Temperature
6147 K
6075.8 to 6300
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Stellar HostProfile
HD 149026
G0 IV • 75.86 pc
Records
17
literature rows
Planets
1
system count
References
18
distinct source labels
HD: HD 149026TIC: TIC 255930614HIP: HIP 80838
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: Sato et al. 2005 • System source: TICv8
Mass
1.30 Msun
1.14 to 1.42
Radius
1.45 Rsun
1.21 to 1.54
Age
2 Gyr
1.20 to 2.60
Luminosity
0.43 log(Lsun)
0.39 to 0.48
Distance
75.86 pc
single adopted value
Spectral Type
G0 IV
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.45 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 149026
1.45 R☉
System Layout
Known planets
1 planets linked to this host
HD 149026 b
Radial Velocity
◌
Discovery
2005
Period
2.88 days
Radius
8.29 R⊕
Mass
120.8 M⊕
Eq. Temp
—
HD 149026 and Its Jupiter-Like Planet
HD 149026 is a G0 IV star 247 light-years away. It is 2 billion years old, has 1.3 solar masses, 1.45 solar radii, and a temperature of 6150 K. Its mass and radius are larger than the Sun's, and it is hotter than the Sun. One planet orbits this host.
That planet is HD 149026 b, a Jupiter-like world discovered in 2005 by the radial velocity method, which detects the wobble a planet's gravity induces in its star. It has a mass of 121 Earth masses and a radius of 8.29 Earth radii, both larger than Earth's. Its mean density is 1.17 g/cm³, 0.212 times Earth's. It completes one orbit every 2.88 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
17
Stellar refs
17
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | G0 | 75.86 | Cannon & Pickering 1918 | TICv8 |
| — | — | — | — | — | — | 75.86 | Albrecht et al. 2012 | TICv8 |
| 6160 | 1.29 | 1.37 | 1.90 | 0.39 | — | 75.86 | Torres et al. 2008 | TICv8 |
| 6160 | — | — | — | — | — | 75.86 | Zhang et al. 2018 | TICv8 |
| 6084 | 1.14 | 1.46 | — | 0.42 | — | 75.86 | TICv8 | TICv8 |
| 6179 | 1.42 | 1.41 | — | — | — | 75.86 | Stassun et al. 2017 | TICv8 |
| 6300 | — | — | — | — | — | 75.86 | Maldonado et al. 2015 | TICv8 |
| 6160 | 1.34 | 1.53 | 2.60 | — | — | 75.86 | Bonomo et al. 2017 | TICv8 |
| 6147 | 1.30 | 1.45 | 2 | 0.43 | G0 IV | 75.86 | Sato et al. 2005 | TICv8 |
| 6147 | 1.27 | 1.29 | 1.20 | — | — | 75.86 | Southworth 2010 | TICv8 |
| 6160 | 1.34 | 1.54 | 2.60 | 0.48 | — | 75.86 | Carter et al. 2009 | TICv8 |
| — | 1.34 | — | — | — | — | 75.86 | Knutson et al. 2014 | TICv8 |
| 6084 | — | 1.46 | — | — | — | 75.86 | ExoFOP | TICv8 |
| 6084 | 1.30 | 1.50 | 2.22 | 0.44 | G0 | 75.86 | Ment et al. 2018 | TICv8 |
| 6075.8 | — | 1.47 | — | 0.42 | — | 75.86 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 75.86 | Nordstrom et al. 2004 | TICv8 |
| 6162 | 1.26 | 1.21 | — | — | — | 75.86 | Mortier et al. 2013 | TICv8 |