Temperature
4140 K
4072 to 4258.3
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Stellar HostProfile
K2-284
Unclassified star • 107.3 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 5882269
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: David et al. 2018 • System source: TICv8
Mass
0.63 Msun
0.63 to 0.64
Radius
0.61 Rsun
0.61 to 0.65
Age
0.12 Gyr
single adopted value
Luminosity
-1.01 log(Lsun)
-1.01 to -0.98
Distance
107.3 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.61 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-284
0.61 R☉
System Layout
Known planets
1 planets linked to this host
K2-284 b
Transit
◌
Discovery
2018
Period
4.80 days
Radius
2.78 R⊕
Mass
—
Eq. Temp
653 K
K2-284 b: A Neptune-Like World Orbiting a Small Star
K2-284 is a star located 350 light-years from Earth. It has one known planet, K2-284 b, which was discovered by the transit method in 2018. A transit occurs when a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness; repeated dips help establish orbital periods.
The host star K2-284 has a mass of 0.63 solar masses, a radius of 0.607 solar radii, and a temperature of 4140 K. Its reported mass estimate is smaller than the Sun's, its reported radius estimate is also smaller, and its temperature is cooler than the Sun's. The star's age is 0.12 billion years.
K2-284 b is classified as Neptune-like. It orbits its star every 4.8 days and has a radius of 2.78 Earth radii, larger than Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 4140 | 0.63 | 0.61 | 0.12 | -1.01 | — | 107.3 | David et al. 2018 | TICv8 |
| 4258.3 | — | 0.65 | — | — | — | 107.3 | Lafarga et al. 2026 | TICv8 |
| 4072 | 0.64 | 0.65 | — | -0.98 | — | 107.3 | TICv8 | TICv8 |
| 4072 | — | 0.65 | — | — | — | 107.3 | ExoFOP | TICv8 |
| 4089.6 | — | 0.62 | — | -1.01 | — | 107.3 | Gaia DR2 | TICv8 |