Temperature
5270 K
5094 to 5309
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Stellar HostProfile
Kepler-390
Unclassified star • 435.3 pc
Records
20
literature rows
Planets
2
system count
References
16
distinct source labels
TIC: TIC 137340986
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
0.86 Msun
0.67 to 0.88
Radius
0.80 Rsun
0.66 to 0.83
Age
3.24 Gyr
1.60 to 10.96
Distance
435.3 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.80 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-390
0.80 R☉
System Layout
Known planets
2 planets linked to this host
Kepler-390 b
Transit
◌
Discovery
2014
Period
6.74 days
Radius
0.82 R⊕
Mass
—
Eq. Temp
—
Kepler-390 c
Transit
◌
Discovery
2014
Period
13.06 days
Radius
0.79 R⊕
Mass
—
Eq. Temp
—
Planets of Kepler-390
Kepler-390 is a star located 1420 light-years away, with two planets found to orbit it. The host star is 3.24 billion years old, with a mass of 0.86 solar masses and a radius of 0.8 solar radii. Its temperature is 5270 K, and both its mass and radius estimates are smaller than the Sun's, with a temperature cooler than the Sun's.
Both planets were discovered in 2014 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. The two worlds are Kepler-390 b and Kepler-390 c, and both are classified as Sub-Earths, meaning their radii are smaller than Earth's.
Kepler-390 b has a radius of 0.82 Earth radii and an orbital period of 6.74 days, the shortest year among the listed planets. Kepler-390 c has a radius of 0.79 Earth radii and an orbital period of 13.1 days, the longest year among the listed planets. Kepler-390 c also has the smallest radius among the listed planets, while Kepler-390 b has the largest.
Provenance
Underlying measurements and references
Evidence Summary
Rows
20
Stellar refs
15
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 |
|---|---|---|---|---|---|---|---|---|
| 5174.9 | 0.88 | 0.83 | — | -0.35 | — | 435.3 | TICv8 | TICv8 |
| 5168 | 0.79 | 0.77 | — | — | — | 435.3 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5166 | — | 0.78 | — | — | — | 435.3 | Rowe et al. 2014 | TICv8 |
| 5168 | 0.79 | 0.77 | — | — | — | 435.3 | Q1-Q16 KOI Table | TICv8 |
| 5110.6 | — | 0.83 | — | -0.38 | — | 435.3 | Gaia DR2 | TICv8 |
| 5128 | — | 0.82 | — | — | — | 435.3 | Berger et al. 2018 | TICv8 |
| — | — | — | — | — | — | 435.3 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5168 | 0.79 | 0.77 | — | — | — | 435.3 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5168 | 0.79 | 0.77 | — | — | — | 435.3 | Q1-Q16 KOI Table | TICv8 |
| 5168 | 0.79 | 0.77 | — | — | — | 435.3 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5168 | 0.79 | 0.77 | — | — | — | 435.3 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5094 | 0.67 | 0.66 | — | — | — | 435.3 | Batalha et al. 2013 | TICv8 |
| — | — | — | — | — | — | 435.3 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5094 | — | 0.66 | — | — | — | 435.3 | Q1-Q6 KOI Table | TICv8 |
| 5168 | 0.79 | 0.77 | — | — | — | 435.3 | Q1-Q12 KOI Table | TICv8 |
| 5270 | 0.86 | 0.80 | 3.24 | — | — | 435.3 | Morton et al. 2016 | TICv8 |
| 5309 | 0.84 | 0.75 | 1.60 | — | — | 435.3 | Q1-Q8 KOI Table | TICv8 |
| 5128 | 0.79 | 0.81 | 10.96 | — | — | 435.3 | Fulton & Petigura 2018 | TICv8 |
| 5168 | 0.79 | 0.77 | — | — | — | 435.3 | Q1-Q12 KOI Table | TICv8 |
| 5094 | — | 0.78 | — | — | — | 435.3 | Latham et al. 2005 | TICv8 |