Temperature
3299 K
3227 to 3718.6
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Stellar HostProfile
Kepler-1646
Unclassified star • 127.6 pc
Records
8
literature rows
Planets
1
system count
References
9
distinct source labels
TIC: TIC 158552258
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
0.24 Msun
0.17 to 0.36
Radius
0.26 Rsun
0.19 to 1.14
Age
4.68 Gyr
single adopted value
Distance
127.6 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.26 R☉ • circles scaled linearly by radius
Sun
1.0 R☉ baseline
Kepler-1646
0.26 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1646 b
Transit
◌
Discovery
2016
Period
4.49 days
Radius
1.23 R⊕
Mass
—
Eq. Temp
—
Kepler-1646 and Its Earth-Like Planet
Kepler-1646 is a star located 416 light-years away, and it hosts one known planet. The star is 4.68 billion years old, with a mass of 0.24 solar masses and a radius of 0.26 solar radii, making it smaller than the Sun in both mass and radius. Its temperature of 3300 K is cooler than the Sun's.
The planet, Kepler-1646 b, was discovered in 2016 by the transit method, in which a planet passing in front of its star from our viewpoint causes a small dip in observed brightness. Repeated dips help establish orbital periods. Kepler-1646 b completes one orbit every 4.49 days and has a radius of 1.23 Earth radii. That radius keeps it within 1.5 times Earth's radius, so it is classified as Earth-like.
Provenance
Underlying measurements and references
Evidence Summary
Rows
8
Stellar refs
8
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositystable
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3718.6 | — | — | — | — | — | 127.6 | Gaia DR2 | TICv8 |
| 3391 | 0.36 | 0.37 | — | -1.78 | — | 127.6 | TICv8 | TICv8 |
| 3537 | — | 1.14 | — | — | — | 127.6 | Latham et al. 2005 | TICv8 |
| 3236 | 0.17 | 0.19 | — | — | — | 127.6 | Q1-Q17 DR25 KOI Table | TICv8 |
| 3227 | 0.18 | 0.20 | — | — | — | 127.6 | Q1-Q17 DR24 KOI Table | TICv8 |
| 3299 | 0.24 | 0.26 | 4.68 | — | — | 127.6 | Morton et al. 2016 | TICv8 |
| 3227 | — | 0.37 | — | — | — | 127.6 | Berger et al. 2018 | TICv8 |
| — | — | — | — | — | — | 127.6 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |