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HIP 81208 B
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Star HIP 81208 B

Brown dwarf HIP 81208 B is located 477 light years away from the Sun. It is a single star, that has 6 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
477 light years
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HIP 81208 B

Brown dwarf

Location +

Distance iconDistance from the primary: 53.98 AU

Basic characteristic

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Mass: 6.4 % M Sun
| 67 M Jupiter
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Star mass
Mass of the star HIP 81208 B is 0.064 solar masses (or 67 Jupiter 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

Photometry

Magnitude iconAbsolute magnitude (V): -5.8
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3
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HIP 81208 B system structure

 HIP 81208 A
HIP 81208 B 53.98 AU
HIP 81208 Ca 234.27 AU
HIP 81208 Cb

More about HIP 81208 B

       HIP 81208 B can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
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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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icon study
icon study
icon study
icon study
icon study
icon study
A Spatial Map of the Atmospheric Limb of a Hot Jupiter
Scientific study, Accepted: 14. 10. 2026
icon study

News from this star system

WASP-33 b and other hot Jupiters identified as prime targets for structural studies
iconToday
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
iconToday
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
iconToday
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 HIP 81208 B system from the Sun?

The HIP 81208 B system is 477 light years or 146.1 parsecs from the Sun.

What galaxy is the HIP 81208 B star in?

The HIP 81208 B is in the Milky Way galaxy just like the Sun.

How many stars are in the HIP 81208 B system?

The HIP 81208 B is a single star, there are no other known stars in the system.

What type of star is the HIP 81208 B?

The star HIP 81208 B is a Brown dwarf star.

What temperature is the HIP 81208 B?

The primary in the HIP 81208 B system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
Class of stars Brown dwarf
Brown dwarfs are not really stars, because there is no thermonuclear fusion in their core. These objects are smaller and cooler than stars, but too massive to be considered planets.
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exoplanet iconAbout Stellar Catalog

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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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