Temperature
5042 K
4853.3 to 5089
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Stellar HostProfile
Kepler-1521
Unclassified star • 207.0 pc
Records
11
literature rows
Planets
1
system count
References
12
distinct source labels
TIC: TIC 137817355
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
0.81 Msun
0.75 to 1.03
Radius
0.76 Rsun
0.69 to 2.03
Age
4.47 Gyr
1.15 to 4.47
Distance
207.0 pc
single adopted value
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-1521
0.76 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1521 b
Transit
◌
Discovery
2016
Period
47.15 days
Radius
2.50 R⊕
Mass
—
Eq. Temp
—
Kepler-1521 and Its Neptune-Like Planet
Kepler-1521 is a star located 675 light-years away, and it hosts one known planet. The star is estimated to be 4.47 billion years old, with a mass of 0.81 solar masses, a radius of 0.76 solar radii, and a temperature of 5040 K. Its reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.
The planet Kepler-1521 b was discovered in 2016 by the transit method, which detects the small dip in a star's observed brightness when a planet passes in front of it from our viewpoint. Repeated dips help establish the planet's orbital period. Kepler-1521 b completes one orbit every 47.1 days. It is classified as Neptune-like, a size class that reaches 4 times Earth's radius, and its radius is 2.5 Earth radii, larger than Earth's.
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 |
|---|---|---|---|---|---|---|---|---|
| 4981.1 | 0.82 | 0.70 | — | -0.57 | — | 207.0 | TICv8 | TICv8 |
| 5089 | 1.03 | 1.95 | — | — | — | 207.0 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4901 | — | 2.03 | — | — | — | 207.0 | Latham et al. 2005 | TICv8 |
| 5089 | 1.03 | 1.95 | — | — | — | 207.0 | Q1-Q16 KOI Table | TICv8 |
| — | — | — | — | — | — | 207.0 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5013 | — | 0.70 | — | — | — | 207.0 | Berger et al. 2018 | TICv8 |
| 5089 | 1.03 | 1.95 | — | — | — | 207.0 | Q1-Q12 KOI Table | TICv8 |
| 5042 | 0.81 | 0.76 | 4.47 | — | — | 207.0 | Morton et al. 2016 | TICv8 |
| 4975 | 0.75 | 0.73 | — | — | — | 207.0 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5013 | 0.78 | 0.69 | 1.15 | — | — | 207.0 | Fulton & Petigura 2018 | TICv8 |
| 4853.3 | — | 0.73 | — | -0.57 | — | 207.0 | Gaia DR2 | TICv8 |