Temperature
5525 K
5381 to 5595
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Stellar HostProfile
KOI-217
Unclassified star • 914.7 pc
Records
15
literature rows
Planets
1
system count
References
16
distinct source labels
TIC: TIC 271354351
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
0.97 Msun
0.92 to 1.00
Radius
0.88 Rsun
0.71 to 0.95
Age
1.70 Gyr
0.40 to 1.70
Distance
914.7 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.88 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
KOI-217
0.88 R☉
System Layout
Known planets
1 planets linked to this host
KOI-217 b
Transit
◌
Discovery
2010
Period
3.91 days
Radius
12.44 R⊕
Mass
—
Eq. Temp
—
KOI-217 b: A Jupiter-like World
KOI-217 is a star located 2980 light-years away. It is 1.7 billion years old and has a mass of 0.97 solar masses, a radius of 0.88 solar radii, and a temperature of 5530 K. Its mass and radius are smaller than the Sun's, and its temperature is cooler than the Sun's. One planet orbits this star.
That planet, KOI-217 b, was discovered by transit in 2010. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. KOI-217 b has an orbital period of 3.91 days, the time it takes to complete one orbit. Its radius is 12.4 Earth radii, larger than Earth's, and this places it in the Jupiter-like size class, which covers planets exceeding 4 times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
15
Stellar refs
15
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 |
|---|---|---|---|---|---|---|---|---|
| 5543 | 1.00 | 0.89 | — | — | — | 914.7 | Q1-Q12 KOI Table | TICv8 |
| 5543 | 1.00 | 0.89 | — | — | — | 914.7 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5504 | — | 0.90 | — | — | — | 914.7 | Q1-Q6 KOI Table | TICv8 |
| 5381 | — | 0.95 | — | — | — | 914.7 | ExoFOP | TICv8 |
| 5504 | — | 0.71 | — | — | — | 914.7 | Latham et al. 2005 | TICv8 |
| 5401.8 | — | 0.90 | — | -0.21 | — | 914.7 | Gaia DR2 | TICv8 |
| 5504 | — | 0.90 | — | — | — | 914.7 | Batalha et al. 2013 | TICv8 |
| — | — | — | — | — | — | 914.7 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5381 | 0.93 | 0.95 | — | -0.17 | — | 914.7 | TICv8 | TICv8 |
| 5543 | 1.00 | 0.89 | — | — | — | 914.7 | Q1-Q16 KOI Table | TICv8 |
| 5545 | — | 0.87 | — | — | — | 914.7 | Berger et al. 2018 | TICv8 |
| 5595 | 0.92 | 0.82 | 0.40 | — | — | 914.7 | Q1-Q8 KOI Table | TICv8 |
| 5525 | 0.97 | 0.88 | 1.70 | — | — | 914.7 | Morton et al. 2016 | TICv8 |
| 5543 | 1.00 | 0.89 | — | — | — | 914.7 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5545 | 0.95 | 0.86 | — | — | — | 914.7 | Howell et al. 2010 | TICv8 |