Temperature
5772 K
5359 to 5772
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Stellar HostProfile
Kepler-581
Unclassified star • 703.8 pc
Records
13
literature rows
Planets
1
system count
References
14
distinct source labels
TIC: TIC 184009313
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 Msun
0.91 to 1.01
Radius
1 Rsun
0.68 to 1.03
Age
4.07 Gyr
0.50 to 4.07
Distance
703.8 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-581
1 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-581 b
Transit
◌
Discovery
2016
Period
40.61 days
Radius
2.63 R⊕
Mass
—
Eq. Temp
—
Kepler-581 and Its Solitary World
Kepler-581 is a star located 2300 light-years away, and it hosts one known planet. The star itself is 4.07 billion years old and has a mass of 1 solar masses and a radius of 1 solar radii, with a temperature of 5770 K.
The planet, Kepler-581 b, was discovered in 2016 by the transit method, which detects the small dip in a star's brightness when a planet crosses in front of it. Kepler-581 b is classified as Neptune-like, a size class that extends to 4 times Earth's radius. Its radius is 2.63 Earth radii, which is larger than Earth's. The planet completes an orbit every 40.6 days.
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 |
|---|---|---|---|---|---|---|---|---|
| 5772 | 1 | 1 | 4.07 | — | — | 703.8 | Morton et al. 2016 | TICv8 |
| 5538 | — | 0.86 | — | — | — | 703.8 | Berger et al. 2018 | TICv8 |
| 5403 | — | 0.68 | — | — | — | 703.8 | Latham et al. 2005 | TICv8 |
| 5577 | 0.92 | 0.81 | 0.50 | — | — | 703.8 | Q1-Q8 KOI Table | TICv8 |
| 5403 | — | 0.79 | — | — | — | 703.8 | Q1-Q6 KOI Table | TICv8 |
| 5538 | 0.93 | 1.03 | — | — | — | 703.8 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5403 | — | 0.79 | — | — | — | 703.8 | Batalha et al. 2013 | TICv8 |
| 5601 | 0.91 | 0.83 | — | — | — | 703.8 | Q1-Q16 KOI Table | TICv8 |
| 5359 | — | 0.91 | — | -0.21 | — | 703.8 | Gaia DR2 | TICv8 |
| 5601 | 0.91 | 0.83 | — | — | — | 703.8 | Q1-Q12 KOI Table | TICv8 |
| 5674 | 1.01 | 0.85 | — | -0.17 | — | 703.8 | TICv8 | TICv8 |
| 5601 | 0.91 | 0.83 | — | — | — | 703.8 | Q1-Q17 DR24 KOI Table | TICv8 |
| — | — | — | — | — | — | 703.8 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |