Temperature
5386 K
5331.3 to 5398.3
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Stellar HostProfile
HD 181234
G5 • 47.75 pc
Records
12
literature rows
Planets
1
system count
References
13
distinct source labels
HD: HD 181234HIP: HIP 95015TIC: TIC 3409107
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: Rickman et al. 2019 • System source: TICv8
Mass
1.01 Msun
0.94 to 1.01
Radius
1.05 Rsun
1.01 to 1.06
Age
6.32 Gyr
single adopted value
Distance
47.75 pc
single adopted value
Spectral Type
G5
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.05 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 181234
1.05 R☉
System Layout
Known planets
1 planets linked to this host
HD 181234 b
Radial Velocity
◌
Discovery
2019
Period
7593.4 days
Radius
—
Mass
2980.9 M⊕
Eq. Temp
—
HD 181234 and Its Planet
HD 181234 is a G-type star 156 light-years away. It is a Sun-like star with a spectral type of G5. Its measured age is 6.32 billion years, its mass is 1.01 solar masses, and its radius is 1.05 solar radii. Its temperature of 5390 K is cooler than the Sun's. One planet orbits this host.
HD 181234 b was discovered in 2019 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's mass is 2980 Earth masses, roughly 9.38 times Jupiter's mass and larger than Earth's. Its orbital period is 7590 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
12
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 |
|---|---|---|---|---|---|---|---|---|
| 5331.3 | — | 1.05 | — | -0.10 | — | 47.75 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 47.75 | Valenti & Fischer 2005 | TICv8 |
| — | — | — | — | — | — | 47.75 | Nidever et al. 2002 | TICv8 |
| 5386 | 1.01 | — | — | — | G8 IV | 47.75 | Xiao et al. 2023 | TICv8 |
| — | — | — | — | — | G5 | 47.75 | Cannon & Pickering 1918 | TICv8 |
| — | — | — | — | — | — | 47.75 | Wright et al. 2004 | TICv8 |
| 5372.8 | 0.97 | 1.06 | — | — | — | 47.75 | Rosenthal et al. 2021 | TICv8 |
| — | — | — | — | — | G8 IV | 47.75 | Michigan Catalog, Vol. 5 | TICv8 |
| — | 0.94 | — | — | — | — | 47.75 | Feng et al. 2022 | TICv8 |
| 5398.3 | 0.94 | 1.01 | — | -0.10 | — | 47.75 | TICv8 | TICv8 |
| — | 1.01 | — | — | — | — | 47.75 | An et al. 2025 | TICv8 |
| 5386 | 1.01 | 1.05 | 6.32 | — | G5 | 47.75 | Rickman et al. 2019 | TICv8 |