Key parameters at a glance

A radius of 14.30 Earth radii
A mass of 137.62 Earth masses
Surface gravity around 0.67 g
An orbital period of 44.073 days
Semi-major axis 0.2370 AU
Distance from Earth 113.68 light-years
Earth Similarity Index 0.243
Travel time at Voyager 1 speed 2,004,724 years

HD 45652 b Planet Profile

Physical Specs

Radius

14.30 R⊕

Radius (Jupiter)

1.280 R♃

Mass

137.62 M⊕

Mass (Jupiter)

0.433 M♃

Density

0.26 g/cm³

Surface Gravity

0.67 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.243

HZ Position Unknown

Controversial No

Discovery

Year 2008

Method Radial Velocity

Facility Haute-Provence Observatory

Telescope 1.93 m Telescope

Size rank in cohort

Rank by radius

#301of 1771

top 16.9%

This planet

14.30R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 133131 A c 14.30 R⊕ HIP 65407 b 14.30 R⊕ HD 30669 b 14.30 R⊕

Metric	Earth	HD 45652 b	Jupiter
Radius (R⊕)	1.00	14.30	11.21
Mass (M⊕)	1.00	137.62	317.83
Density (g/cm³)	5.51	0.26	1.33
Surface Gravity (g)	1.00	0.67	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	137.620 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 45652

HIP

HIP 30905

TIC

TIC 206948365

Gaia DR2

Gaia DR2 3327980255695313792

Gaia DR3

Gaia DR3 3327980255695313792

System

HD 45652

Percentile among Gas Giant cohort

Radius 14.300 R⊕ · percentile 82 / cohort 1771

Mass 137.620 M⊕ · percentile 10 / cohort 1747

Orbital period 44.07 d · percentile 50 / cohort 1533

Distance 34.85 pc · percentile 10 / cohort 1759

ESI 0.243 · percentile 42 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

44.073 days

Semi-major axis

0.2370 AU

Eccentricity

0.607

Inclination

— °

Year Length

A year here lasts approximately 44.07 Earth days (12.1% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.2370 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.243

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Santos et al. 2008

Instrument

ELODIE Spectrograph

Publication

2008-08

Observation locale

Ground

Host System: HD 45652

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,294 K — cooler than the Sun (5,778 K)

Estimated Age

8.40 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.940 R☉

Stellar Mass

0.920 M☉

Metallicity [Fe/H]

0.26

Extended Stellar Properties

Surface gravity (log g)

4.200 dex

Stellar density

1.461 g/cm³

Systemic radial velocity

-5.12 km/s

Rotational v·sin i

2.00 km/s

Metallicity ratio

[Fe/H]

Distance

34.85 parsec

Light-years 113.68 ly

V-band magnitude

8.10 mag

Voyager-speed travel 2,004,724 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

28.662 mas

Total Proper Motion

215.607 mas/yr

PM Right Ascension

206.33 mas/yr

PM Declination

-62.57 mas/yr

Galactic Cartesian (pc)

x = -0.125 · y = 0.974 · z = 0.190

Equatorial (J2000)

RA 97.30587° · Dec 10.93362°

Galactic ℓ, b

200.685° · 0.110°

Ecliptic λ, β

97.339° · -12.320°

HTM-20 index

1972511238

Observation Record

Photometric series

RV measurements

Archive notes