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HD 156668
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Star HD 156668

Orange star HD 156668 is located 79 light years away from the Sun. It is a single star of spectral class K3V C, that has 77 % of solar mass. There are multiple known exoplanets in this system.
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Sun distance
79 light years
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HD 156668

Orange star
Spectral class: K3V C

Location +

Ascension iconRight ascension: 17h 17m 40.407s
Declination iconDeclination: 29° 13' 41.488'' (northern hemisphere)
Parallax iconParallax: 41.110
Distance iconSun distance: 79.337 ly | 24.3 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: 77.2 % M Sun
| 809 M Jupiter
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Star mass
Mass of the star HD 156668 is 0.772 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: 72 % R Sun
| 7.2 R Jupiter
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Star size
Radius of the star HD 156668 is 0.720 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: 4850 K | 0.84 T Sun
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Star temperature
Surface temperature of HD 156668 is 4850 K, which is 84 % 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: 8.6 billions years | 1.87 Sun
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Star age
Star HD 156668 is 8.6 billion years old, which is about 1.87 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
luminosity icon
Luminosity: 0.230 L Sun
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Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity 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
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HD 156668 system structure

 HD 156668
HD 156668 b 0.02 AU 3.1 M⊕ -
HD 156668 c 1.57 AU 31.5 M⊕ -

More about HD 156668

Nearby star HD 156668 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 70 % of the size of Sun and temperature on its surface is around 4850 K (4577 °C), which is about 84 % of Sun's temperature.
       HD 156668 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
G 181-34, BD+29 2979, HIC 84607, HIP 84607, LSPM J1717+2913, LTT 15121, NLTT 44537, 2MASS J17174049+2913378, TIC 257715493, TYC 2073-136-1, WISEA J171740.44+291340.2, Gaia EDR3 4575374857376398976
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External sources
gaia icon
Gaia database (Gaia EDR3 4575374857376398976)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HD 156668 system from the Sun?

The HD 156668 system is 79 light years or 24.3 parsecs from the Sun.

What galaxy is the HD 156668 star in?

The HD 156668 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 156668 system?

The HD 156668 is a single star, there are no other known stars in the system.

What type of star is the HD 156668?

The star HD 156668 is a Orange star star.

What temperature is star HD 156668?

The star HD 156668 has an effective temperature of 4850 K. Find out more about the temperature of stars in Stellar guide
Closest stars

 BD+29 3029
 - 3.9 ly

G 182-4
 - 3.9 ly

CTI 170958.5+275905
 - 4.1 ly

StM 336
 - 4.1 ly

PM J17198+2833
 - 5.9 ly
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Stellar Catalog brings the stars from our galaxy to you. Discover their position, physical properties and whether there are any exoplanets or disks orbiting them. The data in Stellar Catalog come from respectable sources like Gaia space telescope, or SIMBAD database.
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