Temperature
4392 K
4230 to 4556.5
←Back to Stellar Hosts
Stellar HostProfile
Kepler-991
Unclassified star • 389.6 pc
Records
13
literature rows
Planets
1
system count
References
14
distinct source labels
TIC: TIC 28084836
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
0.64 Msun
0.51 to 0.69
Radius
0.61 Rsun
0.49 to 0.90
Age
3.47 Gyr
3.47 to 14
Distance
389.6 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.61 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-991
0.61 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-991 b
Transit
◌
Discovery
2016
Period
82.53 days
Radius
2.54 R⊕
Mass
—
Eq. Temp
—
Kepler-991 and Its Neptune-Like Planet
Kepler-991 is a star located 1270 light-years away. It has one known planet, Kepler-991 b, discovered in 2016 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. The host star is 3.47 billion years old and has a mass of 0.64 solar masses and a radius of 0.61 solar radii, both smaller than the Sun's. Its temperature of 4390 K is cooler than the Sun's.
Kepler-991 b is a Neptune-like planet, a size class that reaches 4 times Earth's radius. Its radius of 2.54 Earth radii is larger than Earth's, while its orbital period of 82.5 days is the time it takes to complete one orbit.
Provenance
Underlying measurements and references
Evidence Summary
Rows
13
Stellar refs
13
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 |
|---|---|---|---|---|---|---|---|---|
| 4450 | 0.62 | 0.59 | 14 | — | — | 389.6 | Q1-Q8 KOI Table | TICv8 |
| 4402 | 0.69 | 0.66 | — | -0.83 | — | 389.6 | TICv8 | TICv8 |
| 4316 | 0.58 | 0.58 | — | — | — | 389.6 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4318 | — | 0.65 | — | — | — | 389.6 | Berger et al. 2018 | TICv8 |
| 4230 | — | 0.49 | — | — | — | 389.6 | Q1-Q6 KOI Table | TICv8 |
| 4230 | 0.51 | 0.49 | — | — | — | 389.6 | Batalha et al. 2013 | TICv8 |
| — | — | — | — | — | — | 389.6 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4556.5 | — | 0.57 | — | -0.90 | — | 389.6 | Gaia DR2 | TICv8 |
| 4237 | 0.56 | 0.56 | — | — | — | 389.6 | Q1-Q16 KOI Table | TICv8 |
| 4237 | 0.56 | 0.56 | — | — | — | 389.6 | Q1-Q12 KOI Table | TICv8 |
| 4392 | 0.64 | 0.61 | 3.47 | — | — | 389.6 | Morton et al. 2016 | TICv8 |
| 4237 | 0.56 | 0.56 | — | — | — | 389.6 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4230 | — | 0.90 | — | — | — | 389.6 | Latham et al. 2005 | TICv8 |