Key parameters at a glance

A radius of 3.29 Earth radii
A mass of 10.80 Earth masses
Surface gravity around 1.00 g
An orbital period of 3.315 days
Semi-major axis 0.0433 AU
Equilibrium temperature 1,155 K (882 °C)
Distance from Earth 2,782.50 light-years
Earth Similarity Index 0.191
Travel time at Voyager 1 speed 49,069,364 years

Kepler-724 b Planet Profile

Physical Specs

Radius

3.29 R⊕

Radius (Jupiter)

0.294 R♃

Mass

10.80 M⊕

Mass (Jupiter)

0.034 M♃

Density

1.67 g/cm³

Surface Gravity

1.00 g (Earth)

Classification

Planet Type

Sub-Neptune

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

#287of 1978

top 14.5%

This planet

3.29R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1999 b 3.29 R⊕ TOI-431 d 3.29 R⊕ Kepler-1090 c 3.29 R⊕

Metric	Earth	Kepler-724 b	Jupiter
Radius (R⊕)	1.00	3.29	11.21
Mass (M⊕)	1.00	10.80	317.83
Density (g/cm³)	5.51	1.67	1.33
Surface Gravity (g)	1.00	1.00	2.53
Insolation (S⊕)	1.00	339.40	0.037

Star Catalogue Identifiers

TIC

TIC 270521439

Gaia DR2

Gaia DR2 2126432196518051200

Gaia DR3

Gaia DR3 2126432196518051200

System

Kepler-724

Percentile among Sub-Neptune cohort

Radius 3.290 R⊕ · percentile 85 / cohort 1978

Mass 10.800 M⊕ · percentile 79 / cohort 1978

Orbital period 3.31 d · percentile 6 / cohort 1946

Distance 853.12 pc · percentile 69 / cohort 1975

ESI 0.191 · percentile 6 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

3.315 days

Semi-major axis

0.0433 AU

Eccentricity

0.000

Inclination

85.11 °

Year Length

A year here lasts approximately 3.31 Earth days (0.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0433 AU.

Transit Fingerprint

Depth

0.140 %

Duration

1.707 h

Impact parameter b

0.895

Rp / R★

0.035239

Transit midpoint (BJD)

2,455,004.3134

Photometric dip

Transit produces a flux drop of 1,398 ppm lasting ≈ 1.71 h.

Extended Orbital Architecture

Planet / star radius ratio

0.035239

Semi-major axis / stellar radius

15.369

Impact parameter (b)

0.895

Transit mid-time (BJD)

2,455,004.3134

Angular separation (arcsec)

0.05080

Eq. Temperature

1,155K

(882 °C)

Insolation (S⊕)

339.40

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-724

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,437 K — cooler than the Sun (5,778 K)

Estimated Age

4.37 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.860 R☉

Stellar Mass

0.900 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.530 dex

Stellar density

6.249 g/cm³

Metallicity ratio

[Fe/H]

Distance

853.12 parsec

Light-years 2,782.50 ly

V-band magnitude

15.28 mag

Voyager-speed travel 49,069,364 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.144 mas

Total Proper Motion

7.977 mas/yr

PM Right Ascension

-3.21 mas/yr

PM Declination

-7.30 mas/yr

Galactic Cartesian (pc)

x = 0.282 · y = -0.651 · z = 0.705

Equatorial (J2000)

RA 293.45484° · Dec 44.79278°

Galactic ℓ, b

77.476° · 11.837°

Ecliptic λ, β

311.694° · 64.873°

HTM-20 index

-1627171150