Key parameters at a glance

A radius of 14.57 Earth radii
A mass of 1,064.73 Earth masses
Surface gravity around 5.01 g
An orbital period of 4.078 days
Semi-major axis 0.0561 AU
Equilibrium temperature 1,728 K (1455 °C)
Distance from Earth 917.52 light-years
Earth Similarity Index 0.083
Travel time at Voyager 1 speed 16,180,508 years

TOI-1107 b Planet Profile

Physical Specs

Radius

14.57 R⊕

Radius (Jupiter)

1.300 R♃

Mass

1,064.73 M⊕

Mass (Jupiter)

3.350 M♃

Density

1.89 g/cm³

Surface Gravity

5.01 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.083

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

#278of 1771

top 15.6%

This planet

14.57R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

NGTS-16 b 14.57 R⊕ HATS-16 b 14.57 R⊕ WASP-135 b 14.57 R⊕

Metric	Earth	TOI-1107 b	Jupiter
Radius (R⊕)	1.00	14.57	11.21
Mass (M⊕)	1.00	1,064.73	317.83
Density (g/cm³)	5.51	1.89	1.33
Surface Gravity (g)	1.00	5.01	2.53
Insolation (S⊕)	1.00	532.00	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	1,064.725 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 394561119

Gaia DR2

Gaia DR2 5192364501633274880

Gaia DR3

Gaia DR3 5192364501633274880

System

TOI-1107

Percentile among Gas Giant cohort

Radius 14.572 R⊕ · percentile 84 / cohort 1771

Mass 1,064.725 M⊕ · percentile 68 / cohort 1747

Orbital period 4.08 d · percentile 30 / cohort 1533

Distance 281.31 pc · percentile 58 / cohort 1759

ESI 0.083 · percentile 19 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

4.078 days

Semi-major axis

0.0561 AU

Eccentricity

0.025

Inclination

88.63 °

Year Length

A year here lasts approximately 4.08 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0561 AU.

Transit Fingerprint

Depth

0.605 %

Duration

4.848 h

Impact parameter b

0.154

Rp / R★

0.073790

Transit midpoint (BJD)

2,459,385.0123

Photometric dip

Transit produces a flux drop of 6,047 ppm lasting ≈ 4.85 h.

Extended Orbital Architecture

Planet / star radius ratio

0.073790

Impact parameter (b)

0.154

RV semi-amplitude (K)

349.000 m/s

Transit mid-time (BJD)

2,459,385.0123

Long. of periastron (ω)

71.97°

Angular separation (arcsec)

0.19900

Eq. Temperature

1,728K

(1455 °C)

Insolation (S⊕)

532.00

Earth = 1.00

Earth Similarity (ESI)

0.083

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

Psaridi et al. 2022

Instrument

TESS CCD Array

Publication

2022-05

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-1107

Spectral Class

F-type yellow-white

Effective Temperature

6,311 K — hotter than the Sun (5,778 K)

Estimated Age

2.60 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.810 R☉

Stellar Mass

1.350 M☉

Metallicity [Fe/H]

-0.10

Extended Stellar Properties

Surface gravity (log g)

4.050 dex

Stellar density

0.337 g/cm³

Rotational v·sin i

12.31 km/s

Rotation period

6.20 days

Metallicity ratio

[Fe/H]

Distance

281.31 parsec

Light-years 917.52 ly

V-band magnitude

10.55 mag

Voyager-speed travel 16,180,508 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

3.526 mas

Total Proper Motion

9.516 mas/yr

PM Right Ascension

9.07 mas/yr

PM Declination

2.90 mas/yr

Galactic Cartesian (pc)

x = -0.123 · y = 0.056 · z = -0.991

Equatorial (J2000)

RA 155.60786° · Dec -82.21887°

Galactic ℓ, b

297.901° · -20.847°

Ecliptic λ, β

250.213° · -68.634°

HTM-20 index

1783569217