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Stellar Catalog
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HD 22879
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Star HD 22879

Binary star HD 22879 is located 85 light years away from the Sun. It consists of a red dwarf and a bright giant. For now, there are no known exoplanets in this star system.
Sun distance
85 light years
galaxy map

HD 22879 A

Bright giant
Spectral class: G0VmF2

Location +

Ascension iconRight ascension: 3h 40m 22.807s
Declination iconDeclination: -3° 13' 4.539'' (equatorial region)
Parallax iconParallax: 38.325
Distance iconSun distance: 85.102 ly | 26.1 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: 80 % M Sun
| 838 M Jupiter
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Star mass
Mass of the star HD 22879 A is 0.8 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: 100 % R Sun
| 10 R Jupiter
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Star size
Radius of the star HD 22879 A is 1 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: 5926 K | 1.03 T Sun
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Star temperature
Surface temperature of HD 22879 A is 5926 K, which is 103 % 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: 10 billions years | 2.17 Sun
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Star age
Star HD 22879 A is 10 billion years old, which is about 2.17 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): 6.7
Magnitude iconAbsolute magnitude (V): 4.6
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

HD 22879 B

Red dwarf, High proper motion star

Basic characteristic

icon weight
Mass: 10 % M Sun
| 146.7 M Jupiter
 (estimate)
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Star mass
The mass of the star HD 22879 B is unknown. Based on its other characteristics, it is estimated to be about 10 % of the Sun’s mass.

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: 20 % R Sun
| 1.6 R Jupiter
(estimate)
+
Star size
Radius of the star HD 22879 B is not known. Its estimated value based on other similar stars is about 20 % 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

Photometry

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

HD 22879 system structure

 HD 22879 A
HD 22879 B
More about HD 22879
       HD 22879 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is also observable from Northern America, Europe and Asia.
Other designations of this star
Gaia DR3 3250489115709122560
External sources
icon study
Tracing the Galactic Origins of Selected Four G-type Stars in the Solar Neighbourhood
Scientific study, Accepted: 24. 04. 2025
simbad icon
Simbad database (HD 22879B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia DR3 3250489115708824192)
Archive from the Gaia mission
Closest stars

 LP 593-13
 - 2.5 ly

G 77-64
 - 3.5 ly

2MASS J03282609-0537361
 - 8.7 ly

2MASS J03303511-0025346
 - 9.1 ly

HD 20619
 - 10 ly
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