Key parameters at a glance

A radius of 13.80 Earth radii
A mass of 333.72 Earth masses
Surface gravity around 1.75 g
An orbital period of 148.600 days
Semi-major axis 0.6100 AU
Distance from Earth 1,227.11 light-years
Earth Similarity Index 0.312
Travel time at Voyager 1 speed 21,640,022 years

HD 216536 b Planet Profile

Physical Specs

Radius

13.80 R⊕

Radius (Jupiter)

1.230 R♃

Mass

333.72 M⊕

Mass (Jupiter)

1.050 M♃

Density

0.70 g/cm³

Surface Gravity

1.75 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.312

HZ Position Unknown

Controversial No

Discovery

Year 2015

Method Radial Velocity

Facility McDonald Observatory

Telescope 9.2 m Hobby-Eberly Telescope

Size rank in cohort

Rank by radius

#510of 1771

top 28.7%

This planet

13.80R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

GJ 179 b 13.80 R⊕ GJ 832 b 13.80 R⊕ HD 219415 b 13.80 R⊕

Metric	Earth	HD 216536 b	Jupiter
Radius (R⊕)	1.00	13.80	11.21
Mass (M⊕)	1.00	333.72	317.83
Density (g/cm³)	5.51	0.70	1.33
Surface Gravity (g)	1.00	1.75	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	333.722 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 216536

TIC

TIC 154487334

Gaia DR2

Gaia DR2 1935534781542402176

Gaia DR3

Gaia DR3 1935534781543619968

System

HD 216536

Percentile among Gas Giant cohort

Radius 13.800 R⊕ · percentile 70 / cohort 1771

Mass 333.722 M⊕ · percentile 36 / cohort 1747

Orbital period 148.60 d · percentile 56 / cohort 1533

Distance 376.23 pc · percentile 67 / cohort 1759

ESI 0.312 · percentile 61 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

148.600 days

Semi-major axis

0.6100 AU

Eccentricity

0.380

Inclination

— °

Year Length

A year here lasts approximately 148.60 Earth days (40.7% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.6100 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.312

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Niedzielski et al. 2015

Instrument

High Resolution Spectrograph

Publication

2015-04

Observation locale

Ground

Discovery cohort

Planets confirmed in 2015 at McDonald Observatory (3 shown).

HD 95127 b · Gas Giant BD+49 828 b · Gas Giant psi1 Dra B b · Gas Giant

Host System: HD 216536

Spectral Class

K-type orange

Effective Temperature

4,639 K — cooler than the Sun (5,778 K)

Estimated Age

3.80 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

9.830 R☉

Stellar Mass

0.810 M☉

Metallicity [Fe/H]

-0.17

Extended Stellar Properties

Surface gravity (log g)

2.360 dex

Systemic radial velocity

-16.45 km/s

Rotational v·sin i

2.60 km/s

Metallicity ratio

[Fe/H]

Distance

376.23 parsec

Light-years 1,227.11 ly

V-band magnitude

9.23 mag

Voyager-speed travel 21,640,022 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

2.629 mas

Total Proper Motion

3.777 mas/yr

PM Right Ascension

2.30 mas/yr

PM Declination

-3.00 mas/yr

Galactic Cartesian (pc)

x = 0.683 · y = -0.205 · z = 0.701

Equatorial (J2000)

RA 343.26656° · Dec 44.47773°

Galactic ℓ, b

101.690° · -13.457°

Ecliptic λ, β

7.517° · 46.430°

HTM-20 index

1097172640

Similar Worlds

HD 285507 b

Gas Giant · K-type orange

Radius 13.80 R⊕ · 146.9 ly

OGLE-2014-BLG-1760L b

Gas Giant · K-type orange

Radius 13.80 R⊕ · 23,013.6 ly

HD 99283 b

Gas Giant · K-type orange

Radius 13.80 R⊕ · 362.3 ly

Kepler-48 f

Gas Giant · K-type orange

Radius 13.80 R⊕ · 1,000.4 ly

HD 113538 c

Gas Giant · K-type orange

Radius 13.80 R⊕ · 53.1 ly

HD 1605 b

Gas Giant · K-type orange

Radius 13.80 R⊕ · 289.6 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries McDonald Observatory Mission K-type orange Hosts