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Zeta Doradus
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Star Zeta Doradus

Binary star Zeta Doradus is located 38 light years away from the Sun. It consists of a yellow-white star and a orange star. 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 1.07 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)
+
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
+
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

Zeta Doradus A

Yellow-White star, High proper motion star
Spectral class: F9VFe-0.5

Location +

Ascension iconRight ascension: 5h 5m 30.597s
Declination iconDeclination: -57° 28' 19.850'' (southern hemisphere)
Parallax iconParallax: 85.523
Distance iconSun distance: 38.137 ly | 11.7 pc
Star position
The position of a star tells us where it appears in the sky, similar to how we use coordinates like latitude and longitude on Earth. In astronomy, the three main coordinates are right ascension, declination and distance. .. icon More about Star position in StellarGuide

Basic characteristic

icon weight
Mass: 107 % M Sun
| 1121 M Jupiter
+
Star mass
Mass of the star Zeta Doradus A 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: 110 % R Sun
| 11.2 R Jupiter
(estimate)
+
Star size
Radius of the star Zeta Doradus A is not known. Its estimated value based on other similar stars is about 110 % 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: 6404 K | 1.11 T Sun
+
Star temperature
Surface temperature of Zeta Doradus A is 6404 K, which is 111 % 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: 0.58 billions years | 0.13 Sun
+
Star age
Star Zeta Doradus A is 0.58 billion years old, which is about 0.13 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

Photometry

Magnitude iconApparent magnitude (V): 4.7
Magnitude iconAbsolute magnitude (V): 4.4
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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Zeta Doradus system structure

 Zeta Doradus B
Zeta Doradus A

More about Zeta Doradus

Nearby star Zeta Doradus is a main sequence star that fuses hydrogen atoms into helium. 
       Zeta Doradus can be found in southern celestial hemisphere, and it is possible to see it with naked eye.
Other designations of this star
GJ 1075, Gliese 1075, HIC 23708, HIP 23708, GJ 189, Gliese 189, * zet Dor, CPD−57° 735, FK5 189, HD 33262, HIP 23693, HIC 23693, HR 1674, SAO 233822, GC 6258, 2MASS J05053067-5728217, TIC 381949122, TYC 8514-2291-1, WDS J05055-5728A, Gaia EDR3 4763906879239461632
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External sources
simbad icon
Simbad database (* zet Dor)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 4763906879239461632)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Zeta Doradus system from the Sun?

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

What galaxy is the Zeta Doradus star in?

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

How many stars are in the Zeta Doradus system?

The Zeta Doradus system contains 2 stars.

What type of star is the Zeta Doradus?

The primary in the Zeta Doradus system is a Yellow-White star star.

What temperature is star Zeta Doradus?

The primary in the Zeta Doradus system has a temperature of 6404 K. Find out more about the temperature of stars in Stellar guide
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stellar brief logoStellar Brief

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27. 10. 2026
stellar brief logo
V1298 Tau b showed helium absorption during all four observed transits across four years, but its active host star may affect the signal. The latest findings also point to silicate clouds on TOI-561 b, a warped dust ring around CQ Tau, and a giant planet candidate near Boyajian's star that may be surrounded by vast rings. New atmospheric models reveal why gas compositions can vary across hot giant planets.
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