Temperature
6104 K
6027 to 6192
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Stellar HostProfile
Kepler-408
Unclassified star • 88.78 pc
Records
17
literature rows
Planets
1
system count
References
18
distinct source labels
TIC: TIC 48450369
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: Marcy et al. 2014 • System source: TICv8
Mass
1.08 Msun
1.01 to 1.14
Radius
1.23 Rsun
1.19 to 1.49
Age
6.68 Gyr
4 to 6.68
Distance
88.78 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.23 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-408
1.23 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-408 b
Transit
◌
Discovery
2014
Period
2.47 days
Radius
0.82 R⊕
Mass
5 M⊕
Eq. Temp
—
Kepler-408 and Its Sub-Earth Planet
Kepler-408 is a star 290 light-years from Earth with one known planet. The host star is 6.68 billion years old and has a reported mass estimate of 1.08 solar masses, which is larger than the Sun's. Its reported radius estimate is 1.23 solar radii, also larger than the Sun's, and its reported temperature of 6100 K is hotter than the Sun's.
The planet, Kepler-408 b, was 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. Repeated dips help establish orbital periods. Kepler-408 b completes an orbit every 2.47 days. It is classified as a Sub-Earth, a size class for planets smaller than Earth. Its reported radius estimate is 0.82 Earth radii, smaller than Earth's, and its mass is a reported upper limit of 5 Earth masses.
Provenance
Underlying measurements and references
Evidence Summary
Rows
17
Stellar refs
17
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 |
|---|---|---|---|---|---|---|---|---|
| 6192 | 1.09 | 1.23 | 4.27 | — | — | 88.78 | Morton et al. 2016 | TICv8 |
| — | 1.13 | 1.25 | 4 | — | — | 88.78 | Chaplin et al. 2014 | TICv8 |
| 6027 | — | 1.31 | — | — | — | 88.78 | Q1-Q6 KOI Table | TICv8 |
| 6139 | 1.02 | 1.19 | — | — | — | 88.78 | Q1-Q17 DR25 KOI Table | TICv8 |
| 6078 | 1.14 | 1.25 | — | 0.28 | — | 88.78 | TICv8 | TICv8 |
| 6027 | 1.05 | 1.31 | 6 | — | — | 88.78 | Q1-Q8 KOI Table | TICv8 |
| 6089 | — | 1.25 | — | — | — | 88.78 | Berger et al. 2018 | TICv8 |
| 6089 | 1.01 | 1.25 | 6.31 | — | — | 88.78 | Fulton & Petigura 2018 | TICv8 |
| 6104 | 1.08 | 1.23 | — | — | — | 88.78 | Q1-Q17 DR24 KOI Table | TICv8 |
| 6097 | — | 1.24 | — | 0.28 | — | 88.78 | Gaia DR2 | TICv8 |
| — | 1.01 | — | — | — | — | 88.78 | Weiss et al. 2024 | TICv8 |
| — | — | — | — | — | — | 88.78 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 6043 | — | 1.49 | — | — | — | 88.78 | Latham et al. 2005 | TICv8 |
| 6104 | 1.08 | 1.23 | 6.68 | — | — | 88.78 | Marcy et al. 2014 | TICv8 |
| 6104 | 1.08 | 1.23 | — | — | — | 88.78 | Q1-Q16 KOI Table | TICv8 |
| 6104 | 1.08 | 1.23 | — | — | — | 88.78 | Q1-Q12 KOI Table | TICv8 |
| 6027 | 1.05 | 1.31 | — | — | — | 88.78 | Batalha et al. 2013 | TICv8 |