Two New Exoplanets Found Orbiting a Star in Draco Constellation 6c6s1q Technology News

Astronomers have discovered a super-Earth and a sub-Neptune orbiting TOI-1453, a binary star system in Draco. 1u3s2h

Written by Gadgets 360 Staff | Updated: 2 April 2025 22:55 IST

Two New Exoplanets Found Orbiting a Star in Draco Constellation

Photo Credit: Terranaut/Pixabay 5v3xs

Two New Exoplanets Discovered Orbiting a Binary Star in Draco

Highlights

Super-Earth and sub-Neptune detected around TOI-1453
Discovered using NASA’s TESS and HARPS-N spectrograph
Planets may help explain why similar types are absent in our solar syst

ment

Two planets outside the Milky Way galaxy yet neither is present in our solar system. The host star, known as TOI-1453, is slightly cooler and smaller compared to the Sun. These planets were found around a binary star system which features two stars orbiting each other.

Details of the discovery 6s1312

According to the NASA's Transiting Exoplanet Survey Satellite and the High Accuracy Radial Velocity Planet Searcher for the Northern hemisphere spectrograph based in Spain. The TESS satellite identified these planets through the transit method which monitors reductions in a star's brightness when a planet es in front of it. Complementary measurements were obtained through the HARPS-N spectrograph which detects shifts in a star's light caused by the gravitational pull of orbiting planets.

Characteristics of TOI-1453 b and TOI-1453 c 5p5y1b

As per information shared by the University of Liège astrophysicist Manu Stalport, TOI-1453 b is categorised as a super-Earth slightly larger than Earth and believed to be rocky. It completes an orbit around its star in just over four days suggesting that it is extremely close to its host star. The planet's proximity is likely to make its surface temperature very high.

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In contrast, TOI-1453 c has been classified as a sub-Neptune and is nearly twice the size of Earth. Its mass is comparatively low at approximately 2.9 Earth masses which has raised questions about its density and composition. Astronomers believe that it may contain a hydrogen-rich atmosphere or a water-dominated interior.

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