Temperature
6460 K
6107.1 to 6460
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Stellar HostProfile
TOI-640
Unclassified star • 342.0 pc
Records
5
literature rows
Planets
1
system count
References
6
distinct source labels
TIC: TIC 147977348
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: Rodriguez et al. 2021 • System source: TICv8
Mass
1.54 Msun
1.30 to 1.54
Radius
2.08 Rsun
2.08 to 2.20
Age
1.99 Gyr
single adopted value
Luminosity
0.83 log(Lsun)
0.78 to 0.83
Distance
342.0 pc
single adopted value
Planets
1
Stable across source rows
Scale Comparison
Radius against the Sun
Current adopted radius: 2.08 R☉ (circles scaled linearly by radius)
Sun
1.0 R☉ baseline
TOI-640
2.08 R☉
System Layout
Known planets
1 planets linked to this host
TOI-640 b
Transit
◌
Discovery
2021
Period
5.00 days
Radius
19.28 R⊕
Mass
181.2 M⊕
Eq. Temp
1816 K
TOI-640 and Its Planet
TOI-640 is a star 1120 light-years away with one known planet in orbit around it. The host star is 1.99 billion years old, with a mass of 1.54 solar masses and a radius of 2.08 solar radii. Its temperature is 6460 K. The star's reported mass and radius estimates are larger than the Sun's, and its reported temperature is hotter than the Sun's.
The one planet is TOI-640 b, a Jupiter-like world discovered in 2021 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. It completes an orbit every 5 days. Its radius is 19.3 Earth radii, and its mass is 181 Earth masses. Both its reported radius and mass estimates are larger than Earth's. Its mean density is 0.139 g/cm³, 0.0253 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
| ST TEFF | ST MASS | ST RAD | ST AGE | ST LUM | ST SPECTYPE | SY DIST | Stellar Ref | System Ref |
|---|---|---|---|---|---|---|---|---|
| 6460 | 1.54 | 2.08 | 1.99 | 0.83 | — | 342.0 | Rodriguez et al. 2021 | TICv8 |
| 6442 | — | 2.09 | — | — | — | 342.0 | ExoFOP | TICv8 |
| 6460 | 1.54 | 2.08 | 1.99 | — | — | 342.0 | Knudstrup et al. 2023 | TICv8 |
| 6442 | 1.30 | 2.09 | — | 0.83 | — | 342.0 | TICv8 | TICv8 |
| 6107.1 | — | 2.20 | — | 0.78 | — | 342.0 | Gaia DR2 | TICv8 |