Temperature
6176 K
6157.4 to 6308.4
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Stellar HostProfile
HD 205739
Unclassified star • 92.51 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
HIP: HIP 106824HD: HD 205739TIC: TIC 270501383
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: Lopez-Morales et al. 2008 • System source: TICv8
Mass
1.22 Msun
1.22 to 1.24
Radius
1.33 Rsun
1.33 to 1.44
Age
2.84 Gyr
single adopted value
Luminosity
0.36 log(Lsun)
0.36 to 0.43
Distance
92.51 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.33 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 205739
1.33 R☉
System Layout
Known planets
1 planets linked to this host
HD 205739 b
Radial Velocity
◌
Discovery
2008
Period
279.8 days
Radius
—
Mass
435.4 M⊕
Eq. Temp
—
HD 205739 and Its Planet
HD 205739 is a main-sequence F7 V star 302 light-years away. It is 2.84 billion years old, with a mass of 1.22 solar masses, a radius of 1.33 solar radii, and a temperature of 6180 K. Its reported mass and radius estimates are larger than the Sun's, and its reported temperature is hotter than the Sun's. One planet orbits this host.
HD 205739 b was discovered in 2008 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. The planet has a minimum mass of 435 Earth masses, larger than Earth's and roughly 1.37 times Jupiter's mass. Its orbital period is 280 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 92.51 | Nordstrom et al. 2004 | TICv8 |
| 6308.4 | 1.24 | 1.37 | — | 0.43 | — | 92.51 | TICv8 | TICv8 |
| 6301 | 1.24 | — | — | — | — | 92.51 | Santos et al. 2013 | TICv8 |
| 6176 | 1.22 | 1.33 | 2.84 | 0.36 | — | 92.51 | Lopez-Morales et al. 2008 | TICv8 |
| — | — | — | — | — | F8 | 92.51 | Cannon & Pickering 1918 | TICv8 |
| 6157.4 | — | 1.44 | — | 0.43 | — | 92.51 | Gaia DR2 | TICv8 |
| — | — | — | — | — | F7 V | 92.51 | Michigan Catalog, Vol. 3 | TICv8 |