Key parameters at a glance

A radius of 14.57 Earth radii
A mass of 165.27 Earth masses
Surface gravity around 0.78 g
An orbital period of 7.846 days
Semi-major axis 0.0794 AU
Equilibrium temperature 1,313 K (1040 °C)
Distance from Earth 785.14 light-years
Earth Similarity Index 0.083
Travel time at Voyager 1 speed 13,845,984 years

1 sibling around KELT-6

KELT-6 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
KELT-6 b this	Gas Giant	14.57	165.27	7.846	1,313	2014
KELT-6 c	Gas Giant	13.00	1,179.15	1,276.000	—	2015

KELT-6 b Planet Profile

Physical Specs

Radius

14.57 R⊕

Radius (Jupiter)

1.300 R♃

Mass

165.27 M⊕

Mass (Jupiter)

0.520 M♃

Density

0.27 g/cm³

Surface Gravity

0.78 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.083

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility KELT

Telescope Mamiya 645 80mm f/1.9

Size rank in cohort

Rank by radius

#270of 1771

top 15.2%

This planet

14.57R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HATS-16 b 14.57 R⊕ WASP-135 b 14.57 R⊕ K2-132 b 14.57 R⊕

Metric	Earth	KELT-6 b	Jupiter
Radius (R⊕)	1.00	14.57	11.21
Mass (M⊕)	1.00	165.27	317.83
Density (g/cm³)	5.51	0.27	1.33
Surface Gravity (g)	1.00	0.78	2.53
Insolation (S⊕)	1.00	718.19	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	165.272 M⊕	Direct mass measurement (not derived).
Minimum mass (M sin i)	140.481 M⊕	Lower bound from radial-velocity fitting.
Computed mass	141.000 M⊕	Model-computed mass (e.g. from mass-radius relation).

Star Catalogue Identifiers

TIC

TIC 165987272

Gaia DR2

Gaia DR2 1464700950221781504

Gaia DR3

Gaia DR3 1464700950221781504

System

KELT-6

Percentile among Gas Giant cohort

Radius 14.572 R⊕ · percentile 84 / cohort 1771

Mass 165.272 M⊕ · percentile 14 / cohort 1747

Orbital period 7.85 d · percentile 42 / cohort 1533

Distance 240.73 pc · percentile 55 / cohort 1759

ESI 0.083 · percentile 19 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

7.846 days

Semi-major axis

0.0794 AU

Eccentricity

0.220

Inclination

88.81 °

Year Length

A year here lasts approximately 7.85 Earth days (2.1% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0794 AU.

Transit Fingerprint

Depth

0.600 %

Duration

5.830 h

Impact parameter b

0.430

Rp / R★

0.076400

Transit midpoint (BJD)

2,457,218.6587

Photometric dip

Transit produces a flux drop of 6,000 ppm lasting ≈ 5.83 h.

Extended Orbital Architecture

Planet / star radius ratio

0.076400

Semi-major axis / stellar radius

10.830

Impact parameter (b)

0.430

RV semi-amplitude (K)

42.800 m/s

Transit mid-time (BJD)

2,457,218.6587

Long. of periastron (ω)

80.00°

Sky-projected obliquity (λ)

-36.00°

Angular separation (arcsec)

0.33000

Eq. Temperature

1,313K

(1040 °C)

Insolation (S⊕)

718.19

Earth = 1.00

Earth Similarity (ESI)

0.083

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Radial velocity

Stellar wobble has been measured spectroscopically.

Discovery Paper

Primary reference

Collins et al. 2014

Instrument

Apogee 4K CCD Sensor

Publication

2014-02

Observation locale

Ground

Host System: KELT-6

Spectral Class

F-type yellow-white

Effective Temperature

6,102 K — hotter than the Sun (5,778 K)

Estimated Age

6.10 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.730 R☉

Stellar Mass

1.420 M☉

Metallicity [Fe/H]

-0.28

Extended Stellar Properties

Surface gravity (log g)

4.070 dex

Stellar density

0.390 g/cm³

Systemic radial velocity

1.10 km/s

Rotational v·sin i

4.53 km/s

Metallicity ratio

[Fe/H]

Distance

240.73 parsec

Light-years 785.14 ly

V-band magnitude

10.37 mag

Voyager-speed travel 13,845,984 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

4.126 mas

Total Proper Motion

16.452 mas/yr

PM Right Ascension

-5.11 mas/yr

PM Declination

15.64 mas/yr

Galactic Cartesian (pc)

x = -0.827 · y = -0.237 · z = 0.510

Equatorial (J2000)

RA 195.98184° · Dec 30.64015°

Galactic ℓ, b

85.775° · 85.550°

Ecliptic λ, β

181.009° · 34.182°

HTM-20 index

1919157121