Temperature
5564 K
5564 to 5668
←Back to Stellar Hosts
Stellar HostProfile
HD 178911 B
Unclassified star • 40.97 pc
Records
11
literature rows
Planets
1
system count
References
12
distinct source labels
HD: HD 178911 BHIP: HIP 94075TIC: TIC 42812945
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: TICv8 • System source: TICv8
Mass
0.98 Msun
0.87 to 1.24
Radius
1.02 Rsun
1.01 to 1.08
Luminosity
-0.04 log(Lsun)
-0.04 to -0.04
Distance
40.97 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.02 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 178911 B
1.02 R☉
System Layout
Known planets
1 planets linked to this host
HD 178911 B b
Radial Velocity
◌
Discovery
2001
Period
71.48 days
Radius
—
Mass
2552.2 M⊕
Eq. Temp
—
HD 178911 B and Its Planet
HD 178911 B is a G5 star 134 light-years away with one known planet. The star has a mass of 0.98 solar masses and a radius of 1.02 solar radii. Its temperature of 5560 K is cooler than the Sun's.
The planet HD 178911 B b was found in 2001 by the radial velocity method. Its minimum mass is 2550 Earth masses, which is roughly 8.03 times Jupiter's mass and larger than Earth's. HD 178911 B b completes an orbit every 71.5 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
11
Stellar refs
11
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5668 | 1.06 | — | — | — | — | 40.97 | Butler et al. 2006 | TICv8 |
| 5668 | 1.01 | — | — | — | G5 | 40.97 | Wittenmyer et al. 2009 | TICv8 |
| — | 0.87 | — | — | — | — | 40.97 | Zucker et al. 2002 | TICv8 |
| 5588 | 1.24 | 1.08 | — | — | — | 40.97 | Stassun et al. 2017 | TICv8 |
| — | — | — | — | — | G5 | 40.97 | AGK 3 Catalog | TICv8 |
| — | — | — | — | — | — | 40.97 | Wright et al. 2004 | TICv8 |
| 5564 | 0.98 | 1.02 | — | -0.04 | — | 40.97 | TICv8 | TICv8 |
| — | — | — | — | — | — | 40.97 | Nordstrom et al. 2004 | TICv8 |
| 5576.1 | 1.03 | 1.03 | — | — | — | 40.97 | Rosenthal et al. 2021 | TICv8 |
| 5596 | — | 1.01 | — | -0.04 | — | 40.97 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 40.97 | Valenti & Fischer 2005 | TICv8 |