Temperature
5624 K
5376.2 to 5854
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Stellar HostProfile
Kepler-227
Unclassified star • 1083.1 pc
Records
22
literature rows
Planets
2
system count
References
16
distinct source labels
TIC: TIC 26539443
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
0.96 Msun
0.92 to 1.05
Radius
0.94 Rsun
0.93 to 1.09
Age
4.57 Gyr
3.98 to 7.70
Distance
1083.1 pc
single adopted value
Planets
2
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.94 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-227
0.94 R☉
System Layout
Known planets
2 planets linked to this host
Kepler-227 b
Transit
◌
Discovery
2014
Period
9.49 days
Radius
3.11 R⊕
Mass
—
Eq. Temp
—
Kepler-227 c
Transit
◌
Discovery
2014
Period
54.42 days
Radius
3.04 R⊕
Mass
—
Eq. Temp
—
Kepler-227: A Distant Star With Two Neptune-Like Worlds
Kepler-227 is a star located 3530 light-years away. It is 4.57 billion years old, has a mass of 0.96 solar masses, a radius of 0.94 solar radii, and a temperature of 5620 K. Its reported temperature is cooler than the Sun's. Two planets are known to orbit this host.
Both planets were discovered by transit in 2014, the method in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. Kepler-227 b and Kepler-227 c are both Neptune-like, a size class that reaches 4 times Earth's radius. Kepler-227 b has an orbital period of 9.49 days and a radius of 3.11 Earth radii, larger than Earth's. Kepler-227 c has an orbital period of 54.4 days and a radius of 3.04 Earth radii, also larger than Earth's.
Among the listed planets, Kepler-227 b has the shortest year by reported estimates, at 9.49 days, and the largest radius, at 3.11 Earth radii. Kepler-227 c has the longest year by reported estimates, at 54.4 days, and the smallest radius, at 3.04 Earth radii.
Provenance
Underlying measurements and references
Evidence Summary
Rows
22
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 |
|---|---|---|---|---|---|---|---|---|
| 5524.6 | 0.97 | 0.95 | — | -0.12 | — | 1083.1 | TICv8 | TICv8 |
| 5850 | 1.05 | 1.04 | — | — | — | 1083.1 | Q1-Q12 KOI Table | TICv8 |
| 5624 | 0.96 | 0.94 | 4.57 | — | — | 1083.1 | Morton et al. 2016 | TICv8 |
| 5455 | 0.92 | 0.93 | — | — | — | 1083.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5584 | — | 1.03 | — | — | — | 1083.1 | Batalha et al. 2013 | TICv8 |
| 5854 | — | 1.09 | — | — | — | 1083.1 | Rowe et al. 2014 | TICv8 |
| 5584 | — | 1.03 | — | — | — | 1083.1 | Q1-Q6 KOI Table | TICv8 |
| 5850 | 1.05 | 1.04 | — | — | — | 1083.1 | Q1-Q16 KOI Table | TICv8 |
| 5376.2 | — | 0.98 | — | -0.15 | — | 1083.1 | Gaia DR2 | TICv8 |
| 5539 | 0.95 | 0.93 | 3.98 | — | — | 1083.1 | Fulton & Petigura 2018 | TICv8 |
| 5584 | — | 1.07 | — | — | — | 1083.1 | Latham et al. 2005 | TICv8 |
| 5763 | 0.92 | 0.99 | 7.70 | — | — | 1083.1 | Q1-Q8 KOI Table | TICv8 |
| 5763 | 0.92 | 0.99 | 7.70 | — | — | 1083.1 | Q1-Q8 KOI Table | TICv8 |
| 5455 | 0.92 | 0.93 | — | — | — | 1083.1 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5850 | 1.05 | 1.04 | — | — | — | 1083.1 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5850 | 1.05 | 1.04 | — | — | — | 1083.1 | Q1-Q12 KOI Table | TICv8 |
| 5584 | — | 1.03 | — | — | — | 1083.1 | Q1-Q6 KOI Table | TICv8 |
| — | — | — | — | — | — | 1083.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5539 | — | 0.95 | — | — | — | 1083.1 | Berger et al. 2018 | TICv8 |
| — | — | — | — | — | — | 1083.1 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 5850 | 1.05 | 1.04 | — | — | — | 1083.1 | Q1-Q16 KOI Table | TICv8 |
| 5850 | 1.05 | 1.04 | — | — | — | 1083.1 | Q1-Q17 DR24 KOI Table | TICv8 |