Temperature
5212 K
5119 to 5217
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Stellar HostProfile
HD 97658
K1 V • 21.56 pc
Records
21
literature rows
Planets
1
system count
References
22
distinct source labels
HD: HD 97658HIP: HIP 54906TIC: TIC 82308728
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: Ellis et al. 2021 • System source: TICv8
Mass
0.85 Msun
0.74 to 0.89
Radius
0.73 Rsun
0.68 to 0.86
Age
3.90 Gyr
0.64 to 6
Luminosity
-0.45 log(Lsun)
-0.45 to 0.30
Distance
21.56 pc
single adopted value
Spectral Type
K1 V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.73 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 97658
0.73 R☉
System Layout
Known planets
1 planets linked to this host
HD 97658 b
Radial Velocity
◌
Discovery
2010
Period
9.49 days
Radius
2.12 R⊕
Mass
8.30 M⊕
Eq. Temp
751 K
HD 97658 and Its Super-Earth
HD 97658 is a K1 V star 70.3 light-years away, with one known planet. The V in its spectral type marks it as a main-sequence dwarf, and at 0.85 solar masses, 0.728 solar radii, and 5210 K, it is less massive, smaller, and cooler than the Sun. It is 3.9 billion years old.
The planet, HD 97658 b, was found in 2010 by the radial velocity method, which detects the wobble a planet's gravity induces in its star. It is a Super-Earth, a class that reaches 2.5 times Earth's radius, and its radius of 2.12 Earth radii is larger than Earth's. It completes an orbit every 9.49 days, and its mass of 8.3 Earth masses is also larger than Earth's. Its mean density is 4.8 g/cm³, 0.871 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
21
Stellar refs
21
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 |
|---|---|---|---|---|---|---|---|---|
| 5192 | 0.77 | 0.75 | — | -0.36 | — | 21.56 | Guo et al. 2020 | TICv8 |
| 5120 | — | 0.77 | — | — | — | 21.56 | ExoFOP | TICv8 |
| 5119 | 0.75 | 0.70 | — | — | — | 21.56 | Dragomir et al. 2013 | TICv8 |
| — | — | — | — | — | K1 V | 21.56 | Gray et al. 2003 | TICv8 |
| 5212 | 0.85 | 0.73 | 3.90 | -0.45 | K1 V | 21.56 | Ellis et al. 2021 | TICv8 |
| 5137 | 0.75 | 0.86 | — | — | — | 21.56 | Mortier et al. 2013 | TICv8 |
| — | — | — | — | — | — | 21.56 | Valenti & Fischer 2005 | TICv8 |
| — | — | — | — | — | — | 21.56 | Nidever et al. 2002 | TICv8 |
| 5175 | 0.89 | 0.74 | — | — | — | 21.56 | Stassun et al. 2017 | TICv8 |
| 5194.0 | 0.77 | 0.75 | — | — | — | 21.56 | Rosenthal et al. 2021 | TICv8 |
| 5148 | 0.80 | 0.76 | 0.64 | -0.44 | K1V | 21.56 | Turnbull 2015 | TICv8 |
| 5137 | 0.74 | — | — | — | — | 21.56 | Maxted et al. 2022 | TICv8 |
| 5192.3 | — | 0.75 | — | -0.44 | — | 21.56 | Gaia DR2 | TICv8 |
| 5170 | 0.78 | 0.68 | — | 0.30 | — | 21.56 | Howard et al. 2011 | TICv8 |
| — | 0.80 | 0.76 | 0.64 | — | — | 21.56 | Takeda et al. 2007 | TICv8 |
| 5120 | 0.86 | 0.77 | — | -0.43 | — | 21.56 | TICv8 | TICv8 |
| 5170 | 0.77 | 0.74 | 6 | -0.45 | K1 | 21.56 | Van Grootel et al. 2014 | TICv8 |
| 5170 | — | — | — | — | — | 21.56 | Knutson et al. 2014 | TICv8 |
| — | — | — | — | — | — | 21.56 | Wright et al. 2004 | TICv8 |
| — | — | — | — | — | K0 | 21.56 | Cannon & Pickering 1918 | TICv8 |
| 5217 | — | — | — | — | — | 21.56 | Maldonado et al. 2015 | TICv8 |