Temperature
4865 K
4656 to 4872
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Stellar HostProfile
Kepler-1446
Unclassified star โข 152.1 pc
Records
11
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 159050852
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 โข System source: TICv8
Mass
0.81 Msun
0.77 to 0.97
Radius
0.75 Rsun
0.68 to 1.75
Age
2.63 Gyr
1.78 to 2.63
Distance
152.1 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.75 Rโ (circles scaled linearly by radius)
Sun
1.0 Rโ baseline
Kepler-1446
0.75 Rโ
System Layout
Known planets
1 planets linked to this host
Kepler-1446 b
Transit
โ
Discovery
2016
Period
0.69 days
Radius
0.82 Rโ
Mass
โ
Eq. Temp
โ
Kepler-1446 and Its Sub-Earth Planet
Kepler-1446 is a star 496 light-years away with a mass of 0.81 solar masses and a radius of 0.75 solar radii, both smaller than the Sun's. Its temperature of 4870 K is cooler than the Sun's, and it is 2.63 billion years old. One planet orbits this host.
That planet, Kepler-1446 b, is a Sub-Earth, a size class for planets smaller than Earth. Its radius is 0.82 Earth radii, smaller than Earth's, and it completes an orbit every 0.69 days. It 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.
Provenance
Underlying measurements and references
Evidence Summary
Rows
11
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 |
|---|---|---|---|---|---|---|---|---|
| 4848 | โ | 0.70 | โ | โ | โ | 152.1 | Berger et al. 2018 | TICv8 |
| 4789.7 | 0.77 | 0.69 | โ | -0.65 | โ | 152.1 | TICv8 | TICv8 |
| 4784.3 | โ | 0.68 | โ | -0.66 | โ | 152.1 | Gaia DR2 | TICv8 |
| 4854 | 0.97 | 1.75 | โ | โ | โ | 152.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| โ | โ | โ | โ | โ | โ | 152.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4656 | โ | 1.51 | โ | โ | โ | 152.1 | Latham et al. 2005 | TICv8 |
| 4865 | 0.81 | 0.75 | 2.63 | โ | โ | 152.1 | Morton et al. 2016 | TICv8 |
| 4854 | 0.97 | 1.75 | โ | โ | โ | 152.1 | Q1-Q12 KOI Table | TICv8 |
| 4848 | 0.78 | 0.70 | 1.78 | โ | โ | 152.1 | Fulton & Petigura 2018 | TICv8 |
| 4854 | 0.97 | 1.75 | โ | โ | โ | 152.1 | Q1-Q16 KOI Table | TICv8 |
| 4872 | 0.81 | 0.73 | โ | โ | โ | 152.1 | Q1-Q17 DR25 KOI Table | TICv8 |