Saturday March 26, 2022 02:35 AM
Astronomers at the University of Pennsylvania have discovered an exoplanet TOI-3757 bits volume is slightly larger than that of Jupiter, but its mass is three times less, according to a report RT .
Washer opportunity arXiv.org, that scientists discovered this planet by the “transit” method, which includes searching for stars whose brightness curve decreases due to the passage of a large object in their background. The planetary nature of the signal detected in the star is confirmed TOI-3757 which belongs to red dwarfs of the spectral type Mby subsequent follow-up.
The radius of the planet TOI-3757 b It is 1.09 times larger than the radius of Jupiter, and its mass is about 0.268 that of Jupiter.
That is, its density is 0.27 grams per cubic centimeter, which makes it the least dense planet orbiting a star of the spectral type. MThe planet revolves around the original star once every 3.44 days at a distance of about 0.038 astronomical units, and the equilibrium temperature of the planet is estimated at 759 K.
The mother star is located TOI-3757 The planet orbits about 578 light years from Earth, has an estimated age of 7.1 billion years and an effective temperature of 3913 Kelvin. It is 37 percent lighter than the Sun, and contains the lowest metallic content (elements heavier than hydrogen) of all known red dwarfs with gas giants.
Source: Technology: The discovery of an exoplanet the size of Jupiter .. Know the details