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Transiting Exoplanet Survey Satellite (TESS) has recently discovered a new
planetary system. It has been named as TOI 270.
270 is about 73 light years away from Earth, and is located in the
members of the planetary system include a dwarf star (TOI 270), which is 40% smaller
than the Sun in size and mass, and the three planets or exoplanets (planets
outside the solar system).
exoplanets have been named TOI 270 b, TOI 270 c, and TOI 270 d. TOI 270 b is
the innermost planet.
270 c and TOI 270 d are Neptune-like planets because their compositions are
dominated by gases rather than rock.
three planets orbit the star every 3.4 days, 5.7 days, and 11.4 days
Exoplanet Survey Satellite (TESS) is an all-sky survey mission that seeks to
discover exoplanets around nearby bright stars. It was launched in April 2018, aboard
a SpaceX Falcon 9 rocket.