Temperature
5241 K
5024.3 to 5241
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Stellar HostProfile
NGTS-8
K0 V • 429.0 pc
Records
4
literature rows
Planets
1
system count
References
5
distinct source labels
TIC: TIC 102068384
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: Costes et al. 2020 • System source: TICv8
Mass
0.89 Msun
0.87 to 0.89
Radius
0.98 Rsun
0.98 to 1.04
Age
12.48 Gyr
single adopted value
Distance
429.0 pc
single adopted value
Spectral Type
K0 V
Consistent across records
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
NGTS-8
0.98 R☉
System Layout
Known planets
1 planets linked to this host
NGTS-8 b
Transit
◌
Discovery
2019
Period
2.50 days
Radius
12.22 R⊕
Mass
295.6 M⊕
Eq. Temp
1345 K
NGTS-8 and Its Lone Planet
NGTS-8 is a K0 V star located 1400 light-years away. Its spectral type marks it as a main-sequence dwarf. The star is 12.5 billion years old and holds 0.89 solar masses within a radius of 0.98 solar radii. Its mass estimate is smaller than the Sun's, and its temperature of 5240 K is cooler than the Sun's. One planet orbits this host.
That planet is NGTS-8 b, a Jupiter-like world discovered by the transit method in 2019. Its radius of 12.2 Earth radii is larger than Earth's. It completes an orbit in 2.5 days. Its mass of 296 Earth masses is larger than Earth's, and its mean density is 0.893 g/cm³, 0.162 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
4
Stellar refs
4
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
Spectral Typestable