Star TOI 1173 B
Red dwarf TOI 1173 B is located 431 light years away from the Sun.
It is a single star, that has typically about 25 % of solar mass.
For now, there are no known exoplanets in this star system.
Frequently Asked Questions
How far is the TOI 1173 B system from the Sun?
The TOI 1173 B system is 431 light years or 132.2 parsecs from the Sun.
What galaxy is the TOI 1173 B star in?
The TOI 1173 B is in the Milky Way galaxy just like the Sun.
How many stars are in the TOI 1173 B system?
The TOI 1173 B is a single star, there are no other known stars in the system.
What type of star is the TOI 1173 B?
The star TOI 1173 B is a Red dwarf star.
What temperature is the TOI 1173 B?
The primary in the TOI 1173 B system has an effective temperature of K ( °C). Find out more about the temperature of stars in
Stellar guide
Class of stars Red dwarf
Red dwarfs are small, cool stars with surface temperatures of about 2,000–3,800 K, much cooler than the Sun. They usually have 8–50% of the Sun’s mass and shine very faintly, sometimes at just a tiny fraction of the Sun’s brightness. Classified mainly as spectral type M, they are the most common stars in the Milky Way, making up roughly 70–75% of its stellar population.
They fuse hydrogen slowly through the proton–proton chain and are fully convective, which allows them to use their fuel very efficiently. As a result, red dwarfs can live for tens of billions to trillions of years—far longer than the Sun. Many exoplanets orbit red dwarfs, including some in close habitable zones, though strong stellar activity can affect planetary environments.
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Distance from the primary: 
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