Temperature
5308 K
5141 to 5310
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Stellar HostProfile
Kepler-421
G9/K0 • 348.6 pc
Records
12
literature rows
Planets
1
system count
References
13
distinct source labels
TIC: TIC 164522394
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: Kipping et al. 2014 • System source: TICv8
Mass
0.79 Msun
0.75 to 0.90
Radius
0.76 Rsun
0.76 to 0.83
Age
4 Gyr
4 to 12.30
Luminosity
-0.40 log(Lsun)
-0.40 to -0.34
Distance
348.6 pc
single adopted value
Spectral Type
G9/K0
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.76 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-421
0.76 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-421 b
Transit
◌
Discovery
2014
Period
704.2 days
Radius
4.16 R⊕
Mass
—
Eq. Temp
185 K
Kepler-421 b: A Jupiter-Like Planet in a Distant System
Kepler-421 is a star 1140 light-years away with a spectral type of G9/K0. Its reported mass estimate is 0.794 solar masses, its radius is 0.757 solar radii, and its temperature is 5310 K. The star is 4 billion years old. One planet orbits this host.
Kepler-421 b is a Jupiter-like planet discovered by the transit method in 2014. Its orbital period is 704 days. Its radius is 4.16 Earth radii, larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
12
Stellar refs
12
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typestable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | — | — | — | — | 348.6 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5308 | 0.79 | 0.76 | 4 | -0.40 | G9/K0 | 348.6 | Kipping et al. 2014 | TICv8 |
| 5141 | — | 0.82 | — | — | — | 348.6 | Latham et al. 2005 | TICv8 |
| 5224 | 0.78 | 0.83 | 12.30 | — | — | 348.6 | Fulton & Petigura 2018 | TICv8 |
| 5179.2 | — | 0.83 | — | -0.35 | — | 348.6 | Gaia DR2 | TICv8 |
| 5305 | 0.75 | 0.82 | — | — | — | 348.6 | Q1-Q16 KOI Table | TICv8 |
| 5305 | 0.75 | 0.82 | — | — | — | 348.6 | Q1-Q12 KOI Table | TICv8 |
| 5310 | 0.80 | 0.79 | — | — | — | 348.6 | Batalha et al. 2013 | TICv8 |
| 5310 | — | 0.79 | — | — | — | 348.6 | Q1-Q6 KOI Table | TICv8 |
| 5265.3 | 0.90 | 0.81 | — | -0.34 | — | 348.6 | TICv8 | TICv8 |
| 5224 | — | 0.83 | — | — | — | 348.6 | Berger et al. 2018 | TICv8 |
| 5310 | 0.80 | 0.79 | 9.30 | — | — | 348.6 | Q1-Q8 KOI Table | TICv8 |