The National Aeronautics and Space Administration (NASA) of USA has discovered a new planet. It is the third new planet discovered by the NASA mission, Transiting Exoplanet Survey Satellite (TESS).
1. The new planet HD 21749b is outside our solar system and orbits a dwarf star 53 light years away.
2. It has the longest orbital period of all the three discoveries made by TESS.
3. HD 21749b orbits a bright star in the constellation Reticulum.
4. HD 21749b orbits its star in a relatively leisurely 36 days.
The Transiting Exoplanet Survey Satellite (TESS) mission of NASA is an explorer mission which is undertaking an all-sky survey to search for planets transiting nearby stars. The objective of the TESS mission is to discover planets smaller than Neptune that transit stars bright enough to enable follow-up spectroscopic observations that can provide planet masses and atmospheric compositions. The other two discoveries made by the TESS probe are Pi Mensae b and LHS 3844b. Pi Mensae b has an orbit of 6.3 days and LHS 3844b has an orbit of just 11 hours.