Temperature
4896.9 K
4810 to 5054
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Stellar HostProfile
K2-47
Unclassified star • 349.9 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 301603728
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: TICv8 • System source: TICv8
Mass
0.80 Msun
0.75 to 0.80
Radius
0.82 Rsun
0.73 to 0.82
Luminosity
-0.46 log(Lsun)
-0.48 to -0.46
Distance
349.9 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.82 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-47
0.82 R☉
System Layout
Known planets
1 planets linked to this host
K2-47 b
Transit
◌
Discovery
2016
Period
31.64 days
Radius
1.89 R⊕
Mass
—
Eq. Temp
—
K2-47 b: A Super-Earth in a Distant System
K2-47 is a star 1140 light-years away with a mass of 0.8 solar masses, a radius of 0.821 solar radii, and a temperature of 4900 K. Its reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's. One planet is known to orbit this host.
That planet is K2-47 b, a Super-Earth discovered by transit in 2016. It completes an orbit every 31.6 days and has a radius of 1.89 Earth radii, which is larger than Earth's. In this size class, a Super-Earth reaches 2.5 times Earth's radius. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4810 | — | 0.73 | — | — | — | 349.9 | Vanderburg et al. 2016 | TICv8 |
| 4971 | — | 0.77 | — | -0.48 | — | 349.9 | Gaia DR2 | TICv8 |
| — | — | 0.77 | — | — | — | 349.9 | Kruse et al. 2019 | TICv8 |
| 5054 | 0.75 | 0.76 | — | — | — | 349.9 | Crossfield et al. 2016 | TICv8 |
| 4896.9 | 0.80 | 0.82 | — | -0.46 | — | 349.9 | TICv8 | TICv8 |