Temperature
5463 K
5351 to 5463
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Stellar HostProfile
HD 216770
Unclassified star • 36.66 pc
Records
14
literature rows
Planets
1
system count
References
15
distinct source labels
TIC: TIC 47526465HIP: HIP 113238HD: HD 216770
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
1 Msun
0.74 to 1
Radius
0.86 Rsun
0.86 to 0.97
Age
1 Gyr
1 to 3.10
Luminosity
-0.23 log(Lsun)
-0.23 to -0.10
Distance
36.66 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.86 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 216770
0.86 R☉
System Layout
Known planets
1 planets linked to this host
HD 216770 b
Radial Velocity
◌
Discovery
2003
Period
118.5 days
Radius
—
Mass
181.2 M⊕
Eq. Temp
—
HD 216770: A Sun-Like Star and Its One Known Planet
HD 216770 is a G-type star 120 light-years away. Its spectral type of G5 marks it as Sun-like, and it is the only star in its system. The star has a mass of 1 solar masses and a radius of 0.86 solar radii, making its reported radius estimate smaller than the Sun’s. Its reported temperature of 5460 K is cooler than the Sun’s. An age upper limit of 1 billion years has been reported for the star.
One planet is known to orbit HD 216770. HD 216770 b was discovered in 2003 by the radial velocity method, which detects the wobble a planet’s gravity induces in its star’s motion. The planet has a minimum mass of 181 Earth masses, a lower bound on its true mass that is larger than Earth’s. It completes an orbit every 118 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
14
Stellar refs
14
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 |
|---|---|---|---|---|---|---|---|---|
| 5394.9 | 0.94 | 0.96 | — | -0.15 | — | 36.66 | TICv8 | TICv8 |
| — | — | — | — | — | — | 36.66 | Henry et al. 1996 | TICv8 |
| — | 0.90 | — | 3.10 | -0.10 | — | 36.66 | Mayor et al. 2004 | TICv8 |
| — | — | — | — | — | — | 36.66 | Nordstrom et al. 2004 | TICv8 |
| — | — | — | — | — | K0 V | 36.66 | Michigan Catalog, Vol. 3 | TICv8 |
| 5424 | 0.89 | — | — | -0.13 | — | 36.66 | Sousa et al. 2008 | TICv8 |
| 5463 | 1 | 0.86 | 1 | -0.23 | — | 36.66 | Ghezzi et al. 2010 | TICv8 |
| 5399 | 0.74 | 0.93 | — | — | — | 36.66 | Stassun et al. 2017 | TICv8 |
| 5385.3 | — | 0.97 | — | -0.15 | — | 36.66 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 36.66 | Wright et al. 2004 | TICv8 |
| 5423 | 0.91 | — | — | — | — | 36.66 | Santos et al. 2004 | TICv8 |
| 5351 | — | — | — | — | — | 36.66 | Suárez-Andrés et al. 2016 | TICv8 |
| — | — | — | — | — | G9 V CN+1 | 36.66 | Gray et al. 2006 | TICv8 |
| — | — | — | — | — | G5 | 36.66 | Cannon & Pickering 1918 | TICv8 |