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By CNBCTV18.com Mar 28, 2023 1:08:01 PM IST (Published)
The closest planet, TRAPPIST-1 b, orbits the Sun at a distance roughly one hundredth that of Earth and absorbs roughly four times as much energy from it as Earth does.
An international team of researchers have measured the temperature of the rocky exoplanet TRAPPIST-1 by using the National Aeronautics and Space Administration’s (NASA) James Webb Space Telescope (JWST). The planet's thermal emission, which is identified by Webb's Mid-Infrared Instrument (MIRI), serves as the basis for the measurement. The outcome suggests that the planet has no significant atmosphere and that its dayside has a temperature of about 500 kelvins or approximately 450 degrees Fahrenheit.
The finding that there is no atmosphere present on the rocky exoplanet squashes hopes that this intriguing world might host life. Of the seven earth-like exoplanets in the TRAPPIST-1 Star system, TRAPPIST-1b orbits the closest to the parent star and is about 1.4 times as large as the earth.
The closest planet, TRAPPIST-1 b, orbits the Sun at a distance roughly one hundredth that of Earth and absorbs roughly four times as much energy from it as Earth does.