Key parameters at a glance

A radius of 13.30 Earth radii
A mass of 794.57 Earth masses
Surface gravity around 4.49 g
An orbital period of 457.010 days
Semi-major axis 1.4900 AU
Distance from Earth 374.48 light-years
Earth Similarity Index 0.382
Travel time at Voyager 1 speed 6,603,942 years

HD 25723 b Planet Profile

Physical Specs

Radius

13.30 R⊕

Radius (Jupiter)

1.180 R♃

Mass

794.57 M⊕

Mass (Jupiter)

2.500 M♃

Density

1.86 g/cm³

Surface Gravity

4.49 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.382

HZ Position Unknown

Controversial No

Discovery

Year 2020

Method Radial Velocity

Facility Lick Observatory

Telescope Coude Auxiliary Telescope

Size rank in cohort

Rank by radius

#793of 1771

top 44.7%

This planet

13.30R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 12661 b 13.30 R⊕ HD 129445 b 13.30 R⊕ GJ 876 b 13.30 R⊕

Metric	Earth	HD 25723 b	Jupiter
Radius (R⊕)	1.00	13.30	11.21
Mass (M⊕)	1.00	794.57	317.83
Density (g/cm³)	5.51	1.86	1.33
Surface Gravity (g)	1.00	4.49	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	794.571 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 25723

HIP

HIP 19011

TIC

TIC 136888305

Gaia DR2

Gaia DR2 3188967248247014784

Gaia DR3

Gaia DR3 3188967248247014784

System

HD 25723

Percentile among Gas Giant cohort

Radius 13.300 R⊕ · percentile 53 / cohort 1771

Mass 794.571 M⊕ · percentile 61 / cohort 1747

Orbital period 457.01 d · percentile 66 / cohort 1533

Distance 114.82 pc · percentile 37 / cohort 1759

ESI 0.382 · percentile 80 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

457.010 days

Semi-major axis

1.4900 AU

Eccentricity

0.040

Inclination

— °

Year Length

A year here lasts about 1.25 Earth years on a nearly circular orbit at a mean orbital distance of 1.4900 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.382

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Tala Pinto et al. 2020

Instrument

Hamilton Echelle Spectrograph

Publication

2020-12

Observation locale

Ground

Host System: HD 25723

Spectral Class

K-type orange

Effective Temperature

4,766 K — cooler than the Sun (5,778 K)

Estimated Age

0.95 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

13.760 R☉

Stellar Mass

2.120 M☉

Metallicity [Fe/H]

-0.03

Extended Stellar Properties

Surface gravity (log g)

2.500 dex

Rotational v·sin i

3.66 km/s

Rotation period

190.21 days

Metallicity ratio

[Fe/H]

Distance

114.82 parsec

Light-years 374.48 ly

V-band magnitude

5.60 mag

Voyager-speed travel 6,603,942 yr

Multi-band Host Photometry — 10 bands

Astrometric Data

Parallax

8.683 mas

Total Proper Motion

23.059 mas/yr

PM Right Ascension

15.81 mas/yr

PM Declination

16.79 mas/yr

Galactic Cartesian (pc)

x = 0.471 · y = 0.854 · z = -0.221

Equatorial (J2000)

RA 61.09472° · Dec -12.79222°

Galactic ℓ, b

205.172° · -42.769°

Ecliptic λ, β

55.857° · -32.869°

HTM-20 index

1976985225

Similar Worlds

TOI-4010 e

Gas Giant · K-type orange

Radius 13.30 R⊕ · 578.9 ly

HD 94890 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 201.2 ly

NGC 2682 Sand 978 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 2,680.7 ly

HD 12661 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 123.4 ly

HD 108863 b

Gas Giant · K-type orange

Radius 13.30 R⊕ · 537.3 ly

Kepler-432 c

Gas Giant · K-type orange

Radius 13.30 R⊕ · 2,765.9 ly

Explore Related Categories

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