Key parameters at a glance

A radius of 12.50 Earth radii
A mass of 2,892.10 Earth masses
Surface gravity around 18.51 g
An orbital period of 388.000 days
Semi-major axis 1.1000 AU
Distance from Earth 68.34 light-years
Earth Similarity Index 0.396
Travel time at Voyager 1 speed 1,205,172 years

HD 33564 b Planet Profile

Physical Specs

Radius

12.50 R⊕

Radius (Jupiter)

1.120 R♃

Mass

2,892.10 M⊕

Mass (Jupiter)

9.100 M♃

Density

8.14 g/cm³

Surface Gravity

18.51 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.396

HZ Position Unknown

Controversial No

Discovery

Year 2005

Method Radial Velocity

Facility Haute-Provence Observatory

Telescope 1.93 m Telescope

Size rank in cohort

Rank by radius

#1235of 1771

top 69.7%

This planet

12.50R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 156279 c 12.50 R⊕ HD 33283 b 12.50 R⊕ HD 156279 b 12.50 R⊕

Metric	Earth	HD 33564 b	Jupiter
Radius (R⊕)	1.00	12.50	11.21
Mass (M⊕)	1.00	2,892.10	317.83
Density (g/cm³)	5.51	8.14	1.33
Surface Gravity (g)	1.00	18.51	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	2,892.100 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 33564

HIP

HIP 25110

TIC

TIC 142103211

Gaia DR2

Gaia DR2 553480551264062848

Gaia DR3

Gaia DR3 553480551264062848

System

HD 33564

Percentile among Gas Giant cohort

Radius 12.500 R⊕ · percentile 28 / cohort 1771

Mass 2,892.100 M⊕ · percentile 86 / cohort 1747

Orbital period 388.00 d · percentile 64 / cohort 1533

Distance 20.95 pc · percentile 4 / cohort 1759

ESI 0.396 · percentile 85 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

388.000 days

Semi-major axis

1.1000 AU

Eccentricity

0.340

Inclination

— °

Year Length

A year here lasts about 1.06 Earth years on a highly eccentric trajectory at a mean orbital distance of 1.1000 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.396

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Galland et al. 2005

Instrument

ELODIE Spectrograph

Publication

2005-12

Observation locale

Ground

Discovery cohort

Planets confirmed in 2005 at Haute-Provence Observatory (3 shown).

HD 149143 b · Gas Giant HD 189733 b · Gas Giant HD 118203 b · Gas Giant

Host System: HD 33564

Spectral Class

F-type yellow-white

Effective Temperature

6,250 K — hotter than the Sun (5,778 K)

Estimated Age

3.00 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.437 R☉

Stellar Mass

1.250 M☉

Metallicity [Fe/H]

-0.12

Extended Stellar Properties

Surface gravity (log g)

4.000 dex

Stellar density

0.572 g/cm³

Systemic radial velocity

0.11 km/s

Rotational v·sin i

12.00 km/s

Metallicity ratio

[Fe/H]

Distance

20.95 parsec

Light-years 68.34 ly

V-band magnitude

5.10 mag

Voyager-speed travel 1,205,172 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

47.698 mas

Total Proper Motion

180.074 mas/yr

PM Right Ascension

-78.39 mas/yr

PM Declination

162.12 mas/yr

Galactic Cartesian (pc)

x = 0.030 · y = 0.184 · z = 0.982

Equatorial (J2000)

RA 80.63790° · Dec 79.23185°

Galactic ℓ, b

133.734° · 22.648°

Ecliptic λ, β

86.889° · 55.894°

HTM-20 index

893513520