Key parameters at a glance

A radius of 14.10 Earth radii
A mass of 191.00 Earth masses
Surface gravity around 0.96 g
An orbital period of 500.000 days
Semi-major axis 1.2700 AU
Distance from Earth 362.93 light-years
Earth Similarity Index 0.268
Travel time at Voyager 1 speed 6,400,329 years

1 sibling around TOI-1669

TOI-1669 b 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-1669 c	Sub-Neptune	2.30	13.00	2.680	1,285	2024
TOI-1669 b this	Gas Giant	14.10	191.00	500.000	—	2023

TOI-1669 b Planet Profile

Physical Specs

Radius

14.10 R⊕

Radius (Jupiter)

1.260 R♃

Mass

191.00 M⊕

Mass (Jupiter)

0.601 M♃

Density

0.37 g/cm³

Surface Gravity

0.96 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.268

HZ Position Unknown

Controversial No

Discovery

Year 2023

Method Radial Velocity

Facility W. M. Keck Observatory

Telescope 10 m Keck I Telescope

Size rank in cohort

Rank by radius

#371of 1771

top 20.9%

This planet

14.10R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 27894 b 14.10 R⊕ HD 103720 b 14.10 R⊕ HD 216770 b 14.10 R⊕

Metric	Earth	TOI-1669 b	Jupiter
Radius (R⊕)	1.00	14.10	11.21
Mass (M⊕)	1.00	191.00	317.83
Density (g/cm³)	5.51	0.37	1.33
Surface Gravity (g)	1.00	0.96	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	191.000 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 428679607

Gaia DR2

Gaia DR2 569673024645542528

Gaia DR3

Gaia DR3 569673024645542528

System

TOI-1669

Percentile among Gas Giant cohort

Radius 14.100 R⊕ · percentile 77 / cohort 1771

Mass 191.000 M⊕ · percentile 18 / cohort 1747

Orbital period 500.00 d · percentile 68 / cohort 1533

Distance 111.28 pc · percentile 37 / cohort 1759

ESI 0.268 · percentile 49 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

500.000 days

Semi-major axis

1.2700 AU

Eccentricity

0.000

Inclination

— °

Year Length

A year here lasts about 1.37 Earth years on a nearly circular orbit at a mean orbital distance of 1.2700 AU.

Extended Orbital Architecture

RV semi-amplitude (K)

15.500 m/s

Transit mid-time (BJD)

2,459,325.0000

Long. of periastron (ω)

90.00°

Angular separation (arcsec)

11.40000

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.268

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Van Zandt et al. 2023

Instrument

HIRES Spectrometer

Publication

2023-02

Observation locale

Ground

Discovery cohort

Planets confirmed in 2023 at W. M. Keck Observatory (5 shown).

Kepler-100 e · Neptune-like Kepler-139 e · Gas Giant Kepler-48 f · Gas Giant TOI-1694 c · Gas Giant PZ Tel b · Gas Giant

Host System: TOI-1669

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,497 K — cooler than the Sun (5,778 K)

Estimated Age

7.70 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.056 R☉

Stellar Mass

0.987 M☉

Metallicity [Fe/H]

0.27

Extended Stellar Properties

Surface gravity (log g)

4.382 dex

Stellar density

1.169 g/cm³

Rotational v·sin i

0.60 km/s

Metallicity ratio

[Fe/H]

Distance

111.28 parsec

Light-years 362.93 ly

V-band magnitude

10.22 mag

Voyager-speed travel 6,400,329 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

8.958 mas

Total Proper Motion

97.981 mas/yr

PM Right Ascension

91.73 mas/yr

PM Declination

-34.43 mas/yr

Galactic Cartesian (pc)

x = 0.078 · y = 0.080 · z = 0.994

Equatorial (J2000)

RA 45.95647° · Dec 83.58743°

Galactic ℓ, b

126.696° · 21.707°

Ecliptic λ, β

80.595° · 61.619°

HTM-20 index

850322700