Key parameters at a glance

A radius of 12.60 Earth radii
A mass of 2,511.80 Earth masses
Surface gravity around 15.82 g
An orbital period of 18,538.793 days
Semi-major axis 13.8950 AU
Distance from Earth 117.12 light-years
Earth Similarity Index 0.415
Travel time at Voyager 1 speed 2,065,446 years

HD 88072 b Planet Profile

Physical Specs

Radius

12.60 R⊕

Radius (Jupiter)

1.120 R♃

Mass

2,511.80 M⊕

Mass (Jupiter)

7.903 M♃

Density

6.90 g/cm³

Surface Gravity

15.82 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.415

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 88072 b	Jupiter
Radius (R⊕)	1.00	12.60	11.21
Mass (M⊕)	1.00	2,511.80	317.83
Density (g/cm³)	5.51	6.90	1.33
Surface Gravity (g)	1.00	15.82	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	2,511.798 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

HD 88072

TIC

TIC 344988456

Gaia DR2

Gaia DR2 3835743693290649728

Gaia DR3

Gaia DR3 3835743693290897152

System

HD 88072

Percentile among Gas Giant cohort

Radius 12.600 R⊕ · percentile 31 / cohort 1771

Mass 2,511.798 M⊕ · percentile 83 / cohort 1747

Orbital period 18,538.79 d · percentile 98 / cohort 1533

Distance 35.91 pc · percentile 11 / cohort 1759

ESI 0.415 · percentile 90 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

18,538.793 days

Semi-major axis

13.8950 AU

Eccentricity

0.156

Inclination

169.63 °

Year Length

A year here lasts about 50.76 Earth years on a mildly elliptical path at a mean orbital distance of 13.8950 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.415

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 88072

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,785 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.032 R☉

Stellar Mass

1.040 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.428 dex

Stellar density

1.334 g/cm³

Metallicity ratio

[M/H]

Distance

35.91 parsec

Light-years 117.12 ly

V-band magnitude

7.55 mag

Voyager-speed travel 2,065,446 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

27.819 mas

Total Proper Motion

203.056 mas/yr

PM Right Ascension

-202.94 mas/yr

PM Declination

-6.78 mas/yr

Galactic Cartesian (pc)

x = -0.885 · y = 0.464 · z = 0.041

Equatorial (J2000)

RA 152.34675° · Dec 2.37105°

Galactic ℓ, b

238.429° · 44.020°

Ecliptic λ, β

153.462° · -8.424°

HTM-20 index

1898667794