Temperature
5620 K
5620 to 5798.7
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Stellar HostProfile
HD 81040
Unclassified star • 34.43 pc
Records
10
literature rows
Planets
1
system count
References
11
distinct source labels
TIC: TIC 414965996HD: HD 81040HIP: HIP 46076
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: Ghezzi et al. 2010 • System source: TICv8
Mass
0.90 Msun
0.90 to 1.05
Radius
0.93 Rsun
0.86 to 0.93
Age
8 Gyr
0.73 to 8
Luminosity
-0.11 log(Lsun)
-0.11 to -0.08
Distance
34.43 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.93 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 81040
0.93 R☉
System Layout
Known planets
1 planets linked to this host
HD 81040 b
Radial Velocity
◌
Discovery
2005
Period
1002.7 days
Radius
—
Mass
2301.1 M⊕
Eq. Temp
—
HD 81040 and Its Planet
HD 81040 is a G0 star 112 light-years away, with a single planet known to orbit it. The star is 8 billion years old and holds 0.9 solar masses within a radius of 0.93 solar radii. Its temperature of 5620 K is cooler than the Sun's.
The one planet, HD 81040 b, was found in 2005 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. The planet's mass estimate is 2300 Earth masses, roughly 7.24 times Jupiter's mass and larger than Earth's. It completes an orbit in 1000 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
10
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 |
|---|---|---|---|---|---|---|---|---|
| 5798.7 | — | 0.91 | — | -0.08 | — | 34.43 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 34.43 | Nordstrom et al. 2004 | TICv8 |
| 5768.9 | 1.03 | 0.92 | — | -0.08 | — | 34.43 | TICv8 | TICv8 |
| — | 1.03 | — | — | — | — | 34.43 | Feng et al. 2022 | TICv8 |
| — | — | — | — | — | G0 | 34.43 | Cannon & Pickering 1918 | TICv8 |
| 5620 | 0.90 | 0.93 | 8 | -0.11 | — | 34.43 | Ghezzi et al. 2010 | TICv8 |
| — | 0.96 | — | — | — | — | 34.43 | Winn 2022 | TICv8 |
| 5755 | 1.05 | 0.91 | — | — | — | 34.43 | Stassun et al. 2017 | TICv8 |
| — | 0.99 | — | 1.79 | -0.08 | G2/G3 | 34.43 | Li et al. 2021 | TICv8 |
| 5700 | 0.96 | 0.86 | 0.73 | — | G2/G3 | 34.43 | Sozzetti et al. 2006 | TICv8 |