(ORDO NEWS) — Using data from the NASA Transiting Exoplanet Survey (TESS) satellite, scientists have discovered the planet TOI 700 e.
The planet orbits within the habitable zone of its star. TOI 700 e is 95% larger than Earth and is most likely a rocky planet.
Astronomers have previously discovered three planets in this system – TOI 700 b, c and d. Planet d also orbits in the habitable zone.
TOI 700 is a small, cool M-dwarf located about 100 light-years away in the southern constellation Dorado. In 2020, scientists announced the discovery of planet d, which orbits this star along with two other worlds.
The orbital period of TOI 700 e is 28 days. Planet e lies between planets c and d in the optimistic habitable zone.
Scientists define an optimistic habitable zone as the range of distances from a star where liquid surface water could have been present at some point in the planet’s history.
This region extends on either side of the conservative habitable zone, a range where researchers speculate that liquid water could have existed for most of the planet’s life. TOI 700 d rotates in this area.
Scientists continue to study the TOI 700 system using space and ground-based observatories.
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