Key parameters at a glance

A radius of 1.14 Earth radii
A mass of 2,414.40 Earth masses
Surface gravity around 1,857.80 g
An orbital period of 4.385 days
Semi-major axis 0.0500 AU
Equilibrium temperature 935 K (662 °C)
Distance from Earth 1,635.91 light-years
Earth Similarity Index 0.182
Travel time at Voyager 1 speed 28,849,336 years
Almost certainly tidally locked to its host star given the close orbit

3 siblings around Kepler-324

Kepler-324 b shares its host star with 3 other confirmed planets. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-324 b this	Rocky Terrestrial	1.14	2,414.40	4.385	935	2014
Kepler-324 e	Sub-Neptune	2.04	235.01	13.979	635	2021
KOI-1831 d	Rocky Terrestrial	1.13	2.23	34.169	475	2021
Kepler-324 c	Sub-Neptune	3.15	6.20	51.806	410	2014

Kepler-324 b Planet Profile

Physical Specs

Radius

1.14 R⊕

Radius (Jupiter)

0.102 R♃

Mass

2,414.40 M⊕

Mass (Jupiter)

7.597 M♃

Density

3.00 g/cm³

Surface Gravity

1,857.80 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.182

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#169of 570

top 29.5%

This planet

1.14R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-320 b 1.14 R⊕ Kepler-303 c 1.14 R⊕ Kepler-1456 b 1.14 R⊕

Metric	Earth	Kepler-324 b	Jupiter
Radius (R⊕)	1.00	1.14	11.21
Mass (M⊕)	1.00	2,414.40	317.83
Density (g/cm³)	5.51	3.00	1.33
Surface Gravity (g)	1.00	1,857.80	2.53
Insolation (S⊕)	1.00	194.34	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	2,414.400 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 243271716

Gaia DR2

Gaia DR2 2132078120004385152

Gaia DR3

Gaia DR3 2132078120004385152

System

Kepler-324

Percentile among Rocky Terrestrial cohort

Radius 1.140 R⊕ · percentile 69 / cohort 570

Mass 2,414.400 M⊕ · percentile 100 / cohort 570

Orbital period 4.39 d · percentile 49 / cohort 567

Distance 501.57 pc · percentile 64 / cohort 566

ESI 0.182 · percentile 10 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

4.385 days

Semi-major axis

0.0500 AU

Eccentricity

0.000

Inclination

88.50 °

Year Length

A year here lasts approximately 4.39 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0500 AU.

Transit Fingerprint

Depth

0.020 %

Duration

2.488 h

Impact parameter b

0.380

Rp / R★

0.012780

Transit midpoint (BJD)

2,454,972.2266

Photometric dip

Transit produces a flux drop of 199 ppm lasting ≈ 2.49 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012780

Semi-major axis / stellar radius

13.470

Impact parameter (b)

0.380

Transit mid-time (BJD)

2,454,972.2266

Angular separation (arcsec)

0.09970

Eq. Temperature

935K

(662 °C)

Insolation (S⊕)

194.34

Earth = 1.00

Earth Similarity (ESI)

0.182

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-324

Spectral Class

K-type orange

Effective Temperature

5,194 K — cooler than the Sun (5,778 K)

Estimated Age

3.39 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.840 R☉

Stellar Mass

0.901 M☉

Metallicity [Fe/H]

0.18

Extended Stellar Properties

Surface gravity (log g)

4.530 dex

Stellar density

1.852 g/cm³

Metallicity ratio

[Fe/H]

Distance

501.57 parsec

Light-years 1,635.91 ly

V-band magnitude

14.22 mag

Voyager-speed travel 28,849,336 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.965 mas

Total Proper Motion

22.463 mas/yr

PM Right Ascension

-2.20 mas/yr

PM Declination

22.36 mas/yr

Galactic Cartesian (pc)

x = 0.184 · y = -0.621 · z = 0.762

Equatorial (J2000)

RA 286.47145° · Dec 49.64909°

Galactic ℓ, b

80.093° · 18.132°

Ecliptic λ, β

304.556° · 71.118°

HTM-20 index

349022935