Temperature
5264 K
4996.3 to 5343
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Stellar HostProfile
Kepler-663
Unclassified star • 1063.1 pc
Records
13
literature rows
Planets
1
system count
References
14
distinct source labels
TIC: TIC 273681023
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
0.80 to 0.93
Radius
0.82 Rsun
0.79 to 0.90
Age
4.57 Gyr
4.57 to 9.70
Distance
1063.1 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.82 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-663
0.82 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-663 b
Transit
◌
Discovery
2016
Period
5.00 days
Radius
2.60 R⊕
Mass
—
Eq. Temp
—
Kepler-663 and Its Neptune-Like Planet
Kepler-663 is a star 3470 light-years away with a mass of 0.86 solar masses, a radius of 0.82 solar radii, a temperature of 5260 K, and an age of 4.57 billion years. Its reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's. One planet orbits this host.
That planet, Kepler-663 b, is Neptune-like and was discovered by transit in 2016. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness; repeated dips help establish orbital periods. Kepler-663 b completes an orbit every 5 days and has a radius of 2.6 Earth radii, larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
13
Stellar refs
13
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 |
|---|---|---|---|---|---|---|---|---|
| 5339 | 0.93 | 0.85 | — | — | — | 1063.1 | Q1-Q12 KOI Table | TICv8 |
| 5174 | — | 0.86 | — | — | — | 1063.1 | Latham et al. 2005 | TICv8 |
| 5174 | — | 0.83 | — | — | — | 1063.1 | Batalha et al. 2013 | TICv8 |
| 5249 | 0.80 | 0.79 | 9.70 | — | — | 1063.1 | Q1-Q8 KOI Table | TICv8 |
| 5074 | 0.85 | 0.90 | — | -0.31 | — | 1063.1 | TICv8 | TICv8 |
| 5343 | — | 0.85 | — | — | — | 1063.1 | Berger et al. 2018 | TICv8 |
| 5339 | 0.93 | 0.85 | — | — | — | 1063.1 | Q1-Q16 KOI Table | TICv8 |
| 5339 | 0.93 | 0.85 | — | — | — | 1063.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4996.3 | — | 0.89 | — | -0.35 | — | 1063.1 | Gaia DR2 | TICv8 |
| 5264 | 0.86 | 0.82 | 4.57 | — | — | 1063.1 | Morton et al. 2016 | TICv8 |
| 5174 | — | 0.83 | — | — | — | 1063.1 | Q1-Q6 KOI Table | TICv8 |
| — | — | — | — | — | — | 1063.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5339 | 0.93 | 0.85 | — | — | — | 1063.1 | Q1-Q17 DR25 KOI Table | TICv8 |