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HD 181327
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Star HD 181327

Yellow-White star HD 181327 is located 156 light years away from the Sun. It is a single star of spectral class F5/6, that has 139 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
156 light years
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HD 181327

Yellow-White star
Spectral class: F5/6

Basic characteristic

icon weight
Mass: 139 % M Sun
| 1456 M Jupiter
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Star mass
Mass of the star HD 181327 is 1.39 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
radius icon
Size: 132 % R Sun
| 13.1 R Jupiter
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Star size
Radius of the star HD 181327 is 1.32 solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 6498 K | 1.12 T Sun
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Star temperature
Surface temperature of HD 181327 is 6498 K, which is 112 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide
time icon
Age: 0.025 billions years | 0.01 Sun
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Star age
Star HD 181327 is 0.025 billion years old, which is about 0.01 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age in StellarGuide
luminosity icon
Luminosity: 0.44 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

Photometry

Magnitude iconAbsolute magnitude (V): -3.4
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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HD 181327 system structure

 Eta Telescopii A
Eta Telescopii B 218 AU
HD 181327
HD 181327 Disk 83 AU -
HD 181327 b
unconfirmed
 84 AU 635.8 M⊕ -

More about HD 181327

HD 181327 is is approximately 32 % bigger than the Sun and temperature on its surface is around 6498 K (6225 °C), which is about 112 % of Sun's temperature.
       HD 181327 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope.
Other designations of this star
Gaia DR3 6643589352010758400
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External sources
icon study
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Scientific study, Accepted: 29. 12. 2026
icon study
A Sample of Thick-Disk Stars Hosting Hot Jupiters
Scientific study, Accepted: 16. 10. 2026
icon study
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
gaia icon
Gaia database (Gaia DR3 6643589352010758400)
Archive from the Gaia mission

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....
Read article tag icon

Frequently Asked Questions

How far is the HD 181327 system from the Sun?

The HD 181327 system is 156 light years or 47.8 parsecs from the Sun.

What galaxy is the HD 181327 star in?

The HD 181327 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 181327 system?

The HD 181327 is a single star, there are no other known stars in the system.

What type of star is the HD 181327?

The star HD 181327 is a Yellow-White star star.

What temperature is star HD 181327?

The star HD 181327 has an effective temperature of 6498 K. Find out more about the temperature of stars in Stellar guide
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