Confirmed Exoplanet Discovered 2017

HD 113996 b

A gas giant orbiting the k-type orange HD 113996, located approximately 379.4 light-years from Earth.

Key parameters at a glance

  • A radius of 12.70 Earth radii
  • A mass of 2,002.33 Earth masses
  • Surface gravity around 12.41 g
  • An orbital period of 610.200 days
  • Semi-major axis 1.6000 AU
  • Distance from Earth 379.43 light-years
  • Earth Similarity Index 0.442
  • Travel time at Voyager 1 speed 6,691,253 years

HD 113996 b Planet Profile

Physical Specs

Radius
12.70 R⊕
Radius (Jupiter)
1.140 R♃
Mass
2,002.33 M⊕
Mass (Jupiter)
6.300 M♃
Density
5.37 g/cm³
Surface Gravity
12.41 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.442
HZ Position Unknown
Controversial No

Discovery

Year 2017
Method Radial Velocity
Facility Bohyunsan Optical Astronomical Observatory
Telescope 1.8 m Telescope

Size rank in cohort

Rank by radius

#1130of 1771

top 63.7%

This planet

12.70R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth HD 113996 b Jupiter
Radius (R⊕)1.0012.7011.21
Mass (M⊕)1.002,002.33317.83
Density (g/cm³)5.515.371.33
Surface Gravity (g)1.0012.412.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Minimum mass (M sin i) 2,002.329 M⊕ Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD

HD 113996

HIP

HIP 64022

TIC

TIC 328997091

Gaia DR2

Gaia DR2 1460876573902016768

Gaia DR3

Gaia DR3 1460876573902483328

System

HD 113996

Percentile among Gas Giant cohort

Radius 12.700 R⊕ · percentile 34 / cohort 1771
Mass 2,002.329 M⊕ · percentile 80 / cohort 1747
Orbital period 610.20 d · percentile 71 / cohort 1533
Distance 116.33 pc · percentile 38 / cohort 1759
ESI 0.442 · percentile 98 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
610.200 days
Semi-major axis
1.6000 AU
Eccentricity
0.280
Inclination
°

Year Length

A year here lasts about 1.67 Earth years on a mildly elliptical path at a mean orbital distance of 1.6000 AU.

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.442

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Jeong et al. 2018

Instrument

BOES Echelle Spectrograph

Publication

2018-02

Observation locale

Ground

Host System: HD 113996

Spectral Class

K-type orange

Effective Temperature

4,181 K — cooler than the Sun (5,778 K)

Estimated Age

3.24 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

25.110 R☉

Stellar Mass

1.490 M☉

Metallicity [Fe/H]

0.13

Extended Stellar Properties

Surface gravity (log g)

1.860 dex

Systemic radial velocity

-15.72 km/s

Rotational v·sin i

3.30 km/s

Metallicity ratio

[Fe/H]

Distance
116.33 parsec
Light-years 379.43 ly
V-band magnitude
4.77 mag
Voyager-speed travel 6,691,253 yr

Multi-band Host Photometry — 11 bands

-1.36.36.26B4.77V4.22Gaia3.41TESS2.37J1.63H1.49K-1.29W1-0.36W21.30W31.16W4

Astrometric Data

Parallax

8.595 mas

Total Proper Motion

78.932 mas/yr

PM Right Ascension

35.45 mas/yr

PM Declination

-70.52 mas/yr

Galactic Cartesian (pc)

x = -0.848 · y = -0.256 · z = 0.464

Equatorial (J2000)

RA 196.79487° · Dec 27.62444°

Galactic ℓ, b

41.915° · 86.470°

Ecliptic λ, β

183.400° · 31.820°

HTM-20 index

515182216

Similar Worlds

Explore Related Categories