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HD 165155
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Star HD 165155

Yellow star HD 165155 is located 207 light years away from the Sun. It is a single star of spectral class G8V, that has 102 % of solar mass. There is at least one exoplanet in this system.
Sun distance
207 light years
galaxy map

HD 165155

Yellow star
Spectral class: G8V

Location +

Ascension iconRight ascension: 18h 5m 57.454s
Declination iconDeclination: -29° 55' 2.114'' (southern hemisphere)
Parallax iconParallax: 15.784
Distance iconSun distance: 206.643 ly | 63.4 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: 102 % M Sun
| 1069 M Jupiter
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Star mass
Mass of the star HD 165155 is 1.02 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: 95 % R Sun
| 9.5 R Jupiter
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Star size
Radius of the star HD 165155 is 0.95 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: 5426 K | 0.94 T Sun
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Star temperature
Surface temperature of HD 165155 is 5426 K, which is 94 % 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
time icon
Age: 11 billions years | 2.39 Sun
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Star age
Star HD 165155 is 11 billion years old, which is about 2.39 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 9.4
Magnitude iconAbsolute magnitude (V): 5.4
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 165155 system structure

 HD 165155
HD 165155 b 1.13 AU (HZ) 918.8 M⊕ 434.5 days
More about HD 165155
Star HD 165155 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 100 % of the size of Sun and temperature on its surface is around 5426 K (5153 °C), which is about 94 % of Sun's temperature.
       HD 165155 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 4050284898932499072
External sources
icon study
The 10 pc Neighborhood of Habitable Zone Exoplanetary Systems: Threat Assessment from Stellar Encounters & Supernovae
Scientific study, Accepted: 29. 10. 2024
gaia icon
Gaia database (Gaia DR3 4050284898932499072)
Archive from the Gaia mission
Class of stars Yellow star
Stars of spectral type G are sometimes also called yellow dwarfs. The Sun is one of them. These stars have a yellow color and a temperature above 5,000°C

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