Temperature
4989 K
4929 to 5040
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Stellar HostProfile
HD 180902
Unclassified star • 104.6 pc
Records
9
literature rows
Planets
1
system count
References
10
distinct source labels
HD: HD 180902HIP: HIP 94951TIC: TIC 11782681
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
1.51 Msun
1.41 to 1.53
Radius
3.94 Rsun
3.78 to 4.16
Age
2.48 Gyr
2.48 to 2.80
Luminosity
1.09 log(Lsun)
0.95 to 1.09
Distance
104.6 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 3.94 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
HD 180902
3.94 R☉
System Layout
Known planets
1 planets linked to this host
HD 180902 b
Radial Velocity
◌
Discovery
2009
Period
510.9 days
Radius
—
Mass
535.5 M⊕
Eq. Temp
—
HD 180902 and Its Planet
HD 180902 is a K0 star 341 light-years away, and one planet has been found in orbit around it. The star is estimated to be 2.48 billion years old. Its mass is 1.51 solar masses, larger than the Sun's, and its radius is 3.94 solar radii, also larger than the Sun's. Its temperature of 4990 K is cooler than the Sun's.
The planet HD 180902 b was discovered in 2009 by the radial velocity method, which detects the wobble a planet's gravity induces in its star's motion. Its minimum mass is 536 Earth masses, a lower bound on its true mass that is larger than Earth's and roughly 1.69 times Jupiter's mass. The planet completes an orbit every 511 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
9
Stellar refs
9
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 |
|---|---|---|---|---|---|---|---|---|
| 4989 | 1.51 | 3.94 | 2.48 | 1.09 | — | 104.6 | Jofré et al. 2015 | TICv8 |
| 4961 | — | 4.09 | — | — | — | 104.6 | TICv8 | TICv8 |
| 5030 | 1.52 | 4.10 | 2.80 | 0.97 | — | 104.6 | Johnson et al. 2010 | TICv8 |
| 4961 | 1.41 | 4.16 | — | — | — | 104.6 | Luhn et al. 2019 | TICv8 |
| — | — | — | — | — | K0 | 104.6 | Cannon & Pickering 1918 | TICv8 |
| 4929 | — | 4.12 | — | 0.95 | — | 104.6 | Gaia DR2 | TICv8 |
| 4992 | 1.52 | 3.78 | — | — | — | 104.6 | Stassun et al. 2017 | TICv8 |
| — | — | — | — | — | K0 III/IV | 104.6 | Michigan Catalog, Vol. 4 | TICv8 |
| 5040 | 1.53 | — | — | — | — | 104.6 | Mortier et al. 2013 | TICv8 |