Temperature
5634 K
5334 to 5656
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Stellar HostProfile
Kepler-646
Unclassified star • 451.8 pc
Records
14
literature rows
Planets
1
system count
References
15
distinct source labels
TIC: TIC 159441621
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
0.93 Msun
0.75 to 1
Radius
0.91 Rsun
0.72 to 0.91
Age
4.57 Gyr
4.57 to 12.88
Distance
451.8 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.91 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-646
0.91 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-646 b
Transit
◌
Discovery
2016
Period
15.87 days
Radius
1.99 R⊕
Mass
—
Eq. Temp
—
Kepler-646 and Its Super-Earth
Kepler-646 is a star 1470 light-years away with one known planet. The star is estimated to be 4.57 billion years old, with a mass of 0.93 solar masses and a radius of 0.91 solar radii. Its reported temperature is 5630 K, cooler than the Sun's, and its reported mass estimate is smaller than the Sun's.
The planet Kepler-646 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 the planet's orbital period, the time it takes to complete one orbit.
Kepler-646 b is classified as a Super-Earth, a size class that reaches 2.5 times Earth's radius. Its radius is 1.99 Earth radii, larger than Earth's, and it orbits once every 15.9 days.
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 |
|---|---|---|---|---|---|---|---|---|
| 5438 | 1 | 0.83 | — | — | — | 451.8 | Q1-Q8 KOI Table | TICv8 |
| 5334 | — | 0.83 | — | — | — | 451.8 | Berger et al. 2018 | TICv8 |
| 5634 | 0.93 | 0.91 | 4.57 | — | — | 451.8 | Morton et al. 2016 | TICv8 |
| 5438 | — | 0.72 | — | — | — | 451.8 | Q1-Q6 KOI Table | TICv8 |
| 5334 | 0.75 | 0.82 | 12.88 | — | — | 451.8 | Fulton & Petigura 2018 | TICv8 |
| 5654 | 0.80 | 0.74 | — | — | — | 451.8 | Q1-Q16 KOI Table | TICv8 |
| 5654 | 0.80 | 0.74 | — | — | — | 451.8 | Q1-Q12 KOI Table | TICv8 |
| 5438 | — | 0.83 | — | — | — | 451.8 | Latham et al. 2005 | TICv8 |
| 5400 | — | 0.81 | — | -0.30 | — | 451.8 | Gaia DR2 | TICv8 |
| 5429.4 | 0.95 | 0.84 | — | -0.26 | — | 451.8 | TICv8 | TICv8 |
| 5656 | 0.80 | 0.74 | — | — | — | 451.8 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5438 | — | 0.72 | — | — | — | 451.8 | Batalha et al. 2013 | TICv8 |
| — | — | — | — | — | — | 451.8 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5654 | 0.80 | 0.74 | — | — | — | 451.8 | Q1-Q17 DR24 KOI Table | TICv8 |