Temperature
5583.6 K
4443 to 5747
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Stellar HostProfile
K2-87
Unclassified star • 491.2 pc
Records
6
literature rows
Planets
1
system count
References
7
distinct source labels
TIC: TIC 17409453
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
0.99 Msun
0.95 to 1.16
Radius
1.45 Rsun
0.93 to 1.51
Luminosity
0.27 log(Lsun)
-0.10 to 0.27
Distance
491.2 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 1.45 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-87
1.45 R☉
System Layout
Known planets
1 planets linked to this host
K2-87 b
Transit
◌
Discovery
2016
Period
9.73 days
Radius
7.60 R⊕
Mass
—
Eq. Temp
979 K
K2-87 and Its Jupiter-Like Planet
K2-87 is a star 1600 light-years away with one known planet. The host star has a mass of 0.99 solar masses, a radius of 1.45 solar radii, and a temperature of 5580 K. Its radius is larger than the Sun's, while its temperature is cooler than the Sun's.
The planet K2-87 b is Jupiter-like, a size class for planets with radii exceeding 4 Earth radii. It was discovered in 2016 by the transit method, in which a planet passes in front of its star from our viewpoint and causes a small dip in observed brightness. K2-87 b has a radius of 7.6 Earth radii, larger than Earth's, and an orbital period of 9.73 days, the time it takes to complete one orbit.
Provenance
Underlying measurements and references
Evidence Summary
Rows
6
Stellar refs
6
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 |
|---|---|---|---|---|---|---|---|---|
| 5583.6 | — | 1.45 | — | — | — | 491.2 | ExoFOP | TICv8 |
| 4443 | — | 1.51 | — | -0.10 | — | 491.2 | Gaia DR2 | TICv8 |
| 5583.6 | 0.99 | 1.45 | — | 0.27 | — | 491.2 | TICv8 | TICv8 |
| 5747 | 1.16 | 1.40 | — | — | — | 491.2 | Livingston et al. 2019 | TICv8 |
| — | — | 1.51 | — | — | — | 491.2 | Kruse et al. 2019 | TICv8 |
| 5406 | 0.95 | 0.93 | — | — | — | 491.2 | Crossfield et al. 2016 | TICv8 |