Temperature
5552 K
5505 to 5552
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Stellar HostProfile
HD 290327
G8 V • 56.43 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 4205424HIP: HIP 25191HD: HD 290327
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: Naef et al. 2010 • System source: TICv8
Mass
0.90 Msun
0.84 to 0.97
Radius
1 Rsun
0.92 to 1
Luminosity
-0.14 log(Lsun)
-0.14 to -0.14
Distance
56.43 pc
single adopted value
Spectral Type
G8 V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 290327
1 R☉
System Layout
Known planets
1 planets linked to this host
HD 290327 b
Radial Velocity
◌
Discovery
2009
Period
2443 days
Radius
—
Mass
772.3 M⊕
Eq. Temp
—
HD 290327 and Its Planet
HD 290327 is a G8 V star 184 light-years away, with a mass of 0.9 solar masses, a radius of 1 solar radii, and a temperature of 5550 K. Its reported mass estimate is smaller than the Sun's, and its reported temperature is cooler than the Sun's. One planet orbits this host.
That planet is HD 290327 b, discovered in 2009 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. It has a minimum mass of 772 Earth masses, a lower bound on its true mass that is larger than Earth's and roughly 2.43 times Jupiter's mass, and an orbital period of 2440 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | G0 | 56.43 | Nesterov et al. 1995 | TICv8 |
| 5505 | 0.97 | 0.94 | — | -0.14 | — | 56.43 | TICv8 | TICv8 |
| 5545.8 | — | 0.92 | — | -0.14 | — | 56.43 | Gaia DR2 | TICv8 |
| 5505 | 0.84 | 0.95 | — | — | — | 56.43 | Stassun et al. 2017 | TICv8 |
| 5552 | 0.90 | 1 | — | -0.14 | G8 V | 56.43 | Naef et al. 2010 | TICv8 |