Temperature
5827 K
5807 to 5891
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Stellar HostProfile
HD 219828
Unclassified star • 73.11 pc
Records
12
literature rows
Planets
2
system count
References
12
distinct source labels
HIP: HIP 115100TIC: TIC 243085377HD: HD 219828
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
1.20 Msun
1.04 to 1.31
Radius
1.52 Rsun
1.52 to 1.69
Age
7 Gyr
4.75 to 7
Luminosity
0.38 log(Lsun)
0.38 to 0.52
Distance
73.11 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.52 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 219828
1.52 R☉
System Layout
Known planets
2 planets linked to this host
HD 219828 b
Radial Velocity
◌
Discovery
2007
Period
3.83 days
Radius
—
Mass
19.07 M⊕
Eq. Temp
—
HD 219828 c
Radial Velocity
◌
Discovery
2016
Period
4789.9 days
Radius
—
Mass
5102.4 M⊕
Eq. Temp
—
HD 219828: A Sun-Like Star With Two Known Planets
HD 219828 is a G-type star 238 light-years from Earth, and two planets have been found around it. The star is 7 billion years old, with a reported mass of 1.2 solar masses and a radius of 1.52 solar radii, making both its mass and radius larger than the Sun's. Its temperature of 5830 K is also hotter than the Sun's.
The planet HD 219828 b was discovered in 2007 through the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. It has a minimum mass of 19.1 Earth masses - a lower bound on its true mass - and completes an orbit in 3.83 days, the shortest period among the listed planets.
HD 219828 c, discovered in 2016 by the same method, has a reported mass of 5100 Earth masses, roughly 16.1 times Jupiter's mass and larger than Earth's. It takes 4790 days to orbit the star, the longest period among the listed planets.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
11
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 |
|---|---|---|---|---|---|---|---|---|
| — | 1.04 | — | — | — | — | 73.11 | Feng et al. 2022 | TICv8 |
| 5869 | 1.31 | 1.56 | — | — | — | 73.11 | Stassun et al. 2017 | TICv8 |
| 5891 | 1.23 | 1.69 | — | 0.49 | G0 IV | 73.11 | Santos et al. 2016 | TICv8 |
| — | — | — | — | — | G0 | 73.11 | Cannon & Pickering 1918 | TICv8 |
| 5831.5 | — | 1.64 | — | 0.45 | — | 73.11 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 73.11 | Nordstrom et al. 2004 | TICv8 |
| — | — | — | — | — | — | 73.11 | Santos et al. 2016 | TICv8 |
| 5827 | 1.20 | 1.52 | 7 | 0.38 | — | 73.11 | Ghezzi et al. 2010 | TICv8 |
| 5891 | 1.24 | — | — | 0.52 | G0 IV | 73.11 | Melo et al. 2007 | TICv8 |
| 5807 | 1.04 | 1.65 | — | 0.45 | — | 73.11 | TICv8 | TICv8 |
| 5807 | 1.18 | 1.61 | 5.69 | 0.42 | G0 IV | 73.11 | Ment et al. 2018 | TICv8 |
| 5842 | 1.19 | 1.68 | 4.75 | 0.48 | — | 73.11 | Jofré et al. 2015 | TICv8 |