Key parameters at a glance

A radius of 11.06 Earth radii
A mass of 200.23 Earth masses
Surface gravity around 1.64 g
An orbital period of 40.750 days
Semi-major axis 0.2490 AU
Equilibrium temperature 684 K (411 °C)
Distance from Earth 548.16 light-years
Earth Similarity Index 0.219
Travel time at Voyager 1 speed 9,666,812 years

1 sibling around TOI-1670

TOI-1670 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
TOI-1670 b	Sub-Neptune	2.06	41.32	10.985	1,062	2022
TOI-1670 c this	Gas Giant	11.06	200.23	40.750	684	2022

TOI-1670 c Planet Profile

Physical Specs

Radius

11.06 R⊕

Radius (Jupiter)

0.987 R♃

Mass

200.23 M⊕

Mass (Jupiter)

0.630 M♃

Density

0.81 g/cm³

Surface Gravity

1.64 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.219

HZ Position Inner

Controversial No

Discovery

Year 2022

Method Transit

Facility Transiting Exoplanet Survey Satellite (TESS)

Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#1660of 1771

top 93.7%

This planet

11.06R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

TOI-5007 b 11.07 R⊕ TOI-3593 b 11.03 R⊕ TOI-4504 c 11.10 R⊕

Metric	Earth	TOI-1670 c	Jupiter
Radius (R⊕)	1.00	11.06	11.21
Mass (M⊕)	1.00	200.23	317.83
Density (g/cm³)	5.51	0.81	1.33
Surface Gravity (g)	1.00	1.64	2.53
Insolation (S⊕)	1.00	14.55	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	200.232 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 441739020

Gaia DR2

Gaia DR2 1651911084230149248

Gaia DR3

Gaia DR3 1651911084230149248

System

TOI-1670

Percentile among Gas Giant cohort

Radius 11.063 R⊕ · percentile 6 / cohort 1771

Mass 200.232 M⊕ · percentile 20 / cohort 1747

Orbital period 40.75 d · percentile 50 / cohort 1533

Distance 168.07 pc · percentile 47 / cohort 1759

ESI 0.219 · percentile 41 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

40.750 days

Semi-major axis

0.2490 AU

Eccentricity

0.090

Inclination

88.84 °

Year Length

A year here lasts approximately 40.75 Earth days (11.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2490 AU.

Transit Fingerprint

Depth

0.603 %

Duration

5.400 h

Impact parameter b

0.760

Rp / R★

0.077000

Transit midpoint (BJD)

2,458,750.8829

Photometric dip

Transit produces a flux drop of 6,026 ppm lasting ≈ 5.40 h.

Extended Orbital Architecture

Planet / star radius ratio

0.077000

Semi-major axis / stellar radius

40.680

Impact parameter (b)

0.760

RV semi-amplitude (K)

32.700 m/s

Transit mid-time (BJD)

2,458,750.8829

Long. of periastron (ω)

105.50°

Sky-projected obliquity (λ)

-0.30°

Angular separation (arcsec)

1.48000

Eq. Temperature

684K

(411 °C)

Insolation (S⊕)

14.55

Earth = 1.00

Earth Similarity (ESI)

0.219

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

Tran et al. 2022

Instrument

TESS CCD Array

Publication

2022-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).

TOI-1452 b · Super-Earth TOI-712 d · Sub-Neptune TOI-1468 c · Sub-Neptune TOI-2136 b · Sub-Neptune LTT 1445 A c · Rocky Terrestrial TOI-712 c · Sub-Neptune LP 890-9 b · Super-Earth TOI-2081 b · Sub-Neptune GJ 3929 b · Rocky Terrestrial HD 260655 c · Super-Earth HD 73583 c · Sub-Neptune TOI-1759 b · Sub-Neptune

Host System: TOI-1670

Spectral Class

F-type yellow-white

Effective Temperature

6,170 K — hotter than the Sun (5,778 K)

Estimated Age

2.53 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.316 R☉

Stellar Mass

1.210 M☉

Metallicity [Fe/H]

0.09

Extended Stellar Properties

Surface gravity (log g)

4.290 dex

Stellar density

0.752 g/cm³

Rotational v·sin i

9.20 km/s

Metallicity ratio

[Fe/H]

Distance

168.07 parsec

Light-years 548.16 ly

V-band magnitude

9.89 mag

Voyager-speed travel 9,666,812 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

5.921 mas

Total Proper Motion

7.981 mas/yr

PM Right Ascension

-6.09 mas/yr

PM Declination

5.15 mas/yr

Galactic Cartesian (pc)

x = -0.058 · y = -0.301 · z = 0.952

Equatorial (J2000)

RA 259.01725° · Dec 72.16118°

Galactic ℓ, b

103.420° · 32.975°

Ecliptic λ, β

119.595° · 83.214°

HTM-20 index

-1342493751