Key parameters at a glance

A radius of 12.20 Earth radii
A mass of 99.80 Earth masses
Surface gravity around 0.67 g
An orbital period of 14.233 days
Semi-major axis 0.1180 AU
Distance from Earth 162.45 light-years
Earth Similarity Index 0.267
Travel time at Voyager 1 speed 2,864,739 years

HD 28192 b Planet Profile

Physical Specs

Radius

12.20 R⊕

Radius (Jupiter)

1.080 R♃

Mass

99.80 M⊕

Mass (Jupiter)

0.314 M♃

Density

0.30 g/cm³

Surface Gravity

0.67 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.267

HZ Position Unknown

Controversial No

Discovery

Year 2022

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#1410of 1771

top 79.6%

This planet

12.20R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

FU Tau b 12.20 R⊕ HD 168443 c 12.20 R⊕ HIP 5158 c 12.20 R⊕

Metric	Earth	HD 28192 b	Jupiter
Radius (R⊕)	1.00	12.20	11.21
Mass (M⊕)	1.00	99.80	317.83
Density (g/cm³)	5.51	0.30	1.33
Surface Gravity (g)	1.00	0.67	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	99.798 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 28192

TIC

TIC 248644661

Gaia DR2

Gaia DR2 3205907595694244480

Gaia DR3

Gaia DR3 3205907595694244480

System

HD 28192

Percentile among Gas Giant cohort

Radius 12.200 R⊕ · percentile 19 / cohort 1771

Mass 99.798 M⊕ · percentile 6 / cohort 1747

Orbital period 14.23 d · percentile 46 / cohort 1533

Distance 49.81 pc · percentile 19 / cohort 1759

ESI 0.267 · percentile 49 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

14.233 days

Semi-major axis

0.1180 AU

Eccentricity

0.104

Inclination

— °

Year Length

A year here lasts approximately 14.23 Earth days (3.9% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.1180 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.267

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 28192

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,920 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.071 R☉

Stellar Mass

1.080 M☉

Metallicity [Fe/H]

—

Distance

49.81 parsec

Light-years 162.45 ly

V-band magnitude

8.06 mag

Voyager-speed travel 2,864,739 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

20.049 mas

Total Proper Motion

51.136 mas/yr

PM Right Ascension

-38.24 mas/yr

PM Declination

33.95 mas/yr

Galactic Cartesian (pc)

x = 0.395 · y = 0.918 · z = -0.030

Equatorial (J2000)

RA 66.70325° · Dec -1.72448°

Galactic ℓ, b

196.232° · -32.586°

Ecliptic λ, β

64.537° · -23.128°

HTM-20 index

747735243