Exoplanet X109A is an intriguing discovery, as it has an orbital period of 420 Earth days, making its year only slightly longer than Earth's. The mass of X109A is approximately 1.5 times that of Earth, which may suggest a larger size or a denser composition. A notable difference is the average temperature, which is -35°C, considerably colder than Earth's average temperature, limiting the likelihood of liquid water or life as we know it. Further studies would be needed to determine the exoplanet's atmosphere, composition, and potential for habitability.
Exoplanet X109A has an orbital period of 420 Earth days, a mass of about 1.5 times the Earth's mass, and an average temperature of -35°C.
You are an astronomer who discovered a new exoplanet. Describe its distinguishing features and how it compares to Earth.