Temperature
5817 K
5391.5 to 5817
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Stellar HostProfile
K2-193
Unclassified star • 411.9 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
TIC: TIC 741596
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: Livingston et al. 2018 • System source: TICv8
Mass
1.01 Msun
0.98 to 1.01
Radius
0.98 Rsun
0.83 to 1.01
Distance
411.9 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.98 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-193
0.98 R☉
System Layout
Known planets
1 planets linked to this host
K2-193 b
Transit
◌
Discovery
2018
Period
14.79 days
Radius
3.95 R⊕
Mass
—
Eq. Temp
739 K
K2-193 b: A Neptune-Like World in a Distant System
K2-193 is a star located 1340 light-years from Earth. It has a mass of 1.01 solar masses, a radius of 0.98 solar radii, and a temperature of 5820 K. One known planet orbits this star.
That planet is K2-193 b, a Neptune-like world discovered in 2018 by the transit method, which detects the small dip in a star's brightness when a planet passes in front of it. K2-193 b completes an orbit every 14.8 days and has a radius of 3.95 Earth radii, a size estimate larger than Earth's. In the size classification used for planets, a Neptune-like radius reaches up to 4 times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 5817 | 1.01 | 0.98 | — | — | — | 411.9 | Livingston et al. 2018 | TICv8 |
| — | — | — | — | — | — | 411.9 | Pope et al. 2016 | TICv8 |
| 5623 | 0.99 | 0.96 | — | — | — | 411.9 | Mayo et al. 2018 | TICv8 |
| 5391.5 | — | 1.01 | — | -0.11 | — | 411.9 | Gaia DR2 | TICv8 |
| — | — | 1.01 | — | — | — | 411.9 | Kruse et al. 2019 | TICv8 |
| 5576 | 0.98 | 0.98 | — | -0.08 | — | 411.9 | TICv8 | TICv8 |
| — | — | 0.83 | — | — | — | 411.9 | Petigura et al. 2018 | TICv8 |