Temperature
4377 K
4103 to 4415.5
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Stellar HostProfile
K2-45
Unclassified star • 495.3 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
TIC: TIC 38087018
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
0.68 Msun
0.50 to 0.68
Radius
0.77 Rsun
0.45 to 0.77
Luminosity
-0.71 log(Lsun)
-0.74 to -0.71
Distance
495.3 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.77 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-45
0.77 R☉
System Layout
Known planets
1 planets linked to this host
K2-45 b
Transit
◌
Discovery
2016
Period
1.73 days
Radius
6.71 R⊕
Mass
—
Eq. Temp
—
K2-45 b: A Close-Orbiting Giant in a Distant System
K2-45 is a single-star system 1620 light-years away, and its one known planet orbits the star directly. The host star has 0.68 solar masses, a radius of 0.766 solar radii, and a temperature of 4380 K, meaning it is less massive, smaller, and cooler than the Sun.
The only cataloged planet is K2-45 b, a Jupiter-like world detected by transit in 2016. Its radius is 6.71 Earth radii, larger than Earth's, while its orbital period is 1.73 days. The combination of a Jupiter-like radius and a period of just 1.73 days places this planet very close to its host.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| — | — | 0.73 | — | — | — | 495.3 | Kruse et al. 2019 | TICv8 |
| 4103 | 0.50 | 0.45 | — | — | — | 495.3 | Crossfield et al. 2016 | TICv8 |
| 4377 | 0.68 | 0.77 | — | -0.71 | — | 495.3 | TICv8 | TICv8 |
| 4415.5 | — | 0.73 | — | -0.74 | — | 495.3 | Gaia DR2 | TICv8 |
| 4271 | — | 0.66 | — | — | — | 495.3 | Vanderburg et al. 2016 | TICv8 |
| 4377 | — | 0.77 | — | — | — | 495.3 | ExoFOP | TICv8 |
| 4262.1 | 0.68 | 0.69 | — | — | — | 495.3 | Dressing et al. 2017 | TICv8 |