Temperature
5085 K
5003 to 5121
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Stellar HostProfile
HD 212771
Unclassified star • 111.2 pc
Records
9
literature rows
Planets
1
system count
References
10
distinct source labels
HD: HD 212771HIP: HIP 110813TIC: TIC 12723961
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: Jofré et al. 2015 • System source: TICv8
Mass
1.60 Msun
1.15 to 2.41
Radius
4.26 Rsun
4.26 to 5.27
Age
1.92 Gyr
1.92 to 6
Luminosity
1.18 log(Lsun)
1.06 to 1.19
Distance
111.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 4.26 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 212771
4.26 R☉
System Layout
Known planets
1 planets linked to this host
HD 212771 b
Radial Velocity
◌
Discovery
2009
Period
380.7 days
Radius
—
Mass
759.6 M⊕
Eq. Temp
—
HD 212771 and Its Planet
HD 212771 is a G-type star 363 light-years away. It is 1.92 billion years old, and its measurements include a mass of 1.6 solar masses, a radius of 4.26 solar radii, and a temperature of 5090 K. Its reported mass and radius estimates are larger than the Sun's, while its reported temperature is cooler than the Sun's.
One planet orbits this host. HD 212771 b was discovered in 2009 using 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. This planet has a minimum mass of 760 Earth masses and an orbital period of 381 days. Its minimum mass is larger than Earth's and roughly 2.39 times Jupiter's mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Stellar refs
9
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 |
|---|---|---|---|---|---|---|---|---|
| 5091 | 1.51 | — | — | — | — | 111.2 | Mortier et al. 2013 | TICv8 |
| 5069 | 2.41 | 4.55 | — | — | — | 111.2 | Stassun et al. 2017 | TICv8 |
| 5085 | 1.60 | 4.26 | 1.92 | 1.18 | — | 111.2 | Jofré et al. 2015 | TICv8 |
| — | — | — | — | — | G8 IV | 111.2 | Michigan Catalog, Vol. 4 | TICv8 |
| 5069 | — | 4.41 | — | 1.06 | — | 111.2 | Gaia DR2 | TICv8 |
| 5003 | 1.56 | 5.27 | — | — | — | 111.2 | Luhn et al. 2019 | TICv8 |
| — | — | — | — | — | G5 | 111.2 | Cannon & Pickering 1918 | TICv8 |
| 5003 | — | 4.62 | — | — | — | 111.2 | TICv8 | TICv8 |
| 5121 | 1.15 | 5 | 6 | 1.19 | — | 111.2 | Johnson et al. 2010 | TICv8 |