Key parameters at a glance

A radius of 8.38 Earth radii
A mass of 53.00 Earth masses
Surface gravity around 0.75 g
An orbital period of 125.940 days
Semi-major axis 0.4350 AU
Distance from Earth 66.11 light-years
Earth Similarity Index 0.344
Travel time at Voyager 1 speed 1,165,853 years

BD-06 1339 c Planet Profile

Physical Specs

Radius

8.38 R⊕

Radius (Jupiter)

0.747 R♃

Mass

53.00 M⊕

Mass (Jupiter)

0.170 M♃

Density

0.50 g/cm³

Surface Gravity

0.75 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.344

HZ Position Unknown

Controversial No

Discovery

Year 2013

Method Radial Velocity

Facility La Silla Observatory

Telescope 3.6 m ESO Telescope

Size rank in cohort

Rank by radius

#131of 574

top 22.6%

This planet

8.38R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

Kepler-539 b 8.37 R⊕ K2-127 b 8.37 R⊕ OGLE-2012-BLG-0838L b 8.39 R⊕

Metric	Earth	BD-06 1339 c	Jupiter
Radius (R⊕)	1.00	8.38	11.21
Mass (M⊕)	1.00	53.00	317.83
Density (g/cm³)	5.51	0.50	1.33
Surface Gravity (g)	1.00	0.75	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	53.000 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HIP

HIP 27803

TIC

TIC 66914642

Gaia DR2

Gaia DR2 3022099969137163904

Gaia DR3

Gaia DR3 3022099969137163904

System

BD-06 1339

Percentile among Neptune-like cohort

Radius 8.380 R⊕ · percentile 77 / cohort 574

Mass 53.000 M⊕ · percentile 73 / cohort 574

Orbital period 125.94 d · percentile 84 / cohort 524

Distance 20.27 pc · percentile 6 / cohort 572

ESI 0.344 · percentile 62 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

125.940 days

Semi-major axis

0.4350 AU

Eccentricity

0.310

Inclination

— °

Year Length

A year here lasts approximately 125.94 Earth days (34.5% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.4350 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.344

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Lo Curto et al. 2013

Instrument

HARPS Spectrograph

Publication

2013-03

Observation locale

Ground

Discovery cohort

Planets confirmed in 2013 at La Silla Observatory (10 shown).

GJ 667 C c · Super-Earth GJ 163 c · Sub-Neptune HD 40307 f · Sub-Neptune GJ 163 b · Sub-Neptune HD 109271 b · Neptune-like HD 109271 c · Neptune-like POTS-1 b · Gas Giant GJ 163 d · Neptune-like HD 65216 c · Gas Giant HD 103774 b · Gas Giant

Host System: BD-06 1339

Spectral Class

K-type orange

Effective Temperature

4,324 K — cooler than the Sun (5,778 K)

Estimated Age

4.40 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.686 R☉

Stellar Mass

0.700 M☉

Metallicity [Fe/H]

-0.14

Extended Stellar Properties

Surface gravity (log g)

4.740 dex

Stellar density

2.747 g/cm³

Systemic radial velocity

23.63 km/s

Rotational v·sin i

0.57 km/s

Metallicity ratio

[Fe/H]

Distance

20.27 parsec

Light-years 66.11 ly

V-band magnitude

9.70 mag

Voyager-speed travel 1,165,853 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

49.306 mas

Total Proper Motion

346.723 mas/yr

PM Right Ascension

-1.05 mas/yr

PM Declination

-346.72 mas/yr

Galactic Cartesian (pc)

x = 0.030 · y = 0.994 · z = -0.104

Equatorial (J2000)

RA 88.25118° · Dec -5.99634°

Galactic ℓ, b

211.658° · -15.716°

Ecliptic λ, β

87.999° · -29.424°

HTM-20 index

1518553124

Similar Worlds

K2-127 b

Neptune-like · K-type orange

Radius 8.37 R⊕ · 2,315.7 ly

GJ 414 A c

Neptune-like · K-type orange

Radius 8.40 R⊕ · 38.8 ly

Kepler-16 b

Neptune-like · K-type orange

Radius 8.45 R⊕ · 244.9 ly

HD 27894 c

Neptune-like · K-type orange

Radius 8.24 R⊕ · 142.9 ly

HD 3765 b

Neptune-like · K-type orange

Radius 8.56 R⊕ · 58.5 ly

HATS-49 b

Neptune-like · K-type orange

Radius 8.57 R⊕ · 1,058.1 ly

Explore Related Categories

Neptune-like Planets Radial Velocity Discoveries La Silla Observatory Mission K-type orange Hosts