New Earth-like Exoplanet LTT 1445 Ac Discovered 22 Light Years Away
A rocky exoplanet with similar gravity to Earth has been discovered just 22 light years away, but its surface temperature of 300 degrees Celsius makes it unlikely to support life, according to recent findings from the National Aeronautics and Space Administration (NASA).
Bringing Earth’s Twin to Light
NASA recently unveiled detailed properties of ‘LTT 1445 Ac’, an Earth-sized exoplanet located near our solar system. This planet was first spotted by the TESS exoplanet probe telescope in 2022 and has since been under close observation using the Hubble Space Telescope.
‘LTT 1445 Ac’ orbits ‘LTT 1445’, a red dwarf star much smaller and cooler than the Sun, with a swift 3.1-day cycle, placing it in the direction of the constellation Eridanus, 22 light years from Earth. Red dwarfs are a common type of star, making up around 70% of all stars in the galaxy, but ‘LTT 1445’ presents a unique binary system with two additional red dwarfs.
What makes ‘LTT 1445 Ac’ Unique
The exoplanet is similar in size to Earth and boasts a rocky surface and gravity akin to our home planet, but its scorching surface temperature of approximately 260 degrees Celsius sets it apart. The diameter of ‘LTT 1445 Ac’ is 1.07 times the diameter of Earth, indicating its similarity in size.
NASA and the European Space Agency (ESA) have organized observations of ‘LTT 1445 Ac’ using the James Webb Space Telescope, recognizing the importance of studying celestial bodies reminiscent of Earth for potential insights into the composition of their atmospheres.
Exploring Beyond the Solar System
Since the 1990s, NASA and ESA have been engaged in a serious exploration of exoplanets beyond our solar system, with over 5,000 discoveries to date. Researchers estimate that there are approximately 100 billion exoplanets in our galaxy, encompassing our own solar system.
“Close-to-Earth celestial bodies require closer observation,” noted a NASA official, emphasizing the significance of studying ‘LTT 1445 Ac’ due to its vicinity to Earth and the potential for detailed observation through the James Webb Space Telescope.
Reporter: Jeong Ian
Email: anglee@sputnik.kr
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An exoplanet very similar to Earth has been discovered just 22 light years away. This planet is rocky and has similar gravity to Earth, but its surface temperature approaches 300 degrees Celsius, so life is unlikely to exist.
On the 20th, the National Aeronautics and Space Administration (NASA) presented the detailed properties of ‘LTT 1445 Ac’, an Earth-sized exoplanet located near the solar system, through its official SNS.
‘LTT 1445 Ac’ is located 22 light years away from Earth in the direction of the constellation Eridanus. NASA has been closely analyzing ‘LTT 1445 Ac’, first discovered by the TESS exoplanet probe telescope in 2022, via the Hubble Space Telescope.
Image of exoplanet LTT 1445 Ac <사진=NASA 공식 홈페이지>
According to NASA, ‘LTT 1445 Ac’ is similar in size to Earth. It orbits ‘LTT 1445’, a red dwarf much smaller and cooler than the Sun, with a cycle of 3.1 days. Red dwarfs are common enough to account for around 70% of all stars in the galaxy, but ‘LTT 1445’ is a unique binary system with two additional red dwarfs.
A NASA official said, “The Hubble Space Telescope found that the diameter of ‘LTT 1445 Ac’ is 1.07 times the diameter of the Earth when the Earth rotates six times. This exoplanet has a rocky surface and gravity similar to that of Earth, but the surface temperature is “It’s quite high, about 260 degrees Celsius,” he said.
NASA and ESA have organized the James Webb Space Telescope observations of the exoplanet LTT 1445 Ac. <사진=NASA 공식 홈페이지>
Since the 1990s NASA and the European Space Agency (ESA) have seriously investigated exoplanets distributed outside the solar system. More than 5,000 have been discovered so far, and scholars estimate that there are about 100 billion exoplanets in our galaxy, which includes our solar system.
A NASA official said, “Among the many exoplanets, close-to-Earth celestial bodies need closer observation,” and added, “LTT 1445 Ac’ is a rare terrestrial planet close enough to Earth to know the composition of its atmosphere, so it can be observed through the James Webb Space Telescope “Detailed observation is required,” he explained.
Reporter Jeong Ian anglee@sputnik.kr
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