Confirmed Exoplanet Discovered 2014

Kepler-292 d

A sub-neptune orbiting the g-type yellow (sun-like) Kepler-292, located approximately 3,445.8 light-years from Earth.

Key parameters at a glance

  • A radius of 2.23 Earth radii
  • A mass of 5.60 Earth masses
  • Surface gravity around 1.13 g
  • An orbital period of 7.056 days
  • Semi-major axis 0.0680 AU
  • Equilibrium temperature 808 K (535 °C)
  • Distance from Earth 3,445.77 light-years
  • Earth Similarity Index 0.327
  • Travel time at Voyager 1 speed 60,766,202 years

4 siblings around Kepler-292

Kepler-292 d shares its host star with 4 other confirmed planets. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
Kepler-292 b Super-Earth 1.32 2.30 2.581 1,130 2014
Kepler-292 c Super-Earth 1.47 2.76 3.715 1,001 2014
Kepler-292 d this Sub-Neptune 2.23 5.60 7.056 808 2014
Kepler-292 e Sub-Neptune 2.67 7.61 11.979 678 2014
Kepler-292 f Sub-Neptune 2.35 6.12 20.834 563 2014

Kepler-292 d Planet Profile

Physical Specs

Radius
2.23 R⊕
Radius (Jupiter)
0.199 R♃
Mass
5.60 M⊕
Mass (Jupiter)
0.018 M♃
Density
2.77 g/cm³
Surface Gravity
1.13 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.327
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

#1622of 1978

top 82.0%

This planet

2.23R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth Kepler-292 d Jupiter
Radius (R⊕)1.002.2311.21
Mass (M⊕)1.005.60317.83
Density (g/cm³)5.512.771.33
Surface Gravity (g)1.001.132.53
Insolation (S⊕)1.00103.010.037

Star Catalogue Identifiers

TIC

TIC 271960465

Gaia DR2

Gaia DR2 2077140987172577408

Gaia DR3

Gaia DR3 2077140987172577408

System

Kepler-292

Percentile among Sub-Neptune cohort

Radius 2.230 R⊕ · percentile 17 / cohort 1978
Mass 5.600 M⊕ · percentile 17 / cohort 1978
Orbital period 7.06 d · percentile 22 / cohort 1946
Distance 1,056.48 pc · percentile 81 / cohort 1975
ESI 0.327 · percentile 34 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
7.056 days
Semi-major axis
0.0680 AU
Eccentricity
0.000
Inclination
89.00 °

Year Length

A year here lasts approximately 7.06 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0680 AU.

Transit Fingerprint

Depth

0.071 %

Duration

3.145 h

Impact parameter b

0.350

Rp / R★

0.024103

Transit midpoint (BJD)

2,455,014.9097

Photometric dip

Transit produces a flux drop of 706 ppm lasting ≈ 3.15 h.

Extended Orbital Architecture

Planet / star radius ratio

0.024103

Semi-major axis / stellar radius

17.530

Impact parameter (b)

0.350

Transit mid-time (BJD)

2,455,014.9097

Angular separation (arcsec)

0.06440

Eq. Temperature

808K

(535 °C)

Insolation (S⊕)

103.01

Earth = 1.00

Earth Similarity (ESI)

0.327

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

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Host System: Kepler-292

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,299 K — cooler than the Sun (5,778 K)

Estimated Age

5.13 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.826 R☉

Stellar Mass

0.865 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.536 dex

Stellar density

1.590 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,056.48 parsec
Light-years 3,445.77 ly
V-band magnitude
16.30 mag
Voyager-speed travel 60,766,202 yr

Multi-band Host Photometry — 16 bands

9.516.616.61B16.30V15.94Gaia15.96Kepler15.36TESS16.63Sloan g15.89Sloan r15.67Sloan i15.53Sloan z14.54J14.08H13.97K14.03W114.08W213.21W39.47W4

Astrometric Data

Parallax

0.920 mas

Total Proper Motion

7.401 mas/yr

PM Right Ascension

7.06 mas/yr

PM Declination

-2.21 mas/yr

Galactic Cartesian (pc)

x = 0.321 · y = -0.665 · z = 0.675

Equatorial (J2000)

RA 295.76620° · Dec 42.42428°

Galactic ℓ, b

76.128° · 9.258°

Ecliptic λ, β

313.207° · 62.053°

HTM-20 index

-1605035674

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