Confirmed Exoplanet Discovered 2016

2MASS J22362452+4751425 b

A gas giant orbiting the k-type orange 2MASS J22362452+4751425, located approximately 226.9 light-years from Earth.

Key parameters at a glance

  • A radius of 12.30 Earth radii
  • A mass of 3,972.88 Earth masses
  • Surface gravity around 26.26 g
  • Semi-major axis 230.0000 AU
  • Distance from Earth 226.92 light-years
  • Earth Similarity Index 0.352
  • Travel time at Voyager 1 speed 4,001,713 years

2MASS J22362452+4751425 b Planet Profile

Physical Specs

Radius
12.30 R⊕
Radius (Jupiter)
1.100 R♃
Mass
3,972.88 M⊕
Mass (Jupiter)
12.500 M♃
Density
11.70 g/cm³
Surface Gravity
26.26 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.352
HZ Position Unknown
Controversial No

Discovery

Year 2016
Method Imaging
Facility W. M. Keck Observatory
Telescope 10 m Keck II Telescope

Size rank in cohort

Rank by radius

#1349of 1771

top 76.1%

This planet

12.30R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HAT-P-13 c 12.30 R⊕ HD 22781 b 12.30 R⊕ CHXR 73 b 12.30 R⊕
Metric Earth 2MASS J22362452+4751425 b Jupiter
Radius (R⊕)1.0012.3011.21
Mass (M⊕)1.003,972.88317.83
Density (g/cm³)5.5111.701.33
Surface Gravity (g)1.0026.262.53
Insolation (S⊕)1.00—0.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 3,972.875 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 200532605

Gaia DR2

Gaia DR2 1986772848034988544

Gaia DR3

Gaia DR3 1986772848034988544

System

2MASS J22362452+4751425

Percentile among Gas Giant cohort

Radius 12.300 R⊕ · percentile 22 / cohort 1771
Mass 3,972.875 M⊕ · percentile 91 / cohort 1747
Distance 69.57 pc · percentile 28 / cohort 1759
ESI 0.352 · percentile 72 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
— days
Semi-major axis
230.0000 AU
Eccentricity
—
Inclination
— °

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

—

 

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.352

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Bowler et al. 2017

Instrument

NIRC2 Camera

Publication

2017-01

Observation locale

Ground

Host System: 2MASS J22362452+4751425

Spectral Class

K-type orange

Effective Temperature

4,045 K — cooler than the Sun (5,778 K)

Estimated Age

0.12 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.641 R☉

Stellar Mass

0.600 M☉

Metallicity [Fe/H]

—

Extended Stellar Properties

Surface gravity (log g)

4.624 dex

Stellar density

3.370 g/cm³

Systemic radial velocity

-21.50 km/s

Distance
69.57 parsec
Light-years 226.92 ly
V-band magnitude
12.37 mag
Voyager-speed travel 4,001,713 yr

Multi-band Host Photometry — 14 bands

8.713.713.73B12.37V11.95Gaia11.13TESS13.10Sloan g11.91Sloan r11.32Sloan i9.98J9.34H9.15K9.06W19.09W28.95W38.73W4

Astrometric Data

Parallax

14.344 mas

Total Proper Motion

69.890 mas/yr

PM Right Ascension

62.89 mas/yr

PM Declination

-30.48 mas/yr

Galactic Cartesian (pc)

x = 0.627 · y = -0.239 · z = 0.742

Equatorial (J2000)

RA 339.10259° · Dec 47.86168°

Galactic ℓ, b

100.748° · -9.109°

Ecliptic λ, β

6.855° · 50.853°

HTM-20 index

-711475277

Similar Worlds

SR 12 AB c

Gas Giant · K-type orange

Radius 12.30 R⊕ · 366.3 ly

HD 158996 b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 925.2 ly

11 UMi b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 408.7 ly

HD 22781 b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 106.3 ly

HD 4760 b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 1,754.3 ly

AB Pic b

Gas Giant · K-type orange

Radius 12.30 R⊕ · 163.2 ly

Explore Related Categories

Gas Giant Planets Imaging Discoveries W. M. Keck Observatory Mission K-type orange Hosts