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HD 18143
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Star HD 18143

Triple star system HD 18143 is located 73 light years away from the Sun. It is a system with 3 stars. There are multiple known exoplanets in this system.
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Sun distance
73 light years
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HD 18143 A

Orange star, High proper motion star
Spectral class: K0V

Location +

Ascension iconRight ascension: 2h 55m 39.382s
Declination iconDeclination: 26° 52' 20.482'' (northern hemisphere)
Parallax iconParallax: 44.432
Distance iconSun distance: 73.405 ly | 22.5 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: 85 % M Sun
| 890 M Jupiter
+
Star mass
Mass of the star HD 18143 A is 0.85 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: 89 % R Sun
| 8.9 R Jupiter
+
Star size
Radius of the star HD 18143 A is 0.894 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: 5078 K | 0.88 T Sun
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Star temperature
Surface temperature of HD 18143 A is 5078 K, which is 88 % 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): 7.7
Magnitude iconAbsolute magnitude (V): 5.9
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 18143 B

Orange star, High proper motion star
Spectral class: K7.5Ve

Basic characteristic

icon weight
Mass: 70 % M Sun
| 733.3 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 18143 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
temperature iconTemperature: 3900 K
 (estimate)
+
Star temperature
Surface temperature of HD 18143 B is estimated to be 3934 K, which is 67 % 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): 10
Magnitude iconAbsolute magnitude (V): 8.3
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 18143 C

Red dwarf, High proper motion star
Spectral class: M4.0V

Basic characteristic

icon weight
Mass: 30 % M Sun
| 272.4 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 18143 C is unknown. Based on its other characteristics, it is estimated to be about 30 % 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: 30 % R Sun
| 2.9 R Jupiter
(estimate)
+
Star size
Radius of the star HD 18143 C is not known. Its estimated value based on other similar stars is about 30 % 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 iconTemperature: 3300 K
 (estimate)
+
Star temperature
Surface temperature of HD 18143 C is estimated to be 3300 K, which is 57 % 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

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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HD 18143 system structure

 HD 18143 A
HD 18143 A b 0.09 AU 10.8 M⊕ 10.3 days
HD 18143 A c 17.53 AU 3178.4 M⊕ 28982.4 days
HD 18143 B
HD 18143 C

More about HD 18143

       HD 18143 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
GJ 9105, LDS 883, STF 326, Gliese 9105, Gaia EDR3 116037204451525376
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External sources
simbad icon
Simbad database (HD 18143C)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 116037376250217984)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HD 18143 system from the Sun?

The HD 18143 system is 73 light years or 22.5 parsecs from the Sun.

What galaxy is the HD 18143 star in?

The HD 18143 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 18143 system?

The HD 18143 system contains 3 stars.

What type of star is the HD 18143?

The primary in the HD 18143 system is a Orange star star.

What temperature is star HD 18143?

The primary in the HD 18143 system has a temperature of 5078 K. Find out more about the temperature of stars in Stellar guide
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