Temperature
4521 K
3939 to 4521
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Stellar HostProfile
Kepler-621
Unclassified star
Records
18
literature rows
Planets
1
system count
References
13
distinct source labels
TIC: TIC 122706051
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
0.72 Msun
0.57 to 0.72
Radius
0.68 Rsun
0.51 to 0.68
Age
3.63 Gyr
1.30 to 3.63
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.68 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-621
0.68 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-621 b
Transit
◌
Discovery
2016
Period
2.63 days
Radius
2.30 R⊕
Mass
—
Eq. Temp
—
Kepler-621 b: A Super-Earth in a Two-Day Orbit
Kepler-621 is a single star with one known planet, Kepler-621 b. The star's reported mass estimate is 0.72 solar masses, smaller than the Sun's, and its reported radius estimate is 0.68 solar radii, also smaller than the Sun's. Its temperature is 4520 K, cooler than the Sun's, and its age is 3.63 billion years.
Kepler-621 b is classified as a Super-Earth, a size class that reaches 2.5 times Earth's radius. Its radius is 2.3 Earth radii, larger than Earth's. The planet was discovered by transit, the 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-621 b completes one orbit in 2.63 days, and its radius of 2.3 Earth radii sits within the Super-Earth class.
Provenance
Underlying measurements and references
Evidence Summary
Rows
18
Stellar refs
12
System refs
1
Temperaturedisputed
Massdisputed
Radiusdisputed
Agedisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3941 | 0.58 | 0.56 | — | — | — | — | Q1-Q16 KOI Table | TICv8 |
| 4270 | — | 0.53 | — | — | — | — | Latham et al. 2005 | TICv8 |
| 3941 | 0.58 | 0.56 | — | — | — | — | Q1-Q16 KOI Table | TICv8 |
| 3941 | 0.58 | 0.56 | — | — | — | — | Q1-Q12 KOI Table | TICv8 |
| 4410.7 | — | — | — | — | — | — | Gaia DR2 | TICv8 |
| 4244.1 | — | — | — | — | — | — | TICv8 | TICv8 |
| 4444 | 0.64 | 0.57 | 1.30 | — | — | — | Q1-Q8 KOI Table | TICv8 |
| 4444 | 0.64 | 0.57 | 1.30 | — | — | — | Q1-Q8 KOI Table | TICv8 |
| 4521 | 0.72 | 0.68 | 3.63 | — | — | — | Morton et al. 2016 | TICv8 |
| 3941 | 0.58 | 0.56 | — | — | — | — | Q1-Q12 KOI Table | TICv8 |
| 3941 | 0.58 | 0.56 | — | — | — | — | Q1-Q17 DR24 KOI Table | TICv8 |
| 3941 | 0.58 | 0.56 | — | — | — | — | Q1-Q17 DR24 KOI Table | TICv8 |
| 3939 | 0.57 | 0.56 | — | — | — | — | Q1-Q17 DR25 KOI Table | TICv8 |
| 4270 | — | 0.51 | — | — | — | — | Batalha et al. 2013 | TICv8 |
| — | — | — | — | — | — | — | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 3939 | 0.57 | 0.56 | — | — | — | — | Q1-Q17 DR25 KOI Table | TICv8 |
| 4270 | — | 0.51 | — | — | — | — | Q1-Q6 KOI Table | TICv8 |
| — | — | — | — | — | — | — | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |