Key parameters at a glance

A radius of 14.00 Earth radii
A mass of 216.12 Earth masses
Surface gravity around 1.10 g
An orbital period of 1,313.000 days
Semi-major axis 2.4500 AU
Distance from Earth 180.82 light-years
Earth Similarity Index 0.278
Travel time at Voyager 1 speed 3,188,782 years

HD 8535 b Planet Profile

Physical Specs

Radius

14.00 R⊕

Radius (Jupiter)

1.250 R♃

Mass

216.12 M⊕

Mass (Jupiter)

0.680 M♃

Density

0.43 g/cm³

Surface Gravity

1.10 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.278

HZ Position Unknown

Controversial No

Discovery

Year 2010

Method Radial Velocity

Facility La Silla Observatory

Telescope 3.6 m ESO Telescope

Size rank in cohort

Rank by radius

#415of 1771

top 23.4%

This planet

14.00R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 9446 b 14.00 R⊕ HD 156411 b 14.00 R⊕ HD 224693 b 14.00 R⊕

Metric	Earth	HD 8535 b	Jupiter
Radius (R⊕)	1.00	14.00	11.21
Mass (M⊕)	1.00	216.12	317.83
Density (g/cm³)	5.51	0.43	1.33
Surface Gravity (g)	1.00	1.10	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	216.124 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 8535

HIP

HIP 6511

TIC

TIC 41862035

Gaia DR2

Gaia DR2 4984244302162168704

Gaia DR3

Gaia DR3 4984244302162168704

System

HD 8535

Percentile among Gas Giant cohort

Radius 14.000 R⊕ · percentile 74 / cohort 1771

Mass 216.124 M⊕ · percentile 23 / cohort 1747

Orbital period 1,313.00 d · percentile 81 / cohort 1533

Distance 55.44 pc · percentile 23 / cohort 1759

ESI 0.278 · percentile 52 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

1,313.000 days

Semi-major axis

2.4500 AU

Eccentricity

0.150

Inclination

— °

Year Length

A year here lasts about 3.59 Earth years on a mildly elliptical path at a mean orbital distance of 2.4500 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.278

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Naef et al. 2010

Instrument

HARPS Spectrograph

Publication

2010-11

Observation locale

Ground

Discovery cohort

Planets confirmed in 2010 at La Silla Observatory (12 shown).

GJ 3634 b · Sub-Neptune HD 10180 f · Neptune-like HD 10180 e · Neptune-like GJ 676 A b · Gas Giant HD 204313 b · Gas Giant HD 28254 b · Gas Giant HD 1690 b · Gas Giant HD 10180 h · Neptune-like HD 113538 c · Gas Giant HD 25171 b · Gas Giant HD 44219 b · Gas Giant HD 43197 b · Gas Giant

Host System: HD 8535

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

6,136 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.190 R☉

Stellar Mass

1.130 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.460 dex

Stellar density

0.809 g/cm³

Systemic radial velocity

2.46 km/s

Rotational v·sin i

1.41 km/s

Activity index (log R'HK)

-5.000

Metallicity ratio

[Fe/H]

Distance

55.44 parsec

Light-years 180.82 ly

V-band magnitude

7.70 mag

Voyager-speed travel 3,188,782 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

18.009 mas

Total Proper Motion

90.554 mas/yr

PM Right Ascension

57.64 mas/yr

PM Declination

-69.84 mas/yr

Galactic Cartesian (pc)

x = 0.702 · y = 0.268 · z = -0.660

Equatorial (J2000)

RA 20.90548° · Dec -41.27010°

Galactic ℓ, b

279.920° · -74.389°

Ecliptic λ, β

358.665° · -45.387°

HTM-20 index

545778835