Confirmed Exoplanet Discovered 2022

HD 80883 b

A gas giant orbiting the k-type orange HD 80883, located approximately 112.9 light-years from Earth.

Key parameters at a glance

  • A radius of 12.80 Earth radii
  • A mass of 1,748.06 Earth masses
  • Surface gravity around 10.67 g
  • An orbital period of 6,383.784 days
  • Semi-major axis 6.4620 AU
  • Distance from Earth 112.85 light-years
  • Earth Similarity Index 0.435
  • Travel time at Voyager 1 speed 1,990,172 years

HD 80883 b Planet Profile

Physical Specs

Radius
12.80 R⊕
Radius (Jupiter)
1.140 R♃
Mass
1,748.06 M⊕
Mass (Jupiter)
5.500 M♃
Density
4.58 g/cm³
Surface Gravity
10.67 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.435
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

Metric Earth HD 80883 b Jupiter
Radius (R⊕)1.0012.8011.21
Mass (M⊕)1.001,748.06317.83
Density (g/cm³)5.514.581.33
Surface Gravity (g)1.0010.672.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 1,748.056 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

HD

HD 80883

TIC

TIC 386899832

Gaia DR2

Gaia DR2 5300239064919282816

Gaia DR3

Gaia DR3 5300239064919282816

System

HD 80883

Percentile among Gas Giant cohort

Radius 12.800 R⊕ · percentile 37 / cohort 1771
Mass 1,748.056 M⊕ · percentile 77 / cohort 1747
Orbital period 6,383.78 d · percentile 94 / cohort 1533
Distance 34.60 pc · percentile 10 / cohort 1759
ESI 0.435 · percentile 96 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
6,383.784 days
Semi-major axis
6.4620 AU
Eccentricity
0.203
Inclination
141.31 °

Year Length

A year here lasts about 17.48 Earth years on a mildly elliptical path at a mean orbital distance of 6.4620 AU.

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.435

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Feng et al. 2022

Instrument

Multiple Instruments

Publication

2022-09

Observation locale

Ground

Host System: HD 80883

Spectral Class

K-type orange

Effective Temperature

5,178 K — cooler than the Sun (5,778 K)

Estimated Age

Stellar Radius

0.815 R☉

Stellar Mass

0.880 M☉

Metallicity [Fe/H]

-0.26

Extended Stellar Properties

Surface gravity (log g)

4.560 dex

Stellar density

2.293 g/cm³

Metallicity ratio

[M/H]

Distance
34.60 parsec
Light-years 112.85 ly
V-band magnitude
8.60 mag
Voyager-speed travel 1,990,172 yr

Multi-band Host Photometry — 11 bands

6.39.49.41B8.60V8.36Gaia7.82TESS7.02J6.63H6.47K6.41W16.34W26.43W36.38W4

Astrometric Data

Parallax

28.872 mas

Total Proper Motion

116.249 mas/yr

PM Right Ascension

-80.19 mas/yr

PM Declination

-84.16 mas/yr

Galactic Cartesian (pc)

x = -0.389 · y = 0.327 · z = -0.861

Equatorial (J2000)

RA 139.93318° · Dec -59.47808°

Galactic ℓ, b

278.842° · -6.910°

Ecliptic λ, β

186.270° · -66.983°

HTM-20 index

1207053551

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