Key parameters at a glance

A radius of 0.96 Earth radii
A mass of 0.84 Earth masses
Surface gravity around 0.91 g
An orbital period of 1.889 days
Semi-major axis 0.0305 AU
Equilibrium temperature 1,574 K (1301 °C)
Distance from Earth 3,451.51 light-years
Earth Similarity Index 0.191
Travel time at Voyager 1 speed 60,867,433 years

1 sibling around Kepler-524

Kepler-524 c 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
Kepler-524 c this	Rocky Terrestrial	0.96	0.84	1.889	1,574	2016
Kepler-524 b	Super-Earth	1.91	4.31	7.974	974	2016

Kepler-524 c Planet Profile

Physical Specs

Radius

0.96 R⊕

Radius (Jupiter)

0.086 R♃

Mass

0.84 M⊕

Mass (Jupiter)

0.003 M♃

Density

5.22 g/cm³

Surface Gravity

0.91 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.191

HZ Position Inner

Controversial No

Discovery

Year 2016

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#366of 570

top 64.0%

This planet

0.96R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1650 b 0.96 R⊕ Kepler-399 b 0.96 R⊕ Kepler-1445 b 0.96 R⊕

Metric	Earth	Kepler-524 c	Jupiter
Radius (R⊕)	1.00	0.96	11.21
Mass (M⊕)	1.00	0.84	317.83
Density (g/cm³)	5.51	5.22	1.33
Surface Gravity (g)	1.00	0.91	2.53
Insolation (S⊕)	1.00	2,959.34	0.037

Star Catalogue Identifiers

TIC

TIC 27914389

Gaia DR2

Gaia DR2 2086827237930612096

Gaia DR3

Gaia DR3 2086827237930612096

System

Kepler-524

Percentile among Rocky Terrestrial cohort

Radius 0.960 R⊕ · percentile 35 / cohort 570

Mass 0.840 M⊕ · percentile 31 / cohort 570

Orbital period 1.89 d · percentile 20 / cohort 567

Distance 1,058.24 pc · percentile 94 / cohort 566

ESI 0.191 · percentile 13 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

1.889 days

Semi-major axis

0.0305 AU

Eccentricity

0.000

Inclination

89.84 °

Year Length

A year here lasts approximately 1.89 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0305 AU.

Transit Fingerprint

Depth

0.006 %

Duration

3.246 h

Impact parameter b

0.834

Rp / R★

0.007547

Transit midpoint (BJD)

2,454,965.0974

Photometric dip

Transit produces a flux drop of 59 ppm lasting ≈ 3.25 h.

Extended Orbital Architecture

Planet / star radius ratio

0.007547

Semi-major axis / stellar radius

2.710

Impact parameter (b)

0.834

Transit mid-time (BJD)

2,454,965.0974

Angular separation (arcsec)

0.02880

Eq. Temperature

1,574K

(1301 °C)

Insolation (S⊕)

2,959.34

Earth = 1.00

Earth Similarity (ESI)

0.191

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-524

Spectral Class

F-type yellow-white

Effective Temperature

6,014 K — hotter than the Sun (5,778 K)

Estimated Age

3.02 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.100 R☉

Stellar Mass

1.090 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.390 dex

Stellar density

0.280 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,058.24 parsec

Light-years 3,451.51 ly

V-band magnitude

14.08 mag

Voyager-speed travel 60,867,433 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.916 mas

Total Proper Motion

3.625 mas/yr

PM Right Ascension

-2.03 mas/yr

PM Declination

-3.00 mas/yr

Galactic Cartesian (pc)

x = 0.295 · y = -0.583 · z = 0.757

Equatorial (J2000)

RA 296.85918° · Dec 49.16201°

Galactic ℓ, b

82.529° · 11.782°

Ecliptic λ, β

321.581° · 67.848°

HTM-20 index

1940238302