Temperature
5536 K
5378 to 6002
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Stellar HostProfile
Kepler-291
Unclassified star • 1786.5 pc
Records
22
literature rows
Planets
2
system count
References
16
distinct source labels
TIC: TIC 158631683
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: Morton et al. 2016 • System source: TICv8
Mass
0.90 Msun
0.90 to 1.09
Radius
0.87 Rsun
0.80 to 1.26
Age
4.37 Gyr
0.30 to 7.76
Distance
1786.5 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.87 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-291
0.87 R☉
System Layout
Known planets
2 planets linked to this host
Kepler-291 b
Transit
◌
Discovery
2014
Period
3.55 days
Radius
2.16 R⊕
Mass
—
Eq. Temp
—
Kepler-291 c
Transit
◌
Discovery
2014
Period
5.70 days
Radius
1.88 R⊕
Mass
—
Eq. Temp
—
Kepler-291 and Its Two Super-Earths
Kepler-291 is a star 5830 light-years away with two planets orbiting it: Kepler-291 b and Kepler-291 c. The star is 4.37 billion years old, with a mass of 0.9 solar masses, a radius of 0.87 solar radii, and a temperature of 5540 K. Its mass and radius are smaller than the Sun's, and its temperature is cooler.
Both planets were found by transit in 2014 and both are classified as Super-Earths, a size class that reaches 2.5 times Earth's radius. Kepler-291 b has an orbital period of 3.55 days and a radius of 2.16 Earth radii, larger than Earth's and the largest among the listed planets. Kepler-291 c has an orbital period of 5.7 days and a radius of 1.88 Earth radii, also larger than Earth's and the smallest radius among the listed planets. Among these two planets, Kepler-291 b has the shortest year and Kepler-291 c the longest.
Provenance
Underlying measurements and references
Evidence Summary
Rows
22
Stellar refs
15
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 |
|---|---|---|---|---|---|---|---|---|
| 5702 | — | 0.94 | — | — | — | 1786.5 | Q1-Q6 KOI Table | TICv8 |
| 5378 | — | 1.26 | — | 0.08 | — | 1786.5 | Gaia DR2 | TICv8 |
| 6002 | — | 1.02 | — | — | — | 1786.5 | Rowe et al. 2014 | TICv8 |
| 5993 | 1.09 | 0.99 | — | — | — | 1786.5 | Q1-Q12 KOI Table | TICv8 |
| 5637 | — | 1.23 | — | — | — | 1786.5 | Berger et al. 2018 | TICv8 |
| 5934 | 1.01 | 0.91 | 0.30 | — | — | 1786.5 | Q1-Q8 KOI Table | TICv8 |
| 5993 | 1.09 | 0.99 | — | — | — | 1786.5 | Q1-Q16 KOI Table | TICv8 |
| 5993 | 1.09 | 0.99 | — | — | — | 1786.5 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5993 | 1.09 | 0.99 | — | — | — | 1786.5 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5702 | — | 0.94 | — | — | — | 1786.5 | Q1-Q6 KOI Table | TICv8 |
| 5702 | 1.03 | 0.94 | — | — | — | 1786.5 | Batalha et al. 2013 | TICv8 |
| 5482 | 0.96 | 1.20 | — | 0.07 | — | 1786.5 | TICv8 | TICv8 |
| 5637 | 1.02 | 1.18 | 7.76 | — | — | 1786.5 | Fulton & Petigura 2018 | TICv8 |
| 5993 | 1.09 | 0.99 | — | — | — | 1786.5 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5702 | — | 0.80 | — | — | — | 1786.5 | Latham et al. 2005 | TICv8 |
| 5934 | 1.01 | 0.91 | 0.30 | — | — | 1786.5 | Q1-Q8 KOI Table | TICv8 |
| — | — | — | — | — | — | 1786.5 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5993 | 1.09 | 0.99 | — | — | — | 1786.5 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5993 | 1.09 | 0.99 | — | — | — | 1786.5 | Q1-Q12 KOI Table | TICv8 |
| 5993 | 1.09 | 0.99 | — | — | — | 1786.5 | Q1-Q16 KOI Table | TICv8 |
| 5536 | 0.90 | 0.87 | 4.37 | — | — | 1786.5 | Morton et al. 2016 | TICv8 |
| — | — | — | — | — | — | 1786.5 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |