Temperature
5902 K
5902 to 6004.0
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Stellar HostProfile
HD 564
G2/G3 V • 51.17 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
HD: HD 564HIP: HIP 801TIC: TIC 200658785
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: Moutou et al. 2015 • System source: TICv8
Mass
0.96 Msun
0.96 to 1.11
Radius
1.01 Rsun
0.94 to 1.01
Age
5.50 Gyr
single adopted value
Distance
51.17 pc
single adopted value
Spectral Type
G2/G3 V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.01 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 564
1.01 R☉
System Layout
Known planets
1 planets linked to this host
HD 564 b
Radial Velocity
◌
Discovery
2014
Period
492.3 days
Radius
—
Mass
104.9 M⊕
Eq. Temp
—
HD 564 and Its Planet
HD 564 is a G-type main-sequence star 167 light-years away, with a spectral type of G2/G3 V. It is slightly less massive than the Sun at 0.961 solar masses, slightly larger at 1.01 solar radii, and its temperature of 5900 K is hotter than the Sun's. The star is roughly 5.5 billion years old, and one planet orbits it.
That planet, HD 564 b, was discovered in 2014 by the radial velocity method, whose repeated wobbles reveal a planet and its orbital period. It has a minimum mass of 105 Earth masses, larger than Earth's, meaning this value is a lower bound on the planet's true mass rather than an ordinary estimate. HD 564 b completes one orbit in 492 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 51.17 | Nordstrom et al. 2004 | TICv8 |
| 6004.0 | 1.11 | 0.94 | — | 0.02 | — | 51.17 | TICv8 | TICv8 |
| 5902 | 0.96 | 1.01 | 5.50 | — | G2/G3 V | 51.17 | Moutou et al. 2015 | TICv8 |
| — | — | — | — | — | G0 | 51.17 | Cannon & Pickering 1918 | TICv8 |
| — | — | — | — | — | G2/3 V | 51.17 | Michigan Catalog, Vol. 2 | TICv8 |
| 5950 | — | 0.96 | — | 0.02 | — | 51.17 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 51.17 | Henry et al. 1996 | TICv8 |