Key parameters at a glance

A radius of 12.10 Earth radii
A mass of 6,547.27 Earth masses
Surface gravity around 44.72 g
An orbital period of 24,955.458 days
Semi-major axis 15.0370 AU
Distance from Earth 113.67 light-years
Earth Similarity Index 0.289
Travel time at Voyager 1 speed 2,004,621 years

HIP 948 b Planet Profile

Physical Specs

Radius

12.10 R⊕

Radius (Jupiter)

1.080 R♃

Mass

6,547.27 M⊕

Mass (Jupiter)

20.600 M♃

Density

20.30 g/cm³

Surface Gravity

44.72 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.289

HZ Position Unknown

Controversial No

Discovery

Year 2022

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#1454of 1771

top 82.0%

This planet

12.10R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 62364 b 12.10 R⊕ HD 106515 A b 12.10 R⊕ BD+20 2457 b 12.10 R⊕

Metric	Earth	HIP 948 b	Jupiter
Radius (R⊕)	1.00	12.10	11.21
Mass (M⊕)	1.00	6,547.27	317.83
Density (g/cm³)	5.51	20.30	1.33
Surface Gravity (g)	1.00	44.72	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	6,547.265 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

HIP

HIP 948

TIC

TIC 120523708

Gaia DR2

Gaia DR2 4996711836306613120

Gaia DR3

Gaia DR3 4996711836306613120

System

HIP 948

Percentile among Gas Giant cohort

Radius 12.100 R⊕ · percentile 16 / cohort 1771

Mass 6,547.265 M⊕ · percentile 97 / cohort 1747

Orbital period 24,955.46 d · percentile 98 / cohort 1533

Distance 34.85 pc · percentile 10 / cohort 1759

ESI 0.289 · percentile 55 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

24,955.458 days

Semi-major axis

15.0370 AU

Eccentricity

0.230

Inclination

111.00 °

Year Length

A year here lasts about 68.32 Earth years on a mildly elliptical path at a mean orbital distance of 15.0370 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.289

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: HIP 948

Spectral Class

K-type orange

Effective Temperature

4,497 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.688 R☉

Stellar Mass

0.710 M☉

Metallicity [Fe/H]

—

Distance

34.85 parsec

Light-years 113.67 ly

V-band magnitude

9.92 mag

Voyager-speed travel 2,004,621 yr

Multi-band Host Photometry — 7 bands

Astrometric Data

Parallax

28.664 mas

Total Proper Motion

749.113 mas/yr

PM Right Ascension

738.50 mas/yr

PM Declination

-125.66 mas/yr

Galactic Cartesian (pc)

x = 0.774 · y = 0.040 · z = -0.632

Equatorial (J2000)

RA 2.92763° · Dec -39.23049°

Galactic ℓ, b

334.795° · -75.340°

Ecliptic λ, β

344.446° · -36.583°

HTM-20 index

1512405790

Similar Worlds

HD 184010 b

Gas Giant · K-type orange

Radius 12.10 R⊕ · 198.3 ly

tau Gem b

Gas Giant · K-type orange

Radius 12.10 R⊕ · 367.0 ly

KIC 3526061 b

Gas Giant · K-type orange

Radius 12.10 R⊕ · 1,308.6 ly

HD 109988 b

Gas Giant · K-type orange

Radius 12.10 R⊕ · 138.7 ly

BD+20 2457 b

Gas Giant · K-type orange

Radius 12.10 R⊕ · 5,021.9 ly

HD 139357 b

Gas Giant · K-type orange

Radius 12.10 R⊕ · 365.6 ly

Explore Related Categories

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