Key parameters at a glance

A radius of 12.80 Earth radii
A mass of 1,636.18 Earth masses
Surface gravity around 9.99 g
An orbital period of 18,144.762 days
Semi-major axis 14.1310 AU
Distance from Earth 142.20 light-years
Earth Similarity Index 0.432
Travel time at Voyager 1 speed 2,507,779 years

1 sibling around HD 151450

HD 151450 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
HD 151450 b	Neptune-like	6.94	38.46	21.893	—	2022
HD 151450 c this	Gas Giant	12.80	1,636.18	18,144.762	—	2022

HD 151450 c Planet Profile

Physical Specs

Radius

12.80 R⊕

Radius (Jupiter)

1.150 R♃

Mass

1,636.18 M⊕

Mass (Jupiter)

5.148 M♃

Density

4.29 g/cm³

Surface Gravity

9.99 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.432

HZ Position Unknown

Controversial No

Discovery

Year 2022

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#1063of 1771

top 60.0%

This planet

12.80R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 240210 b 12.80 R⊕ HD 29985 b 12.80 R⊕ HD 148164 c 12.80 R⊕

Metric	Earth	HD 151450 c	Jupiter
Radius (R⊕)	1.00	12.80	11.21
Mass (M⊕)	1.00	1,636.18	317.83
Density (g/cm³)	5.51	4.29	1.33
Surface Gravity (g)	1.00	9.99	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	1,636.181 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

HD 151450

TIC

TIC 12514017

Gaia DR2

Gaia DR2 4134094524223600640

Gaia DR3

Gaia DR3 4134094524223600640

System

HD 151450

Percentile among Gas Giant cohort

Radius 12.800 R⊕ · percentile 37 / cohort 1771

Mass 1,636.181 M⊕ · percentile 76 / cohort 1747

Orbital period 18,144.76 d · percentile 98 / cohort 1533

Distance 43.60 pc · percentile 16 / cohort 1759

ESI 0.432 · percentile 94 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

18,144.762 days

Semi-major axis

14.1310 AU

Eccentricity

0.138

Inclination

42.37 °

Year Length

A year here lasts about 49.68 Earth years on a mildly elliptical path at a mean orbital distance of 14.1310 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.432

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 151450

Spectral Class

F-type yellow-white

Effective Temperature

6,092 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.172 R☉

Stellar Mass

1.140 M☉

Metallicity [Fe/H]

—

Distance

43.60 parsec

Light-years 142.20 ly

V-band magnitude

7.43 mag

Voyager-speed travel 2,507,779 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

22.907 mas

Total Proper Motion

119.597 mas/yr

PM Right Ascension

76.71 mas/yr

PM Declination

-91.76 mas/yr

Galactic Cartesian (pc)

x = -0.297 · y = -0.914 · z = -0.275

Equatorial (J2000)

RA 252.00801° · Dec -15.96435°

Galactic ℓ, b

3.295° · 18.263°

Ecliptic λ, β

252.609° · 6.396°

HTM-20 index

798550793