Temperature
4923.6 K
4845 to 4925
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Stellar HostProfile
Kepler-1731
Unclassified star โข 169.9 pc
Records
10
literature rows
Planets
1
system count
References
11
distinct source labels
TIC: TIC 137099260
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 โข System source: TICv8
Mass
0.81 Msun
0.71 to 0.81
Radius
0.69 Rsun
0.69 to 0.79
Luminosity
-0.60 log(Lsun)
single adopted value
Distance
169.9 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.69 Rโ (circles scaled linearly by radius)
Sun
1.0 Rโ baseline
Kepler-1731
0.69 Rโ
System Layout
Known planets
1 planets linked to this host
Kepler-1731 b
Transit
โ
Discovery
2021
Period
21.76 days
Radius
2.93 Rโ
Mass
โ
Eq. Temp
โ
Kepler-1731 and Its Neptune-Like Planet
Kepler-1731 is a single star located 554 light-years away. Its reported mass estimate is 0.808 solar masses, smaller than the Sun's, and its reported radius estimate is 0.689 solar radii, also smaller than the Sun's. The star's reported temperature is 4920 K, cooler than the Sun's. One planet is known to orbit this host.
That planet, Kepler-1731 b, is a Neptune-like world discovered by transit in 2021. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness; repeated dips help establish orbital periods. Kepler-1731 b orbits every 21.8 days, and its radius estimate is 2.93 Earth radii, larger than Earth's. Size classes compare radius with Earth's, and a Neptune-like planet reaches 4 times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
10
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositystable
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4845 | โ | โ | โ | โ | โ | 169.9 | Q1-Q6 KOI Table | TICv8 |
| โ | โ | โ | โ | โ | โ | 169.9 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4919 | 0.72 | 0.72 | โ | โ | โ | 169.9 | Q1-Q12 KOI Table | TICv8 |
| 4859 | 0.78 | 0.72 | โ | โ | โ | 169.9 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4925 | 0.77 | 0.70 | 2.14 | โ | โ | 169.9 | Fulton & Petigura 2018 | TICv8 |
| 4923.6 | 0.81 | 0.69 | โ | -0.60 | โ | 169.9 | TICv8 | TICv8 |
| 4919 | 0.72 | 0.72 | โ | โ | โ | 169.9 | Q1-Q16 KOI Table | TICv8 |
| 4919 | 0.72 | 0.72 | โ | โ | โ | 169.9 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4917 | 0.71 | 0.70 | 13.90 | โ | โ | 169.9 | Q1-Q8 KOI Table | TICv8 |
| 4845 | โ | 0.79 | โ | โ | โ | 169.9 | Latham et al. 2005 | TICv8 |