Key parameters at a glance
- A radius of 13.64 Earth radii
- A mass of 260.62 Earth masses
- Surface gravity around 1.40 g
- An orbital period of 2.989 days
- Semi-major axis 0.0415 AU
- Equilibrium temperature 1,431 K (1158 °C)
- Distance from Earth 1,180.22 light-years
- Earth Similarity Index 0.088
- Travel time at Voyager 1 speed 20,813,149 years
TOI-2570 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#606of 1771
top 34.2%
This planet
13.64R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-2570 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.64 | 11.21 |
| Mass (M⊕) | 1.00 | 260.62 | 317.83 |
| Density (g/cm³) | 5.51 | 0.56 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.40 | 2.53 |
| Insolation (S⊕) | 1.00 | 699.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 260.619 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 239816546
Gaia DR2
Gaia DR2 3445148131761842944
Gaia DR3
Gaia DR3 3445148131761842944
System
TOI-2570
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.99 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0415 AU.
Transit Fingerprint
Depth
1.304 %
Duration
3.006 h
Impact parameter b
0.320
Transit midpoint (BJD)
2,459,393.1453
Photometric dip
Transit produces a flux drop of 13,040 ppm lasting ≈ 3.01 h.
Extended Orbital Architecture
Semi-major axis / stellar radius
8.130
Impact parameter (b)
0.320
RV semi-amplitude (K)
111.200 m/s
Transit mid-time (BJD)
2,459,393.1453
Angular separation (arcsec)
0.11500
Eq. Temperature
1,431K
(1158 °C)
Insolation (S⊕)
699.00
Earth = 1.00
Earth Similarity (ESI)
0.088
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
Yee et al. 2022Instrument
TESS CCD Array
Publication
2022-08
Observation locale
Space
Discovery cohort
Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-2570
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,771 K — cooler than the Sun (5,778 K)
Estimated Age
4.40 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.095 R☉
Stellar Mass
1.063 M☉
Metallicity [Fe/H]
0.19
Extended Stellar Properties
Surface gravity (log g)
4.385 dex
Stellar density
1.138 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.736 mas
Total Proper Motion
17.101 mas/yr
PM Right Ascension
-6.39 mas/yr
PM Declination
-15.86 mas/yr
Galactic Cartesian (pc)
x = 0.042 · y = 0.846 · z = 0.531
Equatorial (J2000)
RA 87.18804° · Dec 32.08404°
Galactic ℓ, b
177.656° · 2.207°
Ecliptic λ, β
87.586° · 8.668°
HTM-20 index
774613056
Similar Worlds
TOI-3135 b
Gas Giant · G-type yellow (Sun-like)
Radius 13.65 R⊕ · 723.0 ly
NGTS-24 b
Gas Giant · G-type yellow (Sun-like)
Radius 13.61 R⊕ · 2,227.8 ly
WASP-16 b
Gas Giant · G-type yellow (Sun-like)
Radius 13.67 R⊕ · 633.2 ly
WASP-13 b
Gas Giant · G-type yellow (Sun-like)
Radius 13.67 R⊕ · 742.1 ly
HD 34445 g
Gas Giant · G-type yellow (Sun-like)
Radius 13.60 R⊕ · 150.3 ly
HD 210277 b
Gas Giant · G-type yellow (Sun-like)
Radius 13.60 R⊕ · 69.5 ly