Key parameters at a glance

A radius of 12.80 Earth radii
A mass of 1,737.89 Earth masses
Surface gravity around 10.61 g
An orbital period of 39.446 days
Semi-major axis 0.2280 AU
Distance from Earth 227.43 light-years
Earth Similarity Index 0.435
Travel time at Voyager 1 speed 4,010,766 years

HD 72892 b Planet Profile

Physical Specs

Radius

12.80 R⊕

Radius (Jupiter)

1.140 R♃

Mass

1,737.89 M⊕

Mass (Jupiter)

5.468 M♃

Density

4.55 g/cm³

Surface Gravity

10.61 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.435

HZ Position Unknown

Controversial No

Discovery

Year 2016

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#1063of 1771

top 60.0%

This planet

12.80R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 240210 b 12.80 R⊕ HD 29985 b 12.80 R⊕ HD 148164 c 12.80 R⊕

Metric	Earth	HD 72892 b	Jupiter
Radius (R⊕)	1.00	12.80	11.21
Mass (M⊕)	1.00	1,737.89	317.83
Density (g/cm³)	5.51	4.55	1.33
Surface Gravity (g)	1.00	10.61	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	1,737.886 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 72892

HIP

HIP 42098

TIC

TIC 405344271

Gaia DR2

Gaia DR2 5722585739105853184

Gaia DR3

Gaia DR3 5722585739105853184

System

HD 72892

Percentile among Gas Giant cohort

Radius 12.800 R⊕ · percentile 37 / cohort 1771

Mass 1,737.886 M⊕ · percentile 77 / cohort 1747

Orbital period 39.45 d · percentile 50 / cohort 1533

Distance 69.73 pc · percentile 28 / cohort 1759

ESI 0.435 · percentile 96 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

39.446 days

Semi-major axis

0.2280 AU

Eccentricity

0.419

Inclination

— °

Year Length

A year here lasts approximately 39.45 Earth days (10.8% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.2280 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.435

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Jenkins et al. 2017

Instrument

Multiple Instruments

Publication

2017-04

Observation locale

Ground

Discovery cohort

Planets confirmed in 2016 at Multiple Observatories (12 shown).

HD 42618 b · Sub-Neptune HD 164922 c · Sub-Neptune HD 224538 b · Gas Giant HD 30177 c · Gas Giant Kepler-56 d · Gas Giant HD 147873 b · Gas Giant HIP 8541 b · Gas Giant HD 68402 b · Gas Giant HD 86950 b · Gas Giant HD 165155 b · Gas Giant rho CrB c · Neptune-like HIP 74890 b · Gas Giant

Host System: HD 72892

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,688 K — cooler than the Sun (5,778 K)

Estimated Age

8.00 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.220 R☉

Stellar Mass

1.010 M☉

Metallicity [Fe/H]

0.25

Extended Stellar Properties

Surface gravity (log g)

4.270 dex

Stellar density

0.907 g/cm³

Systemic radial velocity

-38.64 km/s

Rotational v·sin i

2.70 km/s

Metallicity ratio

[Fe/H]

Distance

69.73 parsec

Light-years 227.43 ly

V-band magnitude

8.83 mag

Voyager-speed travel 4,010,766 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

14.312 mas

Total Proper Motion

193.765 mas/yr

PM Right Ascension

92.24 mas/yr

PM Declination

-170.40 mas/yr

Galactic Cartesian (pc)

x = -0.606 · y = 0.756 · z = -0.250

Equatorial (J2000)

RA 128.71956° · Dec -14.45743°

Galactic ℓ, b

238.387° · 15.192°

Ecliptic λ, β

135.562° · -31.977°

HTM-20 index

378693992