Temperature
6022 K
5888 to 6022
←Back to Stellar Hosts
Stellar HostProfile
Kepler-1581
Unclassified star • 493.2 pc
Records
20
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 121215710
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
1.12 Msun
1.04 to 1.12
Radius
1.23 Rsun
1.22 to 1.45
Age
4.17 Gyr
4.17 to 6.17
Distance
493.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.23 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-1581
1.23 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1581 b
Transit
◌
Discovery
2016
Period
6.28 days
Radius
0.80 R⊕
Mass
—
Eq. Temp
—
Kepler-1581 and Its Sub-Earth Planet
Kepler-1581 is a star 1610 light-years away with an age of 4.17 billion years, a mass of 1.12 solar masses, a radius of 1.23 solar radii, and a temperature of 6020 K. Its reported mass and radius estimates are larger than the Sun's, and its reported temperature is hotter than the Sun's. One planet is known to orbit this star.
That planet, Kepler-1581 b, was 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; repeated dips help establish orbital periods. Kepler-1581 b orbits every 6.28 days and has a radius of 0.8 Earth radii, smaller than Earth's. This radius places it in the Sub-Earth size class, which compares radius with Earth's rather than indicating composition.
Provenance
Underlying measurements and references
Evidence Summary
Rows
20
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 |
|---|---|---|---|---|---|---|---|---|
| 5888 | 1.04 | 1.23 | — | — | — | 493.2 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5965.5 | — | 1.36 | — | 0.33 | — | 493.2 | Gaia DR2 | TICv8 |
| 5989 | 1.07 | 1.22 | — | — | — | 493.2 | Q1-Q17 DR24 KOI Table | TICv8 |
| — | — | — | — | — | — | 493.2 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5932 | 1.09 | 1.38 | 6.17 | — | — | 493.2 | Fulton & Petigura 2018 | TICv8 |
| — | — | — | — | — | — | 493.2 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5932 | — | 1.39 | — | — | — | 493.2 | Berger et al. 2018 | TICv8 |
| 5888 | 1.04 | 1.23 | — | — | — | 493.2 | Q1-Q17 DR25 KOI Table | TICv8 |
| 6022 | 1.12 | 1.23 | 4.17 | — | — | 493.2 | Morton et al. 2016 | TICv8 |
| 5995.2 | 1.10 | 1.45 | — | 0.39 | — | 493.2 | TICv8 | TICv8 |
| 5989 | 1.07 | 1.22 | — | — | — | 493.2 | Q1-Q16 KOI Table | TICv8 |
| 5989 | 1.07 | 1.22 | — | — | — | 493.2 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5888 | 1.04 | 1.23 | — | — | — | 493.2 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5968 | — | 1.42 | — | — | — | 493.2 | Latham et al. 2005 | TICv8 |
| 5989 | 1.07 | 1.22 | — | — | — | 493.2 | Q1-Q16 KOI Table | TICv8 |
| 5888 | 1.04 | 1.23 | — | — | — | 493.2 | Q1-Q17 DR25 KOI Table | TICv8 |
| — | — | — | — | — | — | 493.2 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| — | — | — | — | — | — | 493.2 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5989 | 1.07 | 1.22 | — | — | — | 493.2 | Q1-Q12 KOI Table | TICv8 |
| 5989 | 1.07 | 1.22 | — | — | — | 493.2 | Q1-Q12 KOI Table | TICv8 |