Key parameters at a glance

A radius of 9.62 Earth radii
A mass of 67.00 Earth masses
Surface gravity around 0.72 g
An orbital period of 4.585 days
Semi-major axis 0.0552 AU
Equilibrium temperature 1,847 K (1573 °C)
Distance from Earth 1,019.33 light-years
Earth Similarity Index 0.067
Travel time at Voyager 1 speed 17,975,920 years

TOI-907.01 Planet Profile

Physical Specs

Radius

9.62 R⊕

Radius (Jupiter)

0.857 R♃

Mass

67.00 M⊕

Mass (Jupiter)

0.211 M♃

Density

0.41 g/cm³

Surface Gravity

0.72 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.067

HZ Position Inner

Controversial No

Discovery

Year 2024

Method Transit

Facility Transiting Exoplanet Survey Satellite (TESS)

Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#31of 574

top 5.2%

This planet

9.62R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

TOI-2447 b 9.61 R⊕ KMT-2021-BLG-0240L b 9.60 R⊕ HD 107148 b 9.60 R⊕

Metric	Earth	TOI-907.01	Jupiter
Radius (R⊕)	1.00	9.62	11.21
Mass (M⊕)	1.00	67.00	317.83
Density (g/cm³)	5.51	0.41	1.33
Surface Gravity (g)	1.00	0.72	2.53
Insolation (S⊕)	1.00	1,729.67	0.037

Star Catalogue Identifiers

TIC

TIC 305424003

Gaia DR2

Gaia DR2 5910312231273215872

Gaia DR3

Gaia DR3 5910312231273215872

System

TOI-907

Percentile among Neptune-like cohort

Radius 9.616 R⊕ · percentile 95 / cohort 574

Mass 67.000 M⊕ · percentile 84 / cohort 574

Orbital period 4.58 d · percentile 18 / cohort 524

Distance 312.53 pc · percentile 48 / cohort 572

ESI 0.067 · percentile 0 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

4.585 days

Semi-major axis

0.0552 AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts approximately 4.58 Earth days (1.3% of a terrestrial year) at a mean orbital distance of 0.0552 AU.

Transit Fingerprint

Depth

0.210 %

Duration

5.249 h

Rp / R★

0.042764

Transit midpoint (BJD)

2,458,627.0568

Photometric dip

Transit produces a flux drop of 2,101 ppm lasting ≈ 5.25 h.

Extended Orbital Architecture

Planet / star radius ratio

0.042764

Semi-major axis / stellar radius

5.768

Transit mid-time (BJD)

2,458,627.0568

Angular separation (arcsec)

0.17700

Eq. Temperature

1,847K

(1573 °C)

Insolation (S⊕)

1,729.67

Earth = 1.00

Earth Similarity (ESI)

0.067

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Hord et al. 2024

Instrument

TESS CCD Array

Publication

2024-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2024 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).

Gliese 12 b · Rocky Terrestrial TOI-6002 b · Super-Earth TOI-5713 b · Super-Earth TOI-4336 A b · Sub-Neptune TOI-406.01 · Sub-Neptune TOI-1224 c · Sub-Neptune LHS 1678 d · Rocky Terrestrial TOI-2088 b · Sub-Neptune TOI-2120 b · Sub-Neptune TOI-1806.01 · Sub-Neptune TOI-4633 c · Sub-Neptune TOI-260 b · Super-Earth

Host System: TOI-907

Spectral Class

F-type yellow-white

Effective Temperature

6,272 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

2.060 R☉

Stellar Mass

1.069 M☉

Metallicity [Fe/H]

—

Distance

312.53 parsec

Light-years 1,019.33 ly

V-band magnitude

10.39 mag

Voyager-speed travel 17,975,920 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

3.172 mas

Total Proper Motion

37.862 mas/yr

PM Right Ascension

-1.39 mas/yr

PM Declination

-37.84 mas/yr

Galactic Cartesian (pc)

x = -0.062 · y = -0.452 · z = -0.890

Equatorial (J2000)

RA 262.18341° · Dec -62.84038°

Galactic ℓ, b

329.199° · -15.204°

Ecliptic λ, β

265.380° · -39.526°

HTM-20 index

-95238804