Temperature
3980 K
3907 to 4130.8
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Stellar HostProfile
TOI-1728
M0 • 60.80 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 285048486
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: Kanodia et al. 2020 • System source: TICv8
Mass
0.65 Msun
0.61 to 0.65
Radius
0.62 Rsun
0.57 to 0.63
Age
7.10 Gyr
single adopted value
Luminosity
-1.06 log(Lsun)
-1.07 to -1.06
Distance
60.80 pc
single adopted value
Spectral Type
M0
Multiple classifications reported
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 0.62 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-1728
0.62 R☉
System Layout
Known planets
1 planets linked to this host
TOI-1728 b
Transit
◌
Discovery
2020
Period
3.49 days
Radius
5.05 R⊕
Mass
26.78 M⊕
Eq. Temp
767 K
TOI-1728 b: A Jupiter-Like Planet Around a Cool Red Dwarf
TOI-1728 is an M0 star 198 light-years away. Its spectral type marks it as a small, cool red dwarf. The star has a mass of 0.646 solar masses, a radius of 0.624 solar radii, and a temperature of 3980 K. All three values are smaller or cooler than the Sun's. TOI-1728 is 7.1 billion years old and hosts one known planet.
That planet is TOI-1728 b, discovered in 2020 by the transit method, in which a planet crossing in front of its star produces a small dip in observed brightness. Repeated dips help establish orbital periods. TOI-1728 b completes an orbit every 3.49 days. Its radius of 5.05 Earth radii exceeds 4 times Earth's radius, making it Jupiter-like in size, and its mass estimate of 26.8 Earth masses is larger than Earth's. Its mean density is 1.15 g/cm³, 0.208 times Earth's.
Provenance
Underlying measurements and references
Evidence Summary
Rows
5
Stellar refs
5
System refs
1
Distancestable
Parallaxstable
Temperaturedisputed
Massdisputed
Radiusdisputed
Agestable
Luminositydisputed
Surface Gravitydisputed
Metallicitystable
Spectral Typedisputed
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 3907 | 0.61 | 0.63 | — | -1.07 | — | 60.80 | TICv8 | TICv8 |
| 3907 | — | 0.63 | — | — | — | 60.80 | ExoFOP | TICv8 |
| — | — | 0.62 | — | — | M0 V | 60.80 | Antonov et. al 2026 | TICv8 |
| 4130.8 | — | 0.57 | — | -1.06 | — | 60.80 | Gaia DR2 | TICv8 |
| 3980 | 0.65 | 0.62 | 7.10 | -1.06 | M0 | 60.80 | Kanodia et al. 2020 | TICv8 |