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HD 221356
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Star HD 221356

Triple star system HD 221356 is located 84 light years away from the Sun. It is a system with 3 stars. For now, there are no known exoplanets in this star system.
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Sun distance
84 light years
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HD 221356 A

Yellow-White star, High proper motion star
Spectral class: F7V

Location +

Ascension iconRight ascension: 23h 31m 31.698s
Declination iconDeclination: -4° 5' 17.720'' (equatorial region)
Parallax iconParallax: 38.711
Distance iconSun distance: 84.253 ly | 25.8 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: 112 % M Sun
| 1173 M Jupiter
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Star mass
Mass of the star HD 221356 A is 1.12 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: 104 % R Sun
| 10.3 R Jupiter
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Star size
Radius of the star HD 221356 A is 1.04 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: 6300 K
 (estimate)
+
Star temperature
Surface temperature of HD 221356 A is estimated to be 6280 K, which is 109 % 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): 6.5
Magnitude iconAbsolute magnitude (V): 4.4
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 221356 B

Red dwarf
Spectral class: M8.0V

Basic characteristic

icon weight
Mass: 9 % M Sun
| 94.3 M Jupiter
 (estimate)
+
Star mass
The estimated mass of the star HD 221356 B is about 9 % of the Sun's mass, or approximately 94.3 Jupiter 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: 10 % R Sun
| 1 R Jupiter
(estimate)
+
Star size
Radius of the star HD 221356 B is not known. Its estimated value based on other similar stars is about 10 % 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: 2600 K
 (estimate)
+
Star temperature
Surface temperature of HD 221356 B is estimated to be 2600 K, which is 45 % 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

HD 221356 C

Brown dwarf
Spectral class: L3.0V

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 221356 system structure

Stars B and C form a pair, which orbits the primary star A.
 HD 221356 A
HD 221356 B
HD 221356 C

More about HD 221356

       HD 221356 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
2MASSW J2331016-040618, LTT 9578, HD 221356, NLTT 57119, SPOCS 1021, BD -04 5896, HIC 116106, PLX 5692, UBV 20217, GC 32708, HIP 116106, PPM 207648, UBV M 27064, GCRV 14748, HR 8931, ROT 3416, uvby98 100221356, Konigstuhl 3A, SAO 146752, YZ 94 8077, GJ 9829, Gliese 9829, 2MASS J23313149-0405143, Gaia DR3 2633449134434620288
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External sources
gaia icon
Gaia database (Gaia DR3 2633449095780158720)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HD 221356 system from the Sun?

The HD 221356 system is 84 light years or 25.8 parsecs from the Sun.

What galaxy is the HD 221356 star in?

The HD 221356 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 221356 system?

The HD 221356 system contains 3 stars.

What type of star is the HD 221356?

The primary in the HD 221356 system is a Yellow-White star star.

What temperature is the HD 221356?

The primary in the HD 221356 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
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