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Zeta Doradus B
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Star Zeta Doradus B

Orange star Zeta Doradus B is located 38 light years away from the Sun. It is a single star, that has 53 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
38 light years
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Zeta Doradus B

Orange star, High proper motion star

Basic characteristic

icon weight
Mass: 53 % M Sun
| 555 M Jupiter
+
Star mass
Mass of the star Zeta Doradus B is 0.53 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: 50 % R Sun
| 5.2 R Jupiter
(estimate)
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Star size
Radius of the star Zeta Doradus B is not known. Its estimated value based on other similar stars is about 50 % 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: 3702 K | 0.64 T Sun
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Star temperature
Surface temperature of Zeta Doradus B is 3702 K, which is 64 % 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

Photometry

Magnitude iconApparent magnitude (V): 8.9
Magnitude iconAbsolute magnitude (V): 8.6
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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Zeta Doradus B system structure

 Zeta Doradus B
Zeta Doradus A

More about Zeta Doradus B

Zeta Doradus B is approximately 50 % of the size of Sun and temperature on its surface is around 3702 K (3429 °C), which is about 64 % of Sun's temperature.
       Zeta Doradus B 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
GJ 1075, Gliese 1075, HIC 23708, HIP 23708, Gaia EDR3 4763897739549071744
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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
simbad icon
Simbad database (CD-57 1079)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 4763897739549071744)
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....
Read article tag icon
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....
Read article tag icon
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 Zeta Doradus B system from the Sun?

The Zeta Doradus B system is 38 light years or 11.7 parsecs from the Sun.

What galaxy is the Zeta Doradus B star in?

The Zeta Doradus B is in the Milky Way galaxy just like the Sun.

How many stars are in the Zeta Doradus B system?

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

What type of star is the Zeta Doradus B?

The star Zeta Doradus B is a Orange star star.

What temperature is star Zeta Doradus B?

The star Zeta Doradus B has an effective temperature of 3702 K. Find out more about the temperature of stars in Stellar guide
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