Key parameters at a glance

A radius of 5.11 Earth radii
A mass of 22.90 Earth masses
Surface gravity around 0.88 g
An orbital period of 17.818 days
Semi-major axis 0.1120 AU
Distance from Earth 34.34 light-years
Earth Similarity Index 0.470
Travel time at Voyager 1 speed 605,649 years
Almost certainly tidally locked to its host star given the close orbit

HIP 48714 b Planet Profile

Physical Specs

Radius

5.11 R⊕

Radius (Jupiter)

0.456 R♃

Mass

22.90 M⊕

Mass (Jupiter)

0.072 M♃

Density

0.94 g/cm³

Surface Gravity

0.88 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.470

HZ Position Unknown

Controversial No

Discovery

Year 2020

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#366of 574

top 63.6%

This planet

5.11R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

Kepler-1314 b 5.11 R⊕ 61 Vir d 5.11 R⊕ Kepler-818 b 5.11 R⊕

Metric	Earth	HIP 48714 b	Jupiter
Radius (R⊕)	1.00	5.11	11.21
Mass (M⊕)	1.00	22.90	317.83
Density (g/cm³)	5.51	0.94	1.33
Surface Gravity (g)	1.00	0.88	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	22.900 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HIP

HIP 48714

TIC

TIC 287165117

Gaia DR2

Gaia DR2 1051547052218220160

Gaia DR3

Gaia DR3 1051547052218220160

System

HIP 48714

Percentile among Neptune-like cohort

Radius 5.110 R⊕ · percentile 36 / cohort 574

Mass 22.900 M⊕ · percentile 37 / cohort 574

Orbital period 17.82 d · percentile 49 / cohort 524

Distance 10.53 pc · percentile 2 / cohort 572

ESI 0.470 · percentile 85 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

17.818 days

Semi-major axis

0.1120 AU

Eccentricity

0.500

Inclination

— °

Year Length

A year here lasts approximately 17.82 Earth days (4.9% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.1120 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.470

0 = alien, 1 = Earth-identical

Insufficient insolation data. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Feng et al. 2020

Instrument

Multiple Instruments

Publication

2020-10

Observation locale

Ground

Discovery cohort

Planets confirmed in 2020 at Multiple Observatories (12 shown).

GJ 3473 c · Sub-Neptune HIP 38594 b · Sub-Neptune HD 216520 c · Sub-Neptune HD 216520 b · Sub-Neptune HIP 107772 b · Sub-Neptune GJ 480 b · Sub-Neptune HIP 4845 b · Sub-Neptune HD 190007 b · Neptune-like GJ 687 c · Neptune-like GJ 2056 b · Neptune-like HD 238090 b · Sub-Neptune HIP 38594 c · Neptune-like

Host System: HIP 48714

Spectral Class

M-type red dwarf

Effective Temperature

4,016 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.595 R☉

Stellar Mass

0.580 M☉

Metallicity [Fe/H]

—

Extended Stellar Properties

Surface gravity (log g)

4.655 dex

Stellar density

3.902 g/cm³

Systemic radial velocity

14.99 km/s

Distance

10.53 parsec

Light-years 34.34 ly

V-band magnitude

8.99 mag

Voyager-speed travel 605,649 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

94.940 mas

Total Proper Motion

658.051 mas/yr

PM Right Ascension

-304.05 mas/yr

PM Declination

-583.60 mas/yr

Galactic Cartesian (pc)

x = -0.392 · y = 0.235 · z = 0.889

Equatorial (J2000)

RA 149.03327° · Dec 62.78595°

Galactic ℓ, b

149.222° · 44.358°

Ecliptic λ, β

124.539° · 46.246°

HTM-20 index

976917139