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Stellar Catalog
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HD 108421
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Star HD 108421

Binary star HD 108421 is located 89 light years away from the Sun. It consists of 2 orange star stars. For now, there are no known exoplanets in this star system.
Sun distance
89 light years
galaxy map

HD 108421 A

Orange star
Spectral class: K2V

Location +

Ascension iconRight ascension: 12h 27m 13.831s
Declination iconDeclination: 27° 1' 24.876'' (northern hemisphere)
Parallax iconParallax: 36.504
Distance iconSun distance: 89.348 ly | 27.4 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: 80 % M Sun
| 859 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 108421 A is unknown. Based on its other characteristics, it is estimated to be about 80 % 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: 80 % R Sun
| 7.9 R Jupiter
(estimate)
+
Star size
Radius of the star HD 108421 A is not known. Its estimated value based on other similar stars is about 80 % 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

Magnitude iconApparent magnitude (V): 8.3
Magnitude iconAbsolute magnitude (V): 6.1
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

HD 108421 B

Orange star, High proper motion star
Spectral class: K4V

Basic characteristic

icon weight
Mass: 70 % M Sun
| 775.2 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 108421 B is unknown. Based on its other characteristics, it is estimated to be about 70 % 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: 70 % R Sun
| 7.1 R Jupiter
(estimate)
+
Star size
Radius of the star HD 108421 B is not known. Its estimated value based on other similar stars is about 70 % 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

Magnitude iconApparent magnitude (V): 9.5
Magnitude iconAbsolute magnitude (V): 7.3
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 108421 system structure

 HD 108421 A
HD 108421 B
More about HD 108421
       HD 108421 can be found in northern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
Gaia DR3 4008897567571892480
External sources
simbad icon
Simbad database (HD 108421B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia DR3 4008897773729524224)
Archive from the Gaia mission
Closest stars

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 - 2.7 ly

Wolf 409
 - 3.7 ly

TIC 141274365
 - 5 ly

G 59-7
 - 5.9 ly

LP 320-359
 - 6.2 ly
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