Temperature
4840 K
4788 to 4970
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Stellar HostProfile
kap CrB
K0 III-IV • 30.07 pc
Records
12
literature rows
Planets
1
system count
References
13
distinct source labels
HIP: HIP 77655HD: HD 142091TIC: TIC 334753043
Approximate color
from effective temperature
Canonical Summary
Adopted host values from one source row
Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.
Stellar source: Teng et al. 2023 • System source: TICv8
Mass
1.33 Msun
1.33 to 1.84
Radius
4.68 Rsun
4.68 to 5.08
Luminosity
1.04 log(Lsun)
1.04 to 1.11
Distance
30.07 pc
single adopted value
Spectral Type
K0 III-IV
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 4.68 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
kap CrB
4.68 R☉
System Layout
Known planets
1 planets linked to this host
kap CrB b
Radial Velocity
◌
Discovery
2007
Period
1253.7 days
Radius
—
Mass
483.7 M⊕
Eq. Temp
—
kap CrB and Its Planet
kap CrB is a K-type star 98.1 light-years away. Its spectral type places it between a giant and a subgiant. One planet orbits this host.
The star has a mass of 1.33 solar masses and a radius of 4.68 solar radii, both larger than the Sun's. Its temperature is 4840 K, cooler than the Sun's.
The planet kap CrB b was found in 2007 using the radial velocity method, which tracks the wobble a planet's gravity induces in its star. Its minimum mass is a lower bound on its true mass, here 484 Earth masses, roughly 1.52 times Jupiter's mass and larger than Earth's. Its orbital period is 1250 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
12
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | K0 | 30.07 | Cannon & Pickering 1918 | TICv8 |
| 4871 | — | 4.84 | — | — | — | 30.07 | TICv8 | TICv8 |
| 4840 | 1.33 | 4.68 | — | 1.04 | K0 III-IV | 30.07 | Teng et al. 2023 | TICv8 |
| 4788 | 1.47 | 5.06 | 3.42 | 1.08 | — | 30.07 | Baines et al. 2013 | TICv8 |
| 4835.2 | — | 5.08 | — | 1.10 | — | 30.07 | Gaia DR2 | TICv8 |
| — | — | — | — | — | K0 III-IV | 30.07 | Gray et al. 2003 | TICv8 |
| 4889 | 1.45 | 4.79 | 3.29 | — | — | 30.07 | Sousa et al. 2015 | TICv8 |
| 4877 | 1.51 | 5 | — | 1.11 | — | 30.07 | Sato et al. 2012 | TICv8 |
| 4876 | 1.58 | — | — | — | — | 30.07 | Mortier et al. 2013 | TICv8 |
| 4871 | 1.50 | 4.85 | — | — | — | 30.07 | Luhn et al. 2019 | TICv8 |
| 4970 | 1.80 | 4.71 | 2.50 | — | — | 30.07 | Johnson et al. 2008 | TICv8 |
| — | 1.84 | — | — | — | — | 30.07 | Bowler et al. 2010 | TICv8 |