Temperature
5484.4 K
5333 to 5516
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Stellar HostProfile
Kepler-1891
Unclassified star • 596.2 pc
Records
8
literature rows
Planets
1
system count
References
9
distinct source labels
TIC: TIC 159221689
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 • System source: TICv8
Mass
0.96 Msun
0.87 to 0.96
Radius
0.85 Rsun
0.82 to 0.87
Luminosity
-0.23 log(Lsun)
single adopted value
Distance
596.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.85 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-1891
0.85 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1891 b
Transit
◌
Discovery
2021
Period
4.02 days
Radius
1.52 R⊕
Mass
—
Eq. Temp
—
Kepler-1891 b: A Super-Earth in a Four-Day Orbit
Kepler-1891 is a star 1940 light-years away with one known planet. The host star has a reported mass estimate of 0.96 solar masses, a radius estimate of 0.849 solar radii, and a temperature of 5480 K, making it slightly smaller, less massive, and cooler than the Sun.
The system's sole known planet, Kepler-1891 b, is classified as a Super-Earth, a size class that extends to 2.5 times Earth's radius. It was discovered in 2021 by the transit method - detecting the small dip in starlight when a planet crosses in front of its star, with repeated dips establishing its orbital period. That period is 4.02 days, and its radius is 1.52 Earth radii, larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
8
Stellar refs
8
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositystable
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5506 | 0.88 | 0.82 | 3.70 | — | — | 596.2 | Q1-Q8 KOI Table | TICv8 |
| 5484.4 | 0.96 | 0.85 | — | -0.23 | — | 596.2 | TICv8 | TICv8 |
| 5516 | 0.88 | 0.82 | — | — | — | 596.2 | Q1-Q16 KOI Table | TICv8 |
| 5333 | — | 0.87 | — | — | — | 596.2 | Latham et al. 2005 | TICv8 |
| 5516 | 0.88 | 0.82 | — | — | — | 596.2 | Q1-Q12 KOI Table | TICv8 |
| 5516 | 0.88 | 0.82 | — | — | — | 596.2 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5516 | 0.87 | 0.83 | — | — | — | 596.2 | Q1-Q17 DR25 KOI Table | TICv8 |
| — | — | — | — | — | — | 596.2 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |