
Scientists believe that most likely there is only one planet in this star system.
In the star system TOI-1736, astronomers have discovered two planets that orbit a larger star in a binary system. The planets were named TOI-1736b and TOI-1736c.
The discovered planets, which belong to the class of super-Jupiters and mini-Neptunes, orbit around very similar stars to the Sun called TOI-2141 and TOI-1736. The first star is 250 light-years from Earth, and the second is 290 light-years away.
Photo: ESO/L. Calçada
What is known about planet TOI-1736b?
- Scientists believe it is a mini-Neptune;
- It is 2.5 times larger than the Earth in size;
- The planet is 13 times larger than Earth in mass;
- It takes 7 days to complete a revolution around a star;
- The surface temperature is 800 degrees Celsius.
What is known about planet TOI-1736c?
- Scientists believe it is a massive super-Jupiter;
- The mass of the planet is 9 times the mass of Jupiter;
- Astronomers believe that this gas giant has many satellites, and one of them could potentially contain liquid water on the surface.
The authors of the study say that there may be another, third planet in the same star system. But more data is needed to confirm or refute this hypothesis.
As I already wrote Focus, astronomers have discovered for the first time an impact crater on Jupiter’s moon Io, although it was believed that there were none there. Scientists believed that Io is the only world in the solar system without craters, but it turns out that this is not the case.
