Temperature
5529 K
3809 to 5529
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Stellar HostProfile
K2-289
Unclassified star • 274.3 pc
Records
6
literature rows
Planets
1
system count
References
7
distinct source labels
TIC: TIC 413753029
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: Livingston et al. 2019 • System source: TICv8
Mass
0.95 Msun
0.72 to 0.95
Radius
1.02 Rsun
0.38 to 1.24
Distance
274.3 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
K2-289
1.02 R☉
System Layout
Known planets
1 planets linked to this host
K2-289 b
Transit
◌
Discovery
2019
Period
13.16 days
Radius
9.10 R⊕
Mass
—
Eq. Temp
753 K
K2-289 b: A Jupiter-Like Planet in a Close Orbit
K2-289 is a star 895 light-years away with a mass of 0.953 solar masses and a radius of 1.02 solar radii. Its reported temperature is 5530 K, cooler than the Sun's, and its mass estimate is smaller than the Sun's. One planet orbits this host.
That planet, K2-289 b, is a Jupiter-like world discovered by transit in 2019. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. K2-289 b has a radius of 9.1 Earth radii, larger than Earth's, and it completes an orbit every 13.2 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
6
Stellar refs
6
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3816 | — | 0.54 | — | — | — | 274.3 | Vanderburg et al. 2016 | TICv8 |
| 5529 | 0.95 | 1.02 | — | — | — | 274.3 | Livingston et al. 2019 | TICv8 |
| 3877 | — | 1.24 | — | -0.50 | — | 274.3 | Gaia DR2 | TICv8 |
| — | — | 1.24 | — | — | — | 274.3 | Kruse et al. 2019 | TICv8 |
| 4558 | 0.72 | 1.23 | — | -0.23 | — | 274.3 | TICv8 | TICv8 |
| 3809 | — | 0.38 | — | — | — | 274.3 | Crossfield et al. 2016 | TICv8 |