Key parameters at a glance

A radius of 3.17 Earth radii
A mass of 10.20 Earth masses
Surface gravity around 1.02 g
An orbital period of 5.235 days
Semi-major axis 0.0530 AU
Distance from Earth 84.33 light-years
Earth Similarity Index 0.621
Travel time at Voyager 1 speed 1,487,158 years
Almost certainly tidally locked to its host star given the close orbit

GJ 160.2 b Planet Profile

Physical Specs

Radius

3.17 R⊕

Radius (Jupiter)

0.283 R♃

Mass

10.20 M⊕

Mass (Jupiter)

0.032 M♃

Density

1.76 g/cm³

Surface Gravity

1.02 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.621

HZ Position Unknown

Controversial No

Discovery

Year 2014

Method Radial Velocity

Facility Multiple Observatories

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#378of 1978

top 19.1%

This planet

3.17R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-253 d 3.17 R⊕ KMT-2021-BLG-2609L b 3.17 R⊕ Kepler-774 b 3.17 R⊕

Metric	Earth	GJ 160.2 b	Jupiter
Radius (R⊕)	1.00	3.17	11.21
Mass (M⊕)	1.00	10.20	317.83
Density (g/cm³)	5.51	1.76	1.33
Surface Gravity (g)	1.00	1.02	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	10.200 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HIP

HIP 19165

TIC

TIC 178351350

Gaia DR2

Gaia DR2 5091077112523802112

Gaia DR3

Gaia DR3 5091077112524265344

System

GJ 160.2

Percentile among Sub-Neptune cohort

Radius 3.170 R⊕ · percentile 81 / cohort 1978

Mass 10.200 M⊕ · percentile 74 / cohort 1978

Orbital period 5.24 d · percentile 13 / cohort 1946

Distance 25.86 pc · percentile 6 / cohort 1975

ESI 0.621 · percentile 85 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

5.235 days

Semi-major axis

0.0530 AU

Eccentricity

0.060

Inclination

— °

Year Length

A year here lasts approximately 5.24 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0530 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.621

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Tuomi et al. 2014

Instrument

Multiple Instruments

Publication

2014-06

Observation locale

Ground

Discovery cohort

Planets confirmed in 2014 at Multiple Observatories (12 shown).

GJ 682 b · Super-Earth GJ 180 c · Sub-Neptune GJ 180 b · Sub-Neptune GJ 682 c · Sub-Neptune GJ 422 b · Sub-Neptune GJ 27.1 b · Sub-Neptune GJ 433 c · Neptune-like HIP 105854 b · Gas Giant TYC 1422-614-1 c · Gas Giant TYC 1422-614-1 b · Gas Giant HD 141399 c · Gas Giant HD 141399 d · Gas Giant

Host System: GJ 160.2

Spectral Class

M-type red dwarf

Effective Temperature

4,347 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.655 R☉

Stellar Mass

0.690 M☉

Metallicity [Fe/H]

—

Extended Stellar Properties

Surface gravity (log g)

4.613 dex

Stellar density

3.130 g/cm³

Systemic radial velocity

24.87 km/s

Rotation period

43.60 days

Distance

25.86 parsec

Light-years 84.33 ly

V-band magnitude

9.70 mag

Voyager-speed travel 1,487,158 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

38.647 mas

Total Proper Motion

780.823 mas/yr

PM Right Ascension

53.09 mas/yr

PM Declination

-779.02 mas/yr

Galactic Cartesian (pc)

x = 0.444 · y = 0.822 · z = -0.356

Equatorial (J2000)

RA 61.64542° · Dec -20.85647°

Galactic ℓ, b

215.873° · -45.260°

Ecliptic λ, β

54.087° · -40.826°

HTM-20 index

-562829859