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HD 168112
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Star HD 168112

Binary star HD 168112 is located 6543 light years away from the Sun. It consists of a subgiant and a blue star. For now, there are no known exoplanets in this star system.
Sun distance
6543 light years
galaxy map

HD 168112 A

Subgiant
Spectral class: O4.5IV

Location +

Ascension iconRight ascension: 18h 18m 40.874s
Declination iconDeclination: -12° 6' 23.404'' (equatorial region)
Parallax iconParallax: 0.498
Distance iconSun distance: 6,543.123 ly | 2,006.1 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: 2930 % M Sun
| 30662.4 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 168112 A is unknown. Based on its other characteristics, it is estimated to be about 2930 % 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: 3500 % R Sun
| 348.3 R Jupiter
(estimate)
+
Star size
Radius of the star HD 168112 A is not known. Its estimated value based on other similar stars is about 3500 % 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: 35000 K
 (estimate)
+
Star temperature
Surface temperature of HD 168112 A is estimated to be 35000 K, which is 606 % 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 168112 B

Blue star
Spectral class: O5.5 V(n)((f))

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 168112 system structure

 HD 168112 A
HD 168112 B

More about HD 168112

       HD 168112 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
Gaia DR3 4153666106124493696
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External sources
icon study
X-raying the wind-wind collisions in HD 168112 and HD 167971
Scientific study, Accepted: 18. 10. 2024

news icon
News from this star system

Observations of the massive star systems HD 168112 and HD 167971 reveal emissions from wind collisions
Image: Observations of the massive star systems HD 168112 and HD 167971 reveal emissions from wind collisions
...
23.10.2024
Read article >

Frequently Asked Questions stardetail

How far is the HD 168112 system from the Sun?

The HD 168112 system is 6543 light years or 2,006.1 parsecs from the Sun.

What galaxy is the HD 168112 star in?

The HD 168112 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 168112 system?

The HD 168112 system contains 2 stars.

What type of star is the HD 168112?

The primary in the HD 168112 system is a Subgiant star.

What temperature is the HD 168112?

The primary in the HD 168112 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
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