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HD 331161
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Star HD 331161

Binary star HD 331161 is located 45 light years away from the Sun. It consists of 2 red dwarf stars. For now, there are no known exoplanets in this star system.
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Sun distance
45 light years
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HD 331161 A

Red dwarf, High proper motion star
Spectral class: M0.5V

Location +

Ascension iconRight ascension: 19h 46m 24.516s
Declination iconDeclination: 32° 0' 55.157'' (northern hemisphere)
Parallax iconParallax: 71.715
Distance iconSun distance: 45.479 ly | 13.9 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: 60 % M Sun
| 576.2 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 331161 A is unknown. Based on its other characteristics, it is estimated to be about 60 % 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: 60 % R Sun
| 5.6 R Jupiter
(estimate)
+
Star size
Radius of the star HD 331161 A is not known. Its estimated value based on other similar stars is about 60 % 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: 3893 K | 0.67 T Sun
+
Star temperature
Surface temperature of HD 331161 A is 3893 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): 10.2
Magnitude iconAbsolute magnitude (V): 9.5
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 331161 B

Red dwarf, High proper motion star
Spectral class: M2.5V

Basic characteristic

icon weight
Mass: 40 % M Sun
| 429.5 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 331161 B is unknown. Based on its other characteristics, it is estimated to be about 40 % 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: 40 % R Sun
| 4.3 R Jupiter
(estimate)
+
Star size
Radius of the star HD 331161 B is not known. Its estimated value based on other similar stars is about 40 % 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: 3500 K
 (estimate)
+
Star temperature
Surface temperature of HD 331161 B is estimated to be 3542 K, which is 61 % 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): 11
Magnitude iconAbsolute magnitude (V): 10.3
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
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HD 331161 system structure

 HD 331161 A
HD 331161 B

More about HD 331161

       HD 331161 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
PM J19464+3200, G 125-31, BD+31 3767, HIC 97292, HIP 97292, L 1501-58, WDS J19464+3201AB, GJ 767, Gliese 767, Gaia EDR3 2034581091118259328
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External sources
simbad icon
Simbad database (HD 331161B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 2034581091125010048)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HD 331161 system from the Sun?

The HD 331161 system is 45 light years or 13.9 parsecs from the Sun.

What galaxy is the HD 331161 star in?

The HD 331161 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 331161 system?

The HD 331161 system contains 2 stars.

What type of star is the HD 331161?

The primary in the HD 331161 system is a Red dwarf star.

What temperature is star HD 331161?

The primary in the HD 331161 system has a temperature of 3893 K. Find out more about the temperature of stars in Stellar guide
Closest stars

 G 125-30
 - 0.7 ly

G 125-34
 - 3.5 ly

RX J1935+3746
 - 5.3 ly

Gaia EDR3 2021981409373336448
 - 5.4 ly

Gliese 758
 0.97 M☉ 6.8 ly
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