Key parameters at a glance

A radius of 13.30 Earth radii
A mass of 692.87 Earth masses
Surface gravity around 3.92 g
An orbital period of 511.210 days
Distance from Earth 2,680.73 light-years
Earth Similarity Index 0.374
Travel time at Voyager 1 speed 47,274,757 years

NGC 2682 Sand 978 b Planet Profile

Physical Specs

Radius

13.30 R⊕

Radius (Jupiter)

1.190 R♃

Mass

692.87 M⊕

Mass (Jupiter)

2.180 M♃

Density

1.62 g/cm³

Surface Gravity

3.92 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.374

HZ Position Unknown

Controversial No

Discovery

Year 2017

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#793of 1771

top 44.7%

This planet

13.30R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 12661 b 13.30 R⊕ HD 129445 b 13.30 R⊕ GJ 876 b 13.30 R⊕

Metric	Earth	NGC 2682 Sand 978 b	Jupiter
Radius (R⊕)	1.00	13.30	11.21
Mass (M⊕)	1.00	692.87	317.83
Density (g/cm³)	5.51	1.62	1.33
Surface Gravity (g)	1.00	3.92	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	692.869 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 437039060

Gaia DR2

Gaia DR2 604911375882674560

Gaia DR3

Gaia DR3 604911375882674560

System

NGC 2682 Sand 978

Percentile among Gas Giant cohort

Radius 13.300 R⊕ · percentile 53 / cohort 1771

Mass 692.869 M⊕ · percentile 57 / cohort 1747

Orbital period 511.21 d · percentile 68 / cohort 1533

Distance 821.92 pc · percentile 84 / cohort 1759

ESI 0.374 · percentile 77 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

511.210 days

Semi-major axis

— AU

Eccentricity

0.160

Inclination

— °

Year Length

A year here lasts about 1.40 Earth years on a mildly elliptical path.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.374

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Brucalassi et al. 2017

Instrument

Multiple Instruments

Publication

2017-07

Observation locale

Ground

Discovery cohort

Planets confirmed in 2017 at Multiple Observatories (12 shown).

GJ 625 b · Super-Earth TRAPPIST-1 e · Rocky Terrestrial TRAPPIST-1 f · Rocky Terrestrial TRAPPIST-1 g · Rocky Terrestrial TRAPPIST-1 h · Rocky Terrestrial HD 34445 e · Neptune-like BD+03 2562 b · Gas Giant HD 111591 b · Gas Giant HD 34445 d · Neptune-like MOA-2012-BLG-006L b · Gas Giant HD 76920 b · Gas Giant HD 34445 f · Neptune-like

Host System: NGC 2682 Sand 978

Spectral Class

K-type orange

Effective Temperature

4,200 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

21.017 R☉

Stellar Mass

1.370 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

1.800 dex

Systemic radial velocity

34.57 km/s

Metallicity ratio

[M/H]

Distance

821.92 parsec

Light-years 2,680.73 ly

V-band magnitude

9.81 mag

Voyager-speed travel 47,274,757 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.188 mas

Total Proper Motion

11.325 mas/yr

PM Right Ascension

-10.96 mas/yr

PM Declination

-2.85 mas/yr

Galactic Cartesian (pc)

x = -0.665 · y = 0.718 · z = 0.204

Equatorial (J2000)

RA 132.82281° · Dec 11.75630°

Galactic ℓ, b

215.742° · 31.876°

Ecliptic λ, β

131.966° · -5.664°

HTM-20 index

-1142396810

Similar Worlds

TOI-4010 e

Gas Giant · K-type orange

Radius 13.30 R⊕ · 578.9 ly

HD 94890 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 201.2 ly

HD 12661 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 123.4 ly

HD 108863 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 537.3 ly

Kepler-432 c

Gas Giant · K-type orange

Radius 13.30 R⊕ · 2,765.9 ly

HD 108341 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 159.5 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries Multiple Observatories Mission K-type orange Hosts