Key parameters at a glance

A radius of 13.40 Earth radii
A mass of 572.09 Earth masses
Surface gravity around 3.19 g
An orbital period of 77.480 days
Semi-major axis 0.3840 AU
Equilibrium temperature 683 K (410 °C)
Distance from Earth 2,781.44 light-years
Earth Similarity Index 0.224
Travel time at Voyager 1 speed 49,050,613 years

NGC 2682 Sand 1429 b Planet Profile

Physical Specs

Radius

13.40 R⊕

Radius (Jupiter)

1.200 R♃

Mass

572.09 M⊕

Mass (Jupiter)

1.800 M♃

Density

1.31 g/cm³

Surface Gravity

3.19 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.224

HZ Position Unknown

Controversial No

Discovery

Year 2024

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#730of 1771

top 41.2%

This planet

13.40R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 114783 c 13.40 R⊕ HIP 79431 b 13.40 R⊕ HD 68988 b 13.40 R⊕

Metric	Earth	NGC 2682 Sand 1429 b	Jupiter
Radius (R⊕)	1.00	13.40	11.21
Mass (M⊕)	1.00	572.09	317.83
Density (g/cm³)	5.51	1.31	1.33
Surface Gravity (g)	1.00	3.19	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	572.091 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 437039505

Gaia DR2

Gaia DR2 604903468852379904

Gaia DR3

Gaia DR3 604903468852379904

System

NGC 2682 Sand 1429

Percentile among Gas Giant cohort

Radius 13.400 R⊕ · percentile 56 / cohort 1771

Mass 572.091 M⊕ · percentile 52 / cohort 1747

Orbital period 77.48 d · percentile 52 / cohort 1533

Distance 852.79 pc · percentile 84 / cohort 1759

ESI 0.224 · percentile 41 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

77.480 days

Semi-major axis

0.3840 AU

Eccentricity

0.000

Inclination

— °

Year Length

A year here lasts approximately 77.48 Earth days (21.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3840 AU.

Extended Orbital Architecture

RV semi-amplitude (K)

74.000 m/s

Transit mid-time (BJD)

2,459,231.1000

Long. of periastron (ω)

90.00°

Angular separation (arcsec)

0.45000

Eq. Temperature

683K

(410 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.224

0 = alien, 1 = Earth-identical

Insufficient insolation data — the surface is too hot to retain surface water.

Discovery Paper

Primary reference

Thomas et al. 2024

Instrument

Multiple Instruments

Publication

2024-03

Observation locale

Multiple Locales

Discovery cohort

Planets confirmed in 2024 at Multiple Observatories (12 shown).

HD 134606 e · Super-Earth Kepler-51 e · Sub-Neptune HD 134606 f · Sub-Neptune HD 134606 b · Sub-Neptune Teegarden's Star d · Rocky Terrestrial HD 134606 c · Sub-Neptune HD 104067 c · Sub-Neptune GJ 1289 b · Sub-Neptune TOI-4562 c · Gas Giant HD 222237 b · Gas Giant CI Tau c · Gas Giant HD 75898 c · Gas Giant

Host System: NGC 2682 Sand 1429

Spectral Class

F-type yellow-white

Effective Temperature

6,000 K — hotter than the Sun (5,778 K)

Estimated Age

4.30 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

2.130 R☉

Stellar Mass

1.260 M☉

Metallicity [Fe/H]

-0.01

Extended Stellar Properties

Surface gravity (log g)

4.010 dex

Stellar density

0.151 g/cm³

Metallicity ratio

[Fe/H]

Distance

852.79 parsec

Light-years 2,781.44 ly

V-band magnitude

12.70 mag

Voyager-speed travel 49,050,613 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

1.143 mas

Total Proper Motion

11.167 mas/yr

PM Right Ascension

-10.82 mas/yr

PM Declination

-2.76 mas/yr

Galactic Cartesian (pc)

x = -0.668 · y = 0.716 · z = 0.203

Equatorial (J2000)

RA 133.01478° · Dec 11.68996°

Galactic ℓ, b

215.906° · 32.019°

Ecliptic λ, β

132.166° · -5.677°

HTM-20 index

-1161309678