Temperature
5781 K
5490.0 to 5826
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Stellar HostProfile
Kepler-17
G2 V • 720.8 pc
Records
20
literature rows
Planets
1
system count
References
21
distinct source labels
TIC: TIC 273874849
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: Bonomo et al. 2011 • System source: TICv8
Mass
1.16 Msun
1.02 to 1.16
Radius
1.05 Rsun
0.94 to 1.06
Age
1.78 Gyr
0.98 to 3.72
Distance
720.8 pc
single adopted value
Spectral Type
G2 V
Consistent across records
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.05 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-17
1.05 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-17 b
Transit
◌
Discovery
2011
Period
1.49 days
Radius
14.68 R⊕
Mass
778.6 M⊕
Eq. Temp
1570 K
Kepler-17: A Sun-Like Star and Its Close-Orbiting Giant
Kepler-17 is a G2 V star, a Sun-like main-sequence dwarf, located 2350 light-years away. It has one known planet. The star's reported mass estimate is 1.16 solar masses and its reported radius estimate is 1.05 solar radii, both larger than the Sun's. Its temperature is 5780 K, and its age is a reported upper limit of 1.78 billion years.
The planet Kepler-17 b was discovered by transit in 2011. It is a Jupiter-like planet, a size class for worlds whose radius exceeds four times Earth's. Its radius is 14.7 Earth radii, larger than Earth's. Its mass is 779 Earth masses, also larger than Earth's, and roughly 2.45 times Jupiter's mass. Its mean density is 1.36 g/cm³, 0.246 times Earth's. Kepler-17 b orbits with an orbital period of 1.49 days.
Provenance
Underlying measurements and references
Evidence Summary
Rows
20
Stellar refs
20
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 |
|---|---|---|---|---|---|---|---|---|
| 5787 | — | 1.05 | — | — | — | 720.8 | Q1-Q6 KOI Table | TICv8 |
| 5722 | 1.08 | 0.99 | 0.98 | — | — | 720.8 | Fulton & Petigura 2018 | TICv8 |
| 5781 | 1.04 | 1.01 | — | 0.01 | — | 720.8 | TICv8 | TICv8 |
| 5781 | 1.03 | 0.94 | — | — | — | 720.8 | Mortier et al. 2013 | TICv8 |
| 5680 | 1.03 | 1.01 | 3.72 | — | — | 720.8 | Morton et al. 2016 | TICv8 |
| 5787 | 1.12 | 1.05 | 1.03 | — | — | 720.8 | Q1-Q8 KOI Table | TICv8 |
| 5634 | — | 0.97 | — | — | — | 720.8 | Latham et al. 2005 | TICv8 |
| 5826 | — | — | — | — | — | 720.8 | KIC - SCPKEY | TICv8 |
| 5490.0 | — | 1.06 | — | -0.04 | — | 720.8 | Gaia DR2 | TICv8 |
| — | — | — | — | — | — | 720.8 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5781 | 1.16 | 1.05 | 1.80 | — | — | 720.8 | Bonomo et al. 2017 | TICv8 |
| 5781 | 1.16 | 1.05 | 1.78 | — | G2 V | 720.8 | Bonomo et al. 2011 | TICv8 |
| 5781 | 1.07 | 0.98 | 1.50 | — | — | 720.8 | Southworth 2012 | TICv8 |
| 5624 | 1.02 | 1.02 | — | — | — | 720.8 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5624 | 1.02 | 1.02 | — | — | — | 720.8 | Q1-Q12 KOI Table | TICv8 |
| 5781 | — | 1.01 | — | — | — | 720.8 | ExoFOP | TICv8 |
| 5624 | 1.02 | 1.02 | — | — | — | 720.8 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5722 | — | 1.01 | — | — | — | 720.8 | Berger et al. 2018 | TICv8 |
| 5624 | 1.02 | 1.02 | — | — | — | 720.8 | Q1-Q16 KOI Table | TICv8 |
| 5787 | — | 1.05 | — | — | — | 720.8 | Batalha et al. 2013 | TICv8 |