Temperature
5008 K
4864 to 5008
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Stellar HostProfile
BD+14 4559
K2 V • 49.35 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 230183006HIP: HIP 104780
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: Niedzielski et al. 2009 • System source: TICv8
Mass
0.86 Msun
0.49 to 0.86
Radius
0.95 Rsun
0.86 to 0.95
Luminosity
-0.32 log(Lsun)
-0.43 to -0.32
Distance
49.35 pc
single adopted value
Spectral Type
K2 V
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.95 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
BD+14 4559
0.95 R☉
System Layout
Known planets
1 planets linked to this host
BD+14 4559 b
Radial Velocity
◌
Discovery
2009
Period
268.9 days
Radius
—
Mass
330.5 M⊕
Eq. Temp
—
BD+14 4559 b: A Planet Orbiting a Cool Dwarf Star
BD+14 4559 is a K2 V star, a class of cooler, less massive stars than the Sun. It lies 161 light-years away and has a mass of 0.86 solar masses, a radius of 0.95 solar radii, and a temperature of 5010 K. Its temperature is cooler than the Sun's. One planet is known to orbit BD+14 4559.
That planet is BD+14 4559 b, discovered in 2009 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. The planet has an orbital period of 269 days, the time it takes to complete one orbit. Its minimum mass is 331 Earth masses, a lower bound on its true mass that is larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4869.2 | — | 0.86 | — | -0.42 | — | 49.35 | Gaia DR2 | TICv8 |
| 4864 | 0.79 | 0.86 | — | -0.43 | — | 49.35 | TICv8 | TICv8 |
| 5008 | 0.86 | 0.95 | — | -0.32 | K2 V | 49.35 | Niedzielski et al. 2009 | TICv8 |
| 4864 | 0.82 | — | — | — | — | 49.35 | Santos et al. 2013 | TICv8 |
| 4864 | 0.49 | 0.86 | — | — | — | 49.35 | Stassun et al. 2017 | TICv8 |