An exoplanet roughly the size of Neptune passes through the M3 dwarf NLTT 24399. It is given the name TOI-1231 b. An object
PFS is a sophisticated tool thatdetects exoplanets through their gravitational influence on host stars. As the planets revolve around their hosts, the stellar velocity changes periodically, revealing the presence of the planets and information about their mass and orbit.
The object has a 24-day orbital period andorbits the nearest dwarf star M3 NLTT 24399. The authors suggested that the exoplanet has a gaseous atmosphere as large as Neptune. The temperature is similar to that of Earth, thanks to the cooler and less luminous host star.
According to preliminary data, the temperature of the objectaround 60°C: TOI-1231b is one of the coolest small exoplanets on which atmospheric research can be conducted. TOI 1231b's low density indicates that it is surrounded by a dense atmosphere and is not a rocky planet.
Past research suggests that planets at this temperature may have clouds in their atmosphere, which could make it difficult to determine what types of gases surround them.
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