A new exoplanet has been discovered using the ESPRESSO spectrograph

(ORDO NEWS) — Using the ESPRESSO spectrograph, astronomers from Switzerland and Austria have discovered a new exoplanet that is four times as massive as Earth.

ESPRESSO is a state-of-the-art ultra-stable high resolution spectrograph installed at the Very Large Telescope (VLT) in Chile.

ESPRESSO covers the spectral range from approximately 380 to 788 nm. The instrument is able to detect Earth-like planets that orbit sun-like stars.

L 363-38 is a dwarf star of spectral type M, located approximately 33.3 light years from Earth. Scientists observed the star from December 12, 2020 to February 08, 2022 and discovered a new planet.

The planet L 363-38 b has a minimum mass of about 4.67 Earth masses, and its radius is estimated to be between 1.55 and 2.75 Earth radii.

The exoplanet orbits its parent star every 8.78 days at a distance of about 0.048 AU. The equilibrium temperature of L 363-38 b is approximately 330 K.

The parent star L 363-38 (other designations: LHS 1134, GJ 3049), estimated to be 8 billion years old, has a radius of about 0.274 solar radii and a mass of about 0.21 Sun. The effective temperature of this star is 3129 K.

Astronomers believe that several more planets that have not yet been discovered can rotate around L 363-38.

Their search requires follow-up observations of this planetary system with the James Webb Space Telescope (JWST).


Contact us: [email protected]

Our Standards, Terms of Use: Standard Terms And Conditions.