Key parameters at a glance
- A radius of 11.81 Earth radii
- A mass of 408.73 Earth masses
- Surface gravity around 2.93 g
- An orbital period of 141.834 days
- Semi-major axis 0.5516 AU
- Equilibrium temperature 400 K (127 °C)
- Distance from Earth 356.13 light-years
- Earth Similarity Index 0.376
- Travel time at Voyager 1 speed 6,280,348 years
TOI-2010 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1557of 1771
top 87.9%
This planet
11.81R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2010 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 11.81 | 11.21 |
| Mass (M⊕) | 1.00 | 408.73 | 317.83 |
| Density (g/cm³) | 5.51 | 1.36 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.93 | 2.53 |
| Insolation (S⊕) | 1.00 | 4.09 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 408.727 M⊕ | Direct mass measurement (not derived). |
| Minimum mass (M sin i) | 408.727 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
TIC
TIC 26547036
Gaia DR2
Gaia DR2 2136815881249993600
Gaia DR3
Gaia DR3 2136815881249993600
System
TOI-2010
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 141.83 Earth days (38.8% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.5516 AU.
Transit Fingerprint
Depth
1.160 %
Duration
8.681 h
Impact parameter b
0.147
Rp / R★
0.100350
Transit midpoint (BJD)
2,458,712.3017
Photometric dip
Transit produces a flux drop of 11,600 ppm lasting ≈ 8.68 h.
Extended Orbital Architecture
Planet / star radius ratio
0.100350
Semi-major axis / stellar radius
109.800
Impact parameter (b)
0.147
RV semi-amplitude (K)
47.800 m/s
Transit mid-time (BJD)
2,458,712.3017
Long. of periastron (ω)
98.80°
Angular separation (arcsec)
5.05000
Eq. Temperature
400K
(127 °C)
Insolation (S⊕)
4.09
Earth = 1.00
Earth Similarity (ESI)
0.376
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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
Mann et al. 2023Instrument
TESS CCD Array
Publication
2023-12
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2010
Spectral Class
F-type yellow-white
Effective Temperature
5,929 K — hotter than the Sun (5,778 K)
Estimated Age
1.90 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.079 R☉
Stellar Mass
1.112 M☉
Metallicity [Fe/H]
0.17
Extended Stellar Properties
Surface gravity (log g)
4.417 dex
Stellar density
1.243 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
9.130 mas
Total Proper Motion
42.014 mas/yr
PM Right Ascension
40.52 mas/yr
PM Declination
11.11 mas/yr
Galactic Cartesian (pc)
x = 0.224 · y = -0.551 · z = 0.804
Equatorial (J2000)
RA 292.16694° · Dec 53.48737°
Galactic ℓ, b
85.213° · 16.310°
Ecliptic λ, β
320.377° · 73.056°
HTM-20 index
1047844685
Similar Worlds
TOI-201 b
Gas Giant · F-type yellow-white
Radius 11.83 R⊕ · 371.2 ly
EPIC 246851721 b
Gas Giant · F-type yellow-white
Radius 11.78 R⊕ · 1,215.4 ly
Kepler-1647 b
Gas Giant · F-type yellow-white
Radius 11.87 R⊕ · 3,954.5 ly
TOI-5153 b
Gas Giant · F-type yellow-white
Radius 11.88 R⊕ · 1,273.6 ly
WASP-117 b
Gas Giant · F-type yellow-white
Radius 11.88 R⊕ · 515.2 ly
TOI-628 b
Gas Giant · F-type yellow-white
Radius 11.88 R⊕ · 582.8 ly