Temperature
4870 K
4560 to 4870
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Stellar HostProfile
Kepler-1039
Unclassified star • 306.9 pc
Records
14
literature rows
Planets
1
system count
References
15
distinct source labels
TIC: TIC 274020852
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
0.79 Msun
0.67 to 0.97
Radius
0.74 Rsun
0.60 to 2
Age
4.37 Gyr
1.45 to 13.70
Distance
306.9 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.74 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
Kepler-1039
0.74 R☉
System Layout
Known planets
1 planets linked to this host
Kepler-1039 b
Transit
◌
Discovery
2016
Period
0.93 days
Radius
1.46 R⊕
Mass
—
Eq. Temp
—
Kepler-1039 and Its Earth-like Planet
Kepler-1039 is a star located 1000 light-years away, and one planet orbits it. The star is 4.37 billion years old, with a mass of 0.79 solar masses and a radius of 0.74 solar radii, making it both less massive and smaller than the Sun. Its temperature of 4870 K is also cooler than the Sun's.
The known planet, Kepler-1039 b, was discovered in 2016 by the transit method, in which a planet passing in front of its star from our viewpoint causes a small dip in observed brightness. Repeated dips of this kind help establish a planet's orbital period. Kepler-1039 b completes one orbit in 0.935 days, and its radius of 1.46 Earth radii is larger than Earth's. That radius places it within the Earth-like size class, which covers planets up to 1.5 times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
14
Stellar refs
14
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 |
|---|---|---|---|---|---|---|---|---|
| 4777 | 0.95 | 1.79 | — | — | — | 306.9 | Q1-Q16 KOI Table | TICv8 |
| 4604 | — | 2 | — | — | — | 306.9 | Q1-Q6 KOI Table | TICv8 |
| 4777 | 0.95 | 1.79 | — | — | — | 306.9 | Q1-Q17 DR24 KOI Table | TICv8 |
| 4766 | 0.77 | 0.69 | 1.45 | — | — | 306.9 | Fulton & Petigura 2018 | TICv8 |
| 4560 | 0.72 | 0.76 | — | -0.65 | — | 306.9 | TICv8 | TICv8 |
| 4777 | 0.95 | 1.79 | — | — | — | 306.9 | Q1-Q17 DR25 KOI Table | TICv8 |
| 4775.7 | — | 0.64 | — | -0.72 | — | 306.9 | Gaia DR2 | TICv8 |
| 4766 | — | 0.70 | — | — | — | 306.9 | Berger et al. 2018 | TICv8 |
| 4604 | 0.97 | 2 | — | — | — | 306.9 | Batalha et al. 2013 | TICv8 |
| 4604 | — | 1.66 | — | — | — | 306.9 | Latham et al. 2005 | TICv8 |
| 4674 | 0.67 | 0.60 | 13.70 | — | — | 306.9 | Q1-Q8 KOI Table | TICv8 |
| 4777 | 0.95 | 1.79 | — | — | — | 306.9 | Q1-Q12 KOI Table | TICv8 |
| 4870 | 0.79 | 0.74 | 4.37 | — | — | 306.9 | Morton et al. 2016 | TICv8 |
| — | — | — | — | — | — | 306.9 | Q1-Q17 DR25 Supplemental KOI Table | TICv8 |