Temperature
5653 K
5428.5 to 5749
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Stellar HostProfile
Kepler-640
Unclassified star • 557.8 pc
Records
14
literature rows
Planets
1
system count
References
15
distinct source labels
TIC: TIC 272180958
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
1.01 Msun
0.99 to 1.10
Radius
0.94 Rsun
0.85 to 1.04
Age
2.09 Gyr
2.09 to 4.17
Distance
557.8 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.94 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-640
0.94 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-640 b
Transit
◌
Discovery
2016
Period
22.25 days
Radius
2.56 R⊕
Mass
—
Eq. Temp
—
Kepler-640 and Its Neptune-Like Planet
Kepler-640 is a star located 1820 light-years away. It is 2.09 billion years old and has 1.01 solar masses, 0.94 solar radii, and a temperature of 5650 K. Its radius estimate is smaller than the Sun's, and its temperature is cooler than the Sun's. One planet orbits this host.
Kepler-640 b is a Neptune-like planet discovered by transit in 2016. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. The planet completes an orbit every 22.2 days and has a radius of 2.56 Earth radii, larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
14
Stellar refs
14
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 |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 557.8 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5749 | 1.10 | 0.99 | — | — | — | 557.8 | Q1-Q12 KOI Table | TICv8 |
| 5581.5 | 0.99 | 1.04 | — | -0.02 | — | 557.8 | TICv8 | TICv8 |
| 5749 | 1.10 | 0.99 | — | — | — | 557.8 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5706 | 1.07 | 1.02 | 2.20 | — | — | 557.8 | Q1-Q8 KOI Table | TICv8 |
| 5428.5 | — | 1.03 | — | -0.08 | — | 557.8 | Gaia DR2 | TICv8 |
| 5706 | — | 1.02 | — | — | — | 557.8 | Q1-Q6 KOI Table | TICv8 |
| 5629 | 1.03 | 0.94 | — | — | — | 557.8 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5706 | — | 1.02 | — | — | — | 557.8 | Batalha et al. 2013 | TICv8 |
| 5653 | 1.01 | 0.94 | 2.09 | — | — | 557.8 | Morton et al. 2016 | TICv8 |
| 5600 | — | 0.99 | — | — | — | 557.8 | Berger et al. 2018 | TICv8 |
| 5600 | 0.99 | 0.98 | 4.17 | — | — | 557.8 | Fulton & Petigura 2018 | TICv8 |
| 5749 | 1.10 | 0.99 | — | — | — | 557.8 | Q1-Q16 KOI Table | TICv8 |
| 5553 | — | 0.85 | — | — | — | 557.8 | Latham et al. 2005 | TICv8 |