Temperature
5170 K
4997 to 5170
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Stellar HostProfile
Kepler-1728
Unclassified star • 651.8 pc
Records
10
literature rows
Planets
1
system count
References
11
distinct source labels
TIC: TIC 121085785
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: Q1-Q12 KOI Table • System source: TICv8
Mass
0.89 Msun
0.75 to 0.89
Radius
0.81 Rsun
0.74 to 0.82
Distance
651.8 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.81 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-1728
0.81 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1728 b
Transit
◌
Discovery
2021
Period
4.78 days
Radius
2.96 R⊕
Mass
—
Eq. Temp
—
Kepler-1728 and Its Neptune-Like Planet
Kepler-1728 is a star located 2130 light-years away. It has 0.891 solar masses, 0.807 solar radii, and a temperature of 5170 K. Its reported mass estimate is smaller than the Sun's, and its reported radius estimate is smaller than the Sun's. Its reported temperature is also cooler than the Sun's. One planet orbits this host.
That planet is Kepler-1728 b, a Neptune-like world discovered by transit in 2021. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness. Kepler-1728 b has an orbital period of 4.78 days and a radius of 2.96 Earth radii, larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
10
Stellar refs
10
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositystable
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4997 | — | 0.82 | — | — | — | 651.8 | Latham et al. 2005 | TICv8 |
| 5170 | 0.89 | 0.81 | — | — | — | 651.8 | Q1-Q16 KOI Table | TICv8 |
| 4997 | — | 0.79 | — | — | — | 651.8 | Q1-Q6 KOI Table | TICv8 |
| 5073 | 0.75 | 0.74 | 12.80 | — | — | 651.8 | Q1-Q8 KOI Table | TICv8 |
| 5170 | 0.89 | 0.81 | — | — | — | 651.8 | Q1-Q17 DR25 KOI Table | TICv8 |
| 5170 | 0.89 | 0.81 | — | — | — | 651.8 | Q1-Q17 DR24 KOI Table | TICv8 |
| 5170 | 0.89 | 0.81 | — | — | — | 651.8 | Q1-Q12 KOI Table | TICv8 |
| — | — | — | — | — | — | 651.8 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |
| 4997 | — | 0.79 | — | — | — | 651.8 | Batalha et al. 2013 | TICv8 |
| 5021 | 0.83 | 0.82 | — | -0.42 | — | 651.8 | TICv8 | TICv8 |