Temperature
5080 K
5069 to 5181.1
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Stellar HostProfile
HD 192310
K3V • 8.80 pc
Records
16
literature rows
Planets
2
system count
References
17
distinct source labels
HIP: HIP 99825TIC: TIC 326096771HD: HD 192310
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: Turnbull 2015 • System source: TICv8
Mass
0.82 Msun
0.72 to 0.85
Radius
0.81 Rsun
0.73 to 0.86
Age
9.30 Gyr
7.81 to 9.30
Luminosity
-0.38 log(Lsun)
-0.41 to 0.34
Distance
8.80 pc
single adopted value
Spectral Type
K3V
Multiple classifications reported
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.81 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 192310
0.81 R☉
System Layout
Known planets
2 planets linked to this host
HD 192310 b
Radial Velocity
◌
Discovery
2011
Period
74.72 days
Radius
—
Mass
16.90 M⊕
Eq. Temp
355 K
HD 192310 c
Radial Velocity
◌
Discovery
2011
Period
525.8 days
Radius
—
Mass
24 M⊕
Eq. Temp
185 K
HD 192310 and Its Two Known Planets
HD 192310 is a K3V star located 28.7 light-years away. Its reported mass is 0.82 solar masses and its reported radius is 0.81 solar radii, both smaller than the Sun's. The star's reported temperature is 5080 K, cooler than the Sun's, and its age is 9.3 billion years. Two planets are known to orbit this host.
Both planets were discovered in 2011 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. HD 192310 b has a reported mass of 16.9 Earth masses and an orbital period of 74.7 days, larger than Earth's mass. HD 192310 c has a reported mass of 24 Earth masses and an orbital period of 526 days, also larger than Earth's mass. Among the listed planets, HD 192310 b has the shortest year by reported estimates, at 74.7 days, while HD 192310 c has the longest, at 526 days. The star's age is 9.3 billion years.
Provenance
Underlying measurements and references
Evidence Summary
Rows
16
Stellar refs
16
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 8.80 | Valenti & Fischer 2005 | TICv8 |
| 5132 | — | — | — | — | — | 8.80 | Maldonado et al. 2015 | TICv8 |
| — | — | — | — | — | — | 8.80 | Nordstrom et al. 2004 | TICv8 |
| 5087 | — | — | — | — | — | 8.80 | Harada et al. 2025 | TICv8 |
| — | 0.82 | 0.81 | 9 | — | — | 8.80 | Takeda et al. 2007 | TICv8 |
| — | — | — | — | — | K0 | 8.80 | Cannon & Pickering 1918 | TICv8 |
| 5071 | 0.85 | 0.82 | — | -0.39 | — | 8.80 | TICv8 | TICv8 |
| 5069 | 0.72 | — | — | — | — | 8.80 | Santos et al. 2004 | TICv8 |
| 5144 | 0.85 | 0.73 | — | 0.34 | — | 8.80 | Howard et al. 2011 | TICv8 |
| 5080 | 0.82 | 0.81 | 9.30 | -0.38 | K3V | 8.80 | Turnbull 2015 | TICv8 |
| — | — | — | — | — | K2+ V | 8.80 | Gray et al. 2006 | TICv8 |
| 5181.1 | 0.84 | 0.86 | — | — | — | 8.80 | Rosenthal et al. 2021 | TICv8 |
| 5090.5 | — | 0.82 | — | -0.39 | — | 8.80 | Gaia DR2 | TICv8 |
| 5166 | 0.80 | — | 7.81 | -0.41 | — | 8.80 | Pepe et al. 2011 | TICv8 |
| 5166 | 0.80 | — | — | -0.41 | — | 8.80 | Sousa et al. 2008 | TICv8 |
| — | — | — | — | — | K3 V | 8.80 | Michigan Catalog, Vol. 3 | TICv8 |