Key parameters at a glance
- A radius of 2.05 Earth radii
- A mass of 4.85 Earth masses
- Surface gravity around 1.16 g
- An orbital period of 9.531 days
- Semi-major axis 0.0793 AU
- Equilibrium temperature 650 K (377 °C)
- Distance from Earth 191.20 light-years
- Earth Similarity Index 0.419
- Travel time at Voyager 1 speed 3,371,751 years
- Almost certainly tidally locked to its host star given the close orbit
2 siblings around TOI-712
TOI-712 b shares its host star with 2 other confirmed planets. Side-by-side measurements below.
TOI-712 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1900of 1978
top 96.0%
This planet
2.05R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | TOI-712 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.05 | 11.21 |
| Mass (M⊕) | 1.00 | 4.85 | 317.83 |
| Density (g/cm³) | 5.51 | 3.10 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.16 | 2.53 |
| Insolation (S⊕) | 1.00 | 22.60 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 150151262
Gaia DR2
Gaia DR2 5284358990266469760
Gaia DR3
Gaia DR3 5284358990266469760
System
TOI-712
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 9.53 Earth days (2.6% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.0793 AU.
Transit Fingerprint
Depth
0.077 %
Duration
1.735 h
Impact parameter b
0.410
Rp / R★
0.027720
Transit midpoint (BJD)
2,458,757.2689
Photometric dip
Transit produces a flux drop of 768 ppm lasting ≈ 1.74 h.
Extended Orbital Architecture
Planet / star radius ratio
0.027720
Impact parameter (b)
0.410
Transit mid-time (BJD)
2,458,757.2689
Long. of periastron (ω)
68.00°
Angular separation (arcsec)
1.35000
Eq. Temperature
650K
(377 °C)
Insolation (S⊕)
22.60
Earth = 1.00
Earth Similarity (ESI)
0.419
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Vach 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-712
Spectral Class
K-type orange
Effective Temperature
4,622 K — cooler than the Sun (5,778 K)
Estimated Age
0.83 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.674 R☉
Stellar Mass
0.732 M☉
Metallicity [Fe/H]
-0.02
Extended Stellar Properties
Surface gravity (log g)
4.645 dex
Stellar density
3.360 g/cm³
Systemic radial velocity
3.16 km/s
Rotation period
12.45 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
17.030 mas
Total Proper Motion
31.141 mas/yr
PM Right Ascension
-2.93 mas/yr
PM Declination
31.00 mas/yr
Galactic Cartesian (pc)
x = -0.021 · y = 0.409 · z = -0.912
Equatorial (J2000)
RA 92.93611° · Dec -65.82584°
Galactic ℓ, b
275.579° · -28.607°
Ecliptic λ, β
149.544° · -88.606°
HTM-20 index
683509979
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