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T Coronae Borealis B
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Star T Coronae Borealis B

White dwarf T Coronae Borealis B is located 2987 light years away from the Sun. It is a single star, that has 137 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
2987 light years
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T Coronae Borealis B

White dwarf

Location +

Distance iconDistance from the primary: 0.54 AU

Basic characteristic

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Mass: 137 % M Sun
| 1435 M Jupiter
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Star mass
Mass of the star T Coronae Borealis B is 1.37 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
luminosity icon
Luminosity: 100 L Sun
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Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide
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T Coronae Borealis B system structure

 T Coronae Borealis A
T Coronae Borealis B 0.54 AU

More about T Coronae Borealis B

       T Coronae Borealis B can be found in northern celestial hemisphere.
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External sources
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Scientific study, Accepted: 29. 12. 2026
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A Sample of Thick-Disk Stars Hosting Hot Jupiters
Scientific study, Accepted: 16. 10. 2026
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A Spatial Map of the Atmospheric Limb of a Hot Jupiter
Scientific study, Accepted: 14. 10. 2026
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News from this star system

WASP-33 b and other hot Jupiters identified as prime targets for structural studies
iconYesterday
Image: WASP-33 b and other hot Jupiters identified as prime targets for structural studies
WASP-33 b, WASP-76 b, and HAT-P-32 b are identified as the best candidates for studying how stellar gravity shapes exoplanet interiors. Measuring their physical deformation will help reveal their deep, internal density structures using JWST and Ariel data....
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Atmospheric structure of WASP-94 A b revealed through new limb asymmetry method
iconYesterday
Image: Atmospheric structure of WASP-94 A b revealed through new limb asymmetry method
A new analysis of WASP-94 A b reveals a 415 K temperature difference between its morning and evening sides. The evening atmosphere shows signs of H2O, CO2, CO, and H2S, while the morning side remains obscured by aerosols....
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Thick-disk stars identified as hosts to ancient hot jupiter planets
iconYesterday
Image: Thick-disk stars identified as hosts to ancient hot jupiter planets
New analysis of 268 stars identifies several hot Jupiters orbiting ancient stars in the Milky Way's thick disk. These systems, over 8 billion years old, show distinct differences in mass and orbital periods compared to younger thin-disk populations....
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Frequently Asked Questions

How far is the T Coronae Borealis B system from the Sun?

The T Coronae Borealis B system is 2987 light years or 915.8 parsecs from the Sun.

What galaxy is the T Coronae Borealis B star in?

The T Coronae Borealis B is in the Milky Way galaxy just like the Sun.

How many stars are in the T Coronae Borealis B system?

The T Coronae Borealis B is a single star, there are no other known stars in the system.

What type of star is the T Coronae Borealis B?

The star T Coronae Borealis B is a White dwarf star.

What temperature is the T Coronae Borealis B?

The primary in the T Coronae Borealis B system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
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exoplanet iconAbout Stellar Catalog

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Working with real data
icon Data in Stellar Catalog come from trusted scientific sources. Primary source is Gaia space telescope mapping the stars in Milky Way. Other sources include research papers, Simbad catalog and Exoplanet.eu database.
Estimated values
icon Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.
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icon Stellar Catalog is continuously updated with new information from research papers. Stellar and planetary data are validated by automatic processes as well as humans.
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Stellar Catalog brings the stars from our galaxy to you. Discover their position, physical properties and whether there are any exoplanets or disks orbiting them. The data in Stellar Catalog come from respectable sources like Gaia space telescope, or SIMBAD database.
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