Key parameters at a glance
- A radius of 18.10 Earth radii
- A mass of 122.68 Earth masses
- Surface gravity around 0.37 g
- An orbital period of 4.881 days
- Semi-major axis 0.0607 AU
- Equilibrium temperature 1,387 K (1114 °C)
- Distance from Earth 1,122.12 light-years
- Earth Similarity Index 0.059
- Travel time at Voyager 1 speed 19,788,645 years
TOI-2641 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#68of 1771
top 3.8%
This planet
18.10R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2641 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 18.10 | 11.21 |
| Mass (M⊕) | 1.00 | 122.68 | 317.83 |
| Density (g/cm³) | 5.51 | 0.09 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.37 | 2.53 |
| Insolation (S⊕) | 1.00 | 602.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 122.682 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 162802770
Gaia DR2
Gaia DR2 5382970374226953600
Gaia DR3
Gaia DR3 5382970374226953600
System
TOI-2641
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.88 Earth days (1.3% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0607 AU.
Transit Fingerprint
Depth
0.339 %
Duration
1.680 h
Impact parameter b
1.043
Rp / R★
0.124000
Transit midpoint (BJD)
2,459,332.2133
Photometric dip
Transit produces a flux drop of 3,386 ppm lasting ≈ 1.68 h.
Extended Orbital Architecture
Planet / star radius ratio
0.124000
Semi-major axis / stellar radius
9.677
Impact parameter (b)
1.043
RV semi-amplitude (K)
41.600 m/s
Transit mid-time (BJD)
2,459,332.2133
Angular separation (arcsec)
0.17600
Eq. Temperature
1,387K
(1114 °C)
Insolation (S⊕)
602.00
Earth = 1.00
Earth Similarity (ESI)
0.059
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Discovery Paper
Primary reference
Psaridi et al. 2023Instrument
TESS CCD Array
Publication
2023-07
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2641
Spectral Class
F-type yellow-white
Effective Temperature
6,100 K — hotter than the Sun (5,778 K)
Estimated Age
10.80 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.336 R☉
Stellar Mass
1.160 M☉
Metallicity [Fe/H]
-0.15
Extended Stellar Properties
Surface gravity (log g)
4.200 dex
Stellar density
0.482 g/cm³
Rotational v·sin i
1.90 km/s
Rotation period
35.60 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.878 mas
Total Proper Motion
33.985 mas/yr
PM Right Ascension
-32.53 mas/yr
PM Declination
-9.82 mas/yr
Galactic Cartesian (pc)
x = -0.726 · y = 0.113 · z = -0.679
Equatorial (J2000)
RA 171.13037° · Dec -42.73214°
Galactic ℓ, b
286.381° · 17.329°
Ecliptic λ, β
192.880° · -41.884°
HTM-20 index
-1266648988
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