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Epsilon Reticuli
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Star Epsilon Reticuli

Binary star Epsilon Reticuli is located 60 light years away from the Sun. It consists of a orange star and a white dwarf. There is at least one exoplanet in this system.
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Sun distance
60 light years
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Epsilon Reticuli A

Orange star, High proper motion star
Spectral class: K2III C

Location +

Ascension iconRight ascension: 4h 16m 28.933s
Declination iconDeclination: -59° 18' 10.441'' (southern hemisphere)
Parallax iconParallax: 54.229
Distance iconSun distance: 60.145 ly | 18.4 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: 146 % M Sun
| 1529 M Jupiter
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Star mass
Mass of the star Epsilon Reticuli A is 1.46 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: 318 % R Sun
| 31.6 R Jupiter
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Star size
Radius of the star Epsilon Reticuli A is 3.18 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: 4630 K | 0.8 T Sun
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Star temperature
Surface temperature of Epsilon Reticuli A is 4630 K, which is 80 % 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: 2.89 billions years | 0.63 Sun
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Star age
Star Epsilon Reticuli A is 2.89 billion years old, which is about 0.63 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: 6.2 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 iconApparent magnitude (V): 4.4
Magnitude iconAbsolute magnitude (V): 3.1
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

Epsilon Reticuli B

White dwarf, , High proper motion star
Spectral class: DA3.3

Basic characteristic

icon weight
Mass: 60 % M Sun
| 629 M Jupiter
+
Star mass
Mass of the star Epsilon Reticuli B is 1.46 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
+
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
+
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
+
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 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

       Epsilon Reticuli can be found in southern celestial hemisphere, and it is possible to see it with naked eye.
Other designations of this star
ε Reticuli B, CPD−59°324B, HD 27442B, WDS J04165-5918B, WD 0415-594, * eps Ret, GEN# +1.00027442, IRAS 04156-5925, TIC 198079199, ** JSP 56A, GJ 167.3, Gliese 167.3, JP11 882, TYC 8508-2041-1, AKARI-IRC-V1 J0416290-591809, Gliese 9153, GJ 9153, 2MASS J04162902-5918078, UBV 4189, CCDM J04165-5918A, GSC 08508-02041, PLX 958, UBV M 10085, CPC 20 1085, HD 27442A, PLX 958.00, uvby98 100027442, CPD-59 324, HD 27442, PPM 333351, WDS J04165-5918A, CSI-59 324 41, HIC 19921, SAO 233463, WEB 3804, FAUST 538, HIP 19921, SKY# 6536, [BBW2000] FD 58, GC 5194, HR 1355, SPOCS 209, Gaia DR2 4678664766394767616, GCRV 2468, IDS 04148-5932 A, TD1 3044, Gaia DR3 4678664766393829504
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External sources
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

Frequently Asked Questions

How far is the Epsilon Reticuli system from the Sun?

The Epsilon Reticuli system is 60 light years or 18.4 parsecs from the Sun.

What galaxy is the Epsilon Reticuli star in?

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

How many stars are in the Epsilon Reticuli system?

The Epsilon Reticuli system contains 2 stars.

What type of star is the Epsilon Reticuli?

The primary in the Epsilon Reticuli system is a Orange star star.

What temperature is star Epsilon Reticuli?

The primary in the Epsilon Reticuli system has a temperature of 4630 K. Find out more about the temperature of stars in Stellar guide
Closest stars

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L 178-49
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CPD-64 303
 - 7.1 ly

UCAC4 141-004923
 - 8.1 ly
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