Key parameters at a glance

A radius of 0.88 Earth radii
A mass of 0.62 Earth masses
Surface gravity around 0.79 g
An orbital period of 1.644 days
Semi-major axis 0.0291 AU
Equilibrium temperature 1,897 K (1624 °C)
Distance from Earth 2,549.27 light-years
Earth Similarity Index 0.150
Travel time at Voyager 1 speed 44,956,395 years

3 siblings around Kepler-342

Kepler-342 e 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-342 e this	Rocky Terrestrial	0.88	0.62	1.644	1,897	2016
Kepler-342 b	Sub-Neptune	2.25	5.69	15.170	905	2014
Kepler-342 c	Super-Earth	1.96	4.50	26.234	754	2014
Kepler-342 d	Sub-Neptune	2.49	6.76	39.459	658	2014

Kepler-342 e Planet Profile

Physical Specs

Radius

0.88 R⊕

Radius (Jupiter)

0.079 R♃

Mass

0.62 M⊕

Mass (Jupiter)

0.002 M♃

Density

4.96 g/cm³

Surface Gravity

0.79 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.150

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

#430of 570

top 75.3%

This planet

0.88R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

GJ 341 b 0.88 R⊕ Kepler-362 b 0.88 R⊕ Kepler-1416 b 0.88 R⊕

Metric	Earth	Kepler-342 e	Jupiter
Radius (R⊕)	1.00	0.88	11.21
Mass (M⊕)	1.00	0.62	317.83
Density (g/cm³)	5.51	4.96	1.33
Surface Gravity (g)	1.00	0.79	2.53
Insolation (S⊕)	1.00	3,111.32	0.037

Star Catalogue Identifiers

TIC

TIC 63293562

Gaia DR2

Gaia DR2 2128298617506651904

Gaia DR3

Gaia DR3 2128298617506651904

System

Kepler-342

Percentile among Rocky Terrestrial cohort

Radius 0.880 R⊕ · percentile 24 / cohort 570

Mass 0.615 M⊕ · percentile 20 / cohort 570

Orbital period 1.64 d · percentile 19 / cohort 567

Distance 781.61 pc · percentile 84 / cohort 566

ESI 0.150 · percentile 5 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

1.644 days

Semi-major axis

0.0291 AU

Eccentricity

0.000

Inclination

58.94 °

Year Length

A year here lasts approximately 1.64 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0291 AU.

Transit Fingerprint

Depth

0.005 %

Duration

2.782 h

Impact parameter b

0.319

Rp / R★

0.006474

Transit midpoint (BJD)

2,454,964.7511

Photometric dip

Transit produces a flux drop of 48 ppm lasting ≈ 2.78 h.

Extended Orbital Architecture

Planet / star radius ratio

0.006474

Semi-major axis / stellar radius

1.825

Impact parameter (b)

0.319

Transit mid-time (BJD)

2,454,964.7511

Angular separation (arcsec)

0.03720

Eq. Temperature

1,897K

(1624 °C)

Insolation (S⊕)

3,111.32

Earth = 1.00

Earth Similarity (ESI)

0.150

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-342

Spectral Class

F-type yellow-white

Effective Temperature

6,366 K — hotter than the Sun (5,778 K)

Estimated Age

2.04 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.340 R☉

Stellar Mass

1.260 M☉

Metallicity [Fe/H]

0.12

Extended Stellar Properties

Surface gravity (log g)

4.280 dex

Stellar density

0.013 g/cm³

Metallicity ratio

[Fe/H]

Distance

781.61 parsec

Light-years 2,549.27 ly

V-band magnitude

13.20 mag

Voyager-speed travel 44,956,395 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.251 mas

Total Proper Motion

8.649 mas/yr

PM Right Ascension

-5.24 mas/yr

PM Declination

-6.88 mas/yr

Galactic Cartesian (pc)

x = 0.264 · y = -0.632 · z = 0.728

Equatorial (J2000)

RA 292.67805° · Dec 46.72668°

Galactic ℓ, b

79.008° · 13.177°

Ecliptic λ, β

312.274° · 66.867°

HTM-20 index

-943510250