(CNN) NASA's planet-hunting TESS mission has only been surveying the sky since July, but it's already making incredible discoveries.

In January, three exoplanet discoveries were connected to the initial observations from TESS. Now, data collected by TESS has determined a new Saturn-size planet.

TOI (TESS Object of Interest) 197.01 is considered to be a "hot Saturn." It's similar in size to that planet and orbits its host star at a close distance, circling it every 14 days, which creates a high surface temperature on the planet. The planet is described in a paper that will be published in The Astronomical Journal.

Asteroseismologists discovered the planet by studying seismic waves called starquakes in stars where the brightness appears to shift. The astronomers can determine the age of the star, as well as its mass and radius. Combining that data with other observations reveals the properties of the exoplanets that orbit these host stars.

The exoplanet is a gas giant with a radius nine times that of Earth and about 60 times the mass of Earth. The host star is 5 billion years old and slightly heavier and larger than our sun.

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