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HD 180161
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Star HD 180161

Orange star HD 180161 is located 66 light years away from the Sun. It is a single star of spectral class K0, that has typically about 70 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
66 light years
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HD 180161

Orange star, BY Draconis variable
Spectral class: K0

Location +

Ascension iconRight ascension: 19h 12m 11.790s
Declination iconDeclination: 57° 40' 25.649'' (northern hemisphere)
Parallax iconParallax: 49.468
Distance iconSun distance: 65.933 ly | 20.2 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: 90 % M Sun
| 900.9 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 180161 is unknown. Based on its other characteristics, it is estimated to be about 90 % 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: 90 % R Sun
| 8.6 R Jupiter
(estimate)
+
Star size
Radius of the star HD 180161 is not known. Its estimated value based on other similar stars is about 90 % 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: 5300 K
 (estimate)
+
Star temperature
Surface temperature of HD 180161 is estimated to be 5259 K, which is 92 % 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 iconAbsolute magnitude (V): -1.5
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
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HD 180161 system structure

 HD 180161

More about HD 180161

      a BY Draconis variable. Stars from this category exhibit periodic variations in their luminosity. The variability is caused by a rotation which shows and hides starspots on the surface. HD 180161 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. 

      HD 180161 is a BY Draconis variable. Stars from this category exhibit periodic variations in their luminosity. The variability is caused by a rotation which shows and hides starspots on the surface.
Other designations of this star
Gaia EDR3 2143016302194287488
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External sources
simbad icon
Simbad database (HD 180161)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 2143016302194287488)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HD 180161 system from the Sun?

The HD 180161 system is 66 light years or 20.2 parsecs from the Sun.

What galaxy is the HD 180161 star in?

The HD 180161 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 180161 system?

The HD 180161 is a single star, there are no other known stars in the system.

What type of star is the HD 180161?

The star HD 180161 is a Orange star star.

What temperature is the HD 180161?

The primary in the HD 180161 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
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