Key parameters at a glance

A radius of 1.57 Earth radii
A mass of 3.09 Earth masses
Surface gravity around 1.25 g
An orbital period of 13.145 days
Semi-major axis 0.1070 AU
Equilibrium temperature 698 K (425 °C)
Distance from Earth 1,422.09 light-years
Earth Similarity Index 0.427
Travel time at Voyager 1 speed 25,078,597 years

Kepler-542 b Planet Profile

Physical Specs

Radius

1.57 R⊕

Radius (Jupiter)

0.140 R♃

Mass

3.09 M⊕

Mass (Jupiter)

0.010 M♃

Density

4.39 g/cm³

Surface Gravity

1.25 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.427

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

#618of 1176

top 52.5%

This planet

1.57R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-236 b 1.57 R⊕ Kepler-356 b 1.57 R⊕ Kepler-249 d 1.57 R⊕

Metric	Earth	Kepler-542 b	Jupiter
Radius (R⊕)	1.00	1.57	11.21
Mass (M⊕)	1.00	3.09	317.83
Density (g/cm³)	5.51	4.39	1.33
Surface Gravity (g)	1.00	1.25	2.53
Insolation (S⊕)	1.00	61.57	0.037

Star Catalogue Identifiers

TIC

TIC 137484431

Gaia DR2

Gaia DR2 2052695678282371840

Gaia DR3

Gaia DR3 2052695678282371840

System

Kepler-542

Percentile among Super-Earth cohort

Radius 1.570 R⊕ · percentile 47 / cohort 1176

Mass 3.090 M⊕ · percentile 42 / cohort 1176

Orbital period 13.14 d · percentile 73 / cohort 1164

Distance 436.02 pc · percentile 42 / cohort 1171

ESI 0.427 · percentile 64 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

13.145 days

Semi-major axis

0.1070 AU

Eccentricity

0.000

Inclination

88.51 °

Year Length

A year here lasts approximately 13.14 Earth days (3.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1070 AU.

Transit Fingerprint

Depth

0.030 %

Duration

3.596 h

Impact parameter b

0.946

Rp / R★

0.016474

Transit midpoint (BJD)

2,455,007.8456

Photometric dip

Transit produces a flux drop of 301 ppm lasting ≈ 3.60 h.

Extended Orbital Architecture

Planet / star radius ratio

0.016474

Semi-major axis / stellar radius

9.200

Impact parameter (b)

0.946

Transit mid-time (BJD)

2,455,007.8456

Angular separation (arcsec)

0.24500

Eq. Temperature

698K

(425 °C)

Insolation (S⊕)

61.57

Earth = 1.00

Earth Similarity (ESI)

0.427

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

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-542

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,526 K — cooler than the Sun (5,778 K)

Estimated Age

4.57 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.900 R☉

Stellar Mass

0.930 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.500 dex

Stellar density

1.330 g/cm³

Metallicity ratio

[Fe/H]

Distance

436.02 parsec

Light-years 1,422.09 ly

V-band magnitude

13.61 mag

Voyager-speed travel 25,078,597 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.265 mas

Total Proper Motion

21.573 mas/yr

PM Right Ascension

-19.79 mas/yr

PM Declination

-8.58 mas/yr

Galactic Cartesian (pc)

x = 0.296 · y = -0.724 · z = 0.623

Equatorial (J2000)

RA 292.21497° · Dec 38.54855°

Galactic ℓ, b

71.376° · 9.847°

Ecliptic λ, β

305.375° · 59.289°

HTM-20 index

1159910977