Key parameters at a glance

A radius of 12.00 Earth radii
A mass of 7,505.20 Earth masses
Surface gravity around 52.12 g
An orbital period of 10,839.833 days
Semi-major axis 9.9500 AU
Distance from Earth 200.13 light-years
Earth Similarity Index 0.271
Travel time at Voyager 1 speed 3,529,298 years

HD 80913 b Planet Profile

Physical Specs

Radius

12.00 R⊕

Radius (Jupiter)

1.070 R♃

Mass

7,505.20 M⊕

Mass (Jupiter)

23.614 M♃

Density

23.90 g/cm³

Surface Gravity

52.12 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.271

HZ Position Unknown

Controversial No

Discovery

Year 2022

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#1494of 1771

top 84.3%

This planet

12.00R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

TOI-3757 b 12.00 R⊕ HIP 78530 b 12.00 R⊕ HD 221420 b 12.00 R⊕

Metric	Earth	HD 80913 b	Jupiter
Radius (R⊕)	1.00	12.00	11.21
Mass (M⊕)	1.00	7,505.20	317.83
Density (g/cm³)	5.51	23.90	1.33
Surface Gravity (g)	1.00	52.12	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	7,505.200 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

HD 80913

TIC

TIC 309433928

Gaia DR2

Gaia DR2 5195752440555653504

Gaia DR3

Gaia DR3 5195752440555653504

System

HD 80913

Percentile among Gas Giant cohort

Radius 12.000 R⊕ · percentile 15 / cohort 1771

Mass 7,505.200 M⊕ · percentile 98 / cohort 1747

Orbital period 10,839.83 d · percentile 96 / cohort 1533

Distance 61.36 pc · percentile 25 / cohort 1759

ESI 0.271 · percentile 50 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

10,839.833 days

Semi-major axis

9.9500 AU

Eccentricity

0.313

Inclination

22.33 °

Year Length

A year here lasts about 29.68 Earth years on a highly eccentric trajectory at a mean orbital distance of 9.9500 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.271

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 80913

Spectral Class

F-type yellow-white

Effective Temperature

6,013 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.654 R☉

Stellar Mass

1.110 M☉

Metallicity [Fe/H]

-0.68

Extended Stellar Properties

Surface gravity (log g)

4.046 dex

Stellar density

0.346 g/cm³

Metallicity ratio

[M/H]

Distance

61.36 parsec

Light-years 200.13 ly

V-band magnitude

7.49 mag

Voyager-speed travel 3,529,298 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

16.268 mas

Total Proper Motion

82.732 mas/yr

PM Right Ascension

-79.32 mas/yr

PM Declination

23.52 mas/yr

Galactic Cartesian (pc)

x = -0.107 · y = 0.096 · z = -0.990

Equatorial (J2000)

RA 138.10215° · Dec -81.76845°

Galactic ℓ, b

295.677° · -22.195°

Ecliptic λ, β

250.792° · -71.096°

HTM-20 index

-2090104085