Temperature
5070 K
5070 to 5132
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Stellar HostProfile
HD 207897
K0 V • 28.29 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
HIP: HIP 107038TIC: TIC 264678534HD: HD 207897
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: Heidari et al. 2022 • System source: TICv8
Mass
0.80 Msun
0.77 to 0.85
Radius
0.78 Rsun
0.76 to 0.78
Age
7.10 Gyr
4.70 to 7.10
Luminosity
-0.44 log(Lsun)
-0.44 to -0.42
Distance
28.29 pc
single adopted value
Spectral Type
K0 V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.78 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 207897
0.78 R☉
System Layout
Known planets
1 planets linked to this host
HD 207897 b
Transit
◌
Discovery
2021
Period
16.20 days
Radius
2.34 R⊕
Mass
14.80 M⊕
Eq. Temp
581.8 K
HD 207897 b: A Super-Earth in a Nearby K-Dwarf System
HD 207897 is a K0 V star 92.3 light-years away. This host star has one known planet. The star is 7.1 billion years old, with a mass of 0.8 solar masses, a radius of 0.779 solar radii, and a temperature of 5070 K. Its mass and radius are smaller than the Sun's, and its temperature is cooler than the Sun's.
The sole planet, HD 207897 b, is a Super-Earth discovered by transit in 2021. It orbits every 16.2 days. Its mass is 14.8 Earth masses and its radius is 2.34 Earth radii, both larger than Earth's. Its mean density is 6.34 g/cm³, 1.15 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
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 |
|---|---|---|---|---|---|---|---|---|
| 5106 | 0.82 | 0.78 | 4.70 | -0.42 | — | 28.29 | MacDougall et al. 2023 | TICv8 |
| — | — | — | — | — | K0 | 28.29 | Cannon & Pickering 1918 | TICv8 |
| 5071 | — | 0.78 | — | — | — | 28.29 | ExoFOP | TICv8 |
| 5071 | 0.85 | 0.78 | — | -0.44 | — | 28.29 | TICv8 | TICv8 |
| 5070 | 0.80 | 0.78 | 7.10 | -0.44 | K0 V | 28.29 | Heidari et al. 2022 | TICv8 |
| — | — | — | — | — | — | 28.29 | Wright et al. 2004 | TICv8 |
| 5132 | 0.77 | 0.76 | — | -0.44 | K0 | 28.29 | Turnbull 2015 | TICv8 |