Temperature
4816 K
4673 to 4907
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Stellar HostProfile
HD 5891
Unclassified star • 283.5 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
HD: HD 5891TIC: TIC 243146568HIP: HIP 4715
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
1.03 Msun
1.03 to 1.93
Radius
5.80 Rsun
5.80 to 10.71
Age
8.30 Gyr
1.50 to 8.30
Luminosity
1.23 log(Lsun)
1.23 to 1.72
Distance
283.5 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 5.80 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 5891
5.80 R☉
System Layout
Known planets
1 planets linked to this host
HD 5891 b
Radial Velocity
◌
Discovery
2011
Period
177.1 days
Radius
—
Mass
2425.0 M⊕
Eq. Temp
—
HD 5891 and Its Planet
HD 5891 is a G5 star 925 light-years away. It is 8.3 billion years old, has 1.03 solar masses, and a radius of 5.8 solar radii, which is larger than the Sun's. Its temperature of 4820 K is cooler than the Sun's. One planet orbits this star.
HD 5891 b was discovered in 2011 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. The planet has a minimum mass of 2430 Earth masses, a lower bound on its true mass, and an orbital period of 177 days. Its minimum mass is larger than Earth's and roughly 7.63 times Jupiter's mass.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4907 | 1.91 | 8.70 | 1.50 | 1.60 | — | 283.5 | Johnson et al. 2011 | TICv8 |
| — | — | — | — | — | G5 | 283.5 | Cannon & Pickering 1918 | TICv8 |
| 4816 | 1.03 | 5.80 | 8.30 | 1.23 | — | 283.5 | Jofré et al. 2015 | TICv8 |
| 4673 | 1.93 | 10.64 | — | — | — | 283.5 | Stassun et al. 2017 | TICv8 |
| 4816 | — | 10.71 | — | — | — | 283.5 | TICv8 | TICv8 |
| 4825 | 1.09 | — | — | — | — | 283.5 | Mortier et al. 2013 | TICv8 |
| 4870.1 | — | 10.19 | — | 1.72 | — | 283.5 | Gaia DR2 | TICv8 |