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Kappa Coronae Borealis
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Star Kappa Coronae Borealis

Subgiant Kappa Coronae Borealis is located 98 light years away from the Sun. It is a single star of spectral class K1IVa B, that has 132 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
98 light years
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Kappa Coronae Borealis

Subgiant
Spectral class: K1IVa B

Location +

Ascension iconRight ascension: 15h 51m 13.934s
Declination iconDeclination: 35° 39' 26.565'' (northern hemisphere)
Parallax iconParallax: 33.233
Distance iconSun distance: 98.143 ly | 30.1 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: 132 % M Sun
| 1383 M Jupiter
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Star mass
Mass of the star Kappa Coronae Borealis is 1.32 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: 477 % R Sun
| 47.5 R Jupiter
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Star size
Radius of the star Kappa Coronae Borealis is 4.77 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: 4870 K | 0.84 T Sun
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Star temperature
Surface temperature of Kappa Coronae Borealis is 4870 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
luminosity icon
Luminosity: 11.6 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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Kappa Coronae Borealis system structure

 Kappa Coronae Borealis
Kappa Coronae Borealis b 2.65 AU 575.7 M⊕ 1285 days

More about Kappa Coronae Borealis

Nearby star Kappa Coronae Borealis is is approximately 5 times bigger than the Sun and temperature on its surface is around 4870 K (4597 °C), which is about 84 % of Sun's temperature.
       Kappa Coronae Borealis can be found in northern celestial hemisphere.
Other designations of this star
κ CrB, 11 CrB, kap CrB, HD 142091, HIC 77655, HIP 77655, HR 5901, SAO 64948, LTT 14702, FK5 1414, 2MASS J15511394+3539264, NLTT 41359, TIC 334753043, TYC 2578-1609-1, WISE J155113.91+353925.2
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Frequently Asked Questions

How far is the Kappa Coronae Borealis system from the Sun?

The Kappa Coronae Borealis system is 98 light years or 30.1 parsecs from the Sun.

What galaxy is the Kappa Coronae Borealis star in?

The Kappa Coronae Borealis is in the Milky Way galaxy just like the Sun.

How many stars are in the Kappa Coronae Borealis system?

The Kappa Coronae Borealis is a single star, there are no other known stars in the system.

What type of star is the Kappa Coronae Borealis?

The star Kappa Coronae Borealis is a Subgiant star.

What temperature is star Kappa Coronae Borealis?

The star Kappa Coronae Borealis has an effective temperature of 4870 K. Find out more about the temperature of stars in Stellar guide
Class of stars Subgiant
A subgiant is a term used to describe a luminous star that is typically running out of hydrogen for nuclear fusion and is thus departing from the main sequence. These stars are classified as Yerkes luminosity class IV.
Possible companions

 * kap CrB
 - 0 ly
Closest stars

 LP 274-11
 - 2.2 ly

LP 274-10
 - 2.3 ly

G 179-47
 - 3.2 ly

GD 187
 - 5.9 ly

G 180-11
 - 7.7 ly
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exoplanet iconAbout Stellar Catalog

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Working with real data
icon Data in Stellar Catalog come from trusted scientific sources. Primary source is Gaia space telescope mapping the stars in Milky Way. Other sources include research papers, Simbad catalog and Exoplanet.eu database.
Estimated values
icon Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.
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