Temperature
5509.0 K
5509.0 to 5610
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Stellar HostProfile
K2-246
Unclassified star • 703.6 pc
Records
3
literature rows
Planets
1
system count
References
4
distinct source labels
TIC: TIC 56721373
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
0.97 Msun
0.87 to 0.97
Radius
0.93 Rsun
0.89 to 0.94
Luminosity
-0.14 log(Lsun)
-0.15 to -0.14
Distance
703.6 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.93 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
K2-246
0.93 R☉
System Layout
Known planets
1 planets linked to this host
K2-246 b
Transit
◌
Discovery
2018
Period
5.77 days
Radius
3.49 R⊕
Mass
—
Eq. Temp
977 K
K2-246: A Distant Star With a Single Neptune-Like World
K2-246 is a star located 2290 light-years from Earth. It has a mass of 0.97 solar masses and a radius of 0.934 solar radii, making it slightly smaller than the Sun in both respects. Its temperature of 5510 K is also cooler than the Sun's. One planet orbits this host.
That planet, K2-246 b, is a Neptune-like world discovered by the transit method in 2018. During a transit, a planet passes in front of its star from our viewpoint, causing a small dip in observed brightness; repeated dips help establish orbital periods. K2-246 b completes one orbit every 5.77 days and has a radius of 3.49 Earth radii, larger than Earth's. In size classification, a Neptune-like planet reaches up to four times Earth's radius.
Provenance
Underlying measurements and references
Evidence Summary
Rows
3
Stellar refs
3
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed