Temperature
3800 K
3661 to 3842
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Stellar HostProfile
L 168-9
M1 V • 25.15 pc
Records
7
literature rows
Planets
1
system count
References
8
distinct source labels
HIP: HIP 115211TIC: TIC 234994474
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: Astudillo-Defru et al. 2020 • System source: TICv8
Mass
0.62 Msun
0.53 to 0.62
Radius
0.60 Rsun
0.60 to 0.70
Luminosity
-1.17 log(Lsun)
-1.20 to -1.10
Distance
25.15 pc
single adopted value
Spectral Type
M1 V
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.60 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
L 168-9
0.60 R☉
System Layout
Known planets
1 planets linked to this host
L 168-9 b
Transit
◌
Discovery
2020
Period
1.40 days
Radius
1.63 R⊕
Mass
4.07 M⊕
Eq. Temp
998 K
L 168-9 b: A Super-Earth Orbiting a Cool Red Dwarf
L 168-9 is an M1 V star, a small, cool red dwarf, located 82 light-years away. Its spectral type places it among the coolest and reddest stellar classes, and a trailing V marks it as a main-sequence dwarf. The star has a mass of 0.62 solar masses and a radius of 0.6 solar radii, both smaller than the Sun's, and a temperature of 3800 K, cooler than the Sun's. One planet is known to orbit this host.
That planet, L 168-9 b, is a Super-Earth discovered by the transit method in 2020, when it passed in front of its star from our viewpoint and caused a small dip in observed brightness. Its radius is 1.63 Earth radii, larger than Earth's, and its mass is 4.07 Earth masses, also larger than Earth's. Its mean density is 5.18 g/cm³, 0.94 times Earth's. L 168-9 b completes one orbit in 1.4 days, giving it a remarkably short year.
Provenance
Underlying measurements and references
Evidence Summary
Rows
7
Stellar refs
7
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Luminositydisputed
Surface Gravitydisputed
Metallicitydisputed
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3800 | 0.62 | 0.60 | — | -1.17 | M1 V | 25.15 | Astudillo-Defru et al. 2020 | TICv8 |
| 3746 | 0.59 | 0.60 | — | -1.20 | — | 25.15 | TICv8 | TICv8 |
| 3661 | — | 0.70 | — | -1.10 | — | 25.15 | Gaia DR2 | TICv8 |
| 3794 | — | 0.60 | — | — | — | 25.15 | ExoFOP | TICv8 |
| — | — | — | — | — | M0.5 | 25.15 | Hawley et al. 1996 | TICv8 |
| 3842 | 0.61 | 0.60 | — | -1.14 | M0.5 V | 25.15 | Hobson et al. 2024 | TICv8 |
| 3743 | 0.53 | 0.68 | — | -1.10 | M2 | 25.15 | Turnbull 2015 | TICv8 |