Key parameters at a glance

A radius of 12.60 Earth radii
A mass of 2,598.57 Earth masses
Surface gravity around 16.37 g
An orbital period of 17,244.908 days
Semi-major axis 13.3800 AU
Distance from Earth 144.75 light-years
Earth Similarity Index 0.411
Travel time at Voyager 1 speed 2,552,654 years

HD 11112 b Planet Profile

Physical Specs

Radius

12.60 R⊕

Radius (Jupiter)

1.120 R♃

Mass

2,598.57 M⊕

Mass (Jupiter)

8.176 M♃

Density

7.14 g/cm³

Surface Gravity

16.37 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.411

HZ Position Unknown

Controversial No

Discovery

Year 2022

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#1179of 1771

top 66.5%

This planet

12.60R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Kepler-419 c 12.60 R⊕ 2MASS J04414489+2301513 b 12.60 R⊕ HD 47536 b 12.60 R⊕

Metric	Earth	HD 11112 b	Jupiter
Radius (R⊕)	1.00	12.60	11.21
Mass (M⊕)	1.00	2,598.57	317.83
Density (g/cm³)	5.51	7.14	1.33
Surface Gravity (g)	1.00	16.37	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	2,598.565 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

HD 11112

TIC

TIC 115319029

Gaia DR2

Gaia DR2 4959271163279358208

Gaia DR3

Gaia DR3 4959271163279358208

System

HD 11112

Percentile among Gas Giant cohort

Radius 12.600 R⊕ · percentile 31 / cohort 1771

Mass 2,598.565 M⊕ · percentile 84 / cohort 1747

Orbital period 17,244.91 d · percentile 97 / cohort 1533

Distance 44.38 pc · percentile 16 / cohort 1759

ESI 0.411 · percentile 88 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

17,244.908 days

Semi-major axis

13.3800 AU

Eccentricity

0.285

Inclination

144.88 °

Year Length

A year here lasts about 47.21 Earth years on a mildly elliptical path at a mean orbital distance of 13.3800 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.411

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Feng et al. 2022

Instrument

Multiple Instruments

Publication

2022-09

Observation locale

Ground

Discovery cohort

Planets confirmed in 2022 at Multiple Observatories (12 shown).

Kepler-138 e · Rocky Terrestrial HD 93351 b · Super-Earth GJ 1002 b · Rocky Terrestrial GJ 2030 b · Sub-Neptune GJ 3929 c · Sub-Neptune HD 217786 c · Sub-Neptune GJ 1002 c · Rocky Terrestrial HD 155918 b · Sub-Neptune HD 213519 b · Sub-Neptune HD 191939 g · Sub-Neptune GJ 514 b · Sub-Neptune HD 12235 b · Sub-Neptune

Host System: HD 11112

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,906 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.474 R☉

Stellar Mass

1.070 M☉

Metallicity [Fe/H]

0.19

Extended Stellar Properties

Surface gravity (log g)

4.131 dex

Stellar density

0.471 g/cm³

Metallicity ratio

[M/H]

Distance

44.38 parsec

Light-years 144.75 ly

V-band magnitude

7.13 mag

Voyager-speed travel 2,552,654 yr

Multi-band Host Photometry — 7 bands

Astrometric Data

Parallax

22.504 mas

Total Proper Motion

440.437 mas/yr

PM Right Ascension

413.30 mas/yr

PM Declination

152.22 mas/yr

Galactic Cartesian (pc)

x = 0.667 · y = 0.341 · z = -0.663

Equatorial (J2000)

RA 27.08814° · Dec -41.49441°

Galactic ℓ, b

267.483° · -71.492°

Ecliptic λ, β

4.231° · -48.034°

HTM-20 index

-809786781