Temperature
4340 K
4021 to 4340
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Stellar HostProfile
Kepler-441
Unclassified star • 268.0 pc
Records
13
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 267667567
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: Torres et al. 2015 • System source: TICv8
Mass
0.57 Msun
0.57 to 0.64
Radius
0.55 Rsun
0.51 to 0.85
Age
1.90 Gyr
1.90 to 3.72
Luminosity
-1.05 log(Lsun)
-1.15 to -1.05
Distance
268.0 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.55 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-441
0.55 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-441 b
Transit
◌
Discovery
2015
Period
207.2 days
Radius
1.64 R⊕
Mass
—
Eq. Temp
—
Kepler-441 and Its Super-Earth
Kepler-441 is a star 874 light-years away with one known planet. The host star is 1.9 billion years old, with a mass of 0.572 solar masses and a radius of 0.55 solar radii. Its temperature is 4340 K. The star's reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.
The planet, Kepler-441 b, is a Super-Earth discovered by transit in 2015. 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-441 b orbits its star every 207 days and has a radius of 1.64 Earth radii. That reported radius estimate is larger than Earth's. Super-Earth is a size class: it reaches 2.5 times Earth's radius, comparing radius rather than composition.
Provenance
Underlying measurements and references
Evidence Summary
Rows
13
Stellar refs
11
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4243 | 0.62 | 0.63 | — | — | — | 268.0 | Q1-Q16 KOI Table | TICv8 |
| 4340 | 0.57 | 0.55 | 1.90 | -1.05 | — | 268.0 | Torres et al. 2015 | TICv8 |
| 4340 | — | 0.52 | — | — | — | 268.0 | Berger et al. 2018 | TICv8 |
| — | — | — | — | — | — | 268.0 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4021 | 0.58 | 0.58 | — | -1.09 | — | 268.0 | TICv8 | TICv8 |
| 4243 | 0.62 | 0.63 | — | — | — | 268.0 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4195 | — | 0.51 | — | -1.15 | — | 268.0 | Gaia DR2 | TICv8 |
| 4243 | 0.62 | 0.63 | — | — | — | 268.0 | Q1-Q12 KOI Table | TICv8 |
| 4339 | 0.57 | 0.55 | — | — | — | 268.0 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4084 | — | 0.85 | — | — | — | 268.0 | Latham et al. 2005 | TICv8 |
| — | — | — | — | — | — | 268.0 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4158 | 0.64 | 0.62 | 3.72 | — | — | 268.0 | Morton et al. 2016 | TICv8 |
| 4339 | 0.57 | 0.55 | — | — | — | 268.0 | Q1-Q17 DR25 KOI Table | TICv8 |