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Epsilon Reticuli B
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Star Epsilon Reticuli B

White dwarf Epsilon Reticuli B is located 60 light years away from the Sun. It is a single star of spectral class DA3.3, that has 60 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
60 light years
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Epsilon Reticuli B

White dwarf
Spectral class: DA3.3

Basic characteristic

icon weight
Mass: 60 % M Sun
| 629 M Jupiter
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Star mass
Mass of the star Epsilon Reticuli B is 0.6 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: 1.3 % R Sun
| 0.1 R Jupiter
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Star size
Radius of the star Epsilon Reticuli B is 0.0132 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: 15310 K | 2.65 T Sun
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Star temperature
Surface temperature of Epsilon Reticuli B is 15310 K, which is 265 % 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: 1.5 billions years | 0.33 Sun
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Star age
Star Epsilon Reticuli B is 1.5 billion years old, which is about 0.33 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): 12.5
Magnitude iconAbsolute magnitude (V): 11.2
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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Epsilon Reticuli B system structure

 Epsilon Reticuli A
Epsilon Reticuli A b 1.27 AU 495.9 M⊕ 428.1 days
Epsilon Reticuli B

More about Epsilon Reticuli B

Epsilon Reticuli B is is is much smaller than the Sun and temperature on its surface is around 15310 K (15037 °C), which is about 265 % of Sun's temperature.
       Epsilon Reticuli 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.
Other designations of this star
ε Reticuli B, CPD−59°324B, HD 27442B, WDS J04165-5918B, WD 0415-594, Gaia DR3 4678664766393827328
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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 (* eps Ret B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia DR3 4678664766393827328)
Archive from the Gaia mission

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....
Read article tag icon
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....
Read article tag icon

Frequently Asked Questions

How far is the Epsilon Reticuli B system from the Sun?

The Epsilon Reticuli B system is 60 light years or 18.3 parsecs from the Sun.

What galaxy is the Epsilon Reticuli B star in?

The Epsilon Reticuli B is in the Milky Way galaxy just like the Sun.

How many stars are in the Epsilon Reticuli B system?

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

What type of star is the Epsilon Reticuli B?

The star Epsilon Reticuli B is a White dwarf star.

What temperature is star Epsilon Reticuli B?

The star Epsilon Reticuli B has an effective temperature of 15310 K. Find out more about the temperature of stars in Stellar guide
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