Key parameters at a glance

A radius of 1.11 Earth radii
A mass of 1.41 Earth masses
Surface gravity around 1.14 g
An orbital period of 0.921 days
Semi-major axis 0.0198 AU
Equilibrium temperature 2,362 K (2089 °C)
Distance from Earth 4,276.66 light-years
Earth Similarity Index 0.116
Travel time at Voyager 1 speed 75,418,812 years

Kepler-929 b Planet Profile

Physical Specs

Radius

1.11 R⊕

Radius (Jupiter)

0.099 R♃

Mass

1.41 M⊕

Mass (Jupiter)

0.004 M♃

Density

5.67 g/cm³

Surface Gravity

1.14 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.116

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

#209of 570

top 36.5%

This planet

1.11R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-124 d 1.11 R⊕ Kepler-327 b 1.11 R⊕ Kepler-333 c 1.11 R⊕

Metric	Earth	Kepler-929 b	Jupiter
Radius (R⊕)	1.00	1.11	11.21
Mass (M⊕)	1.00	1.41	317.83
Density (g/cm³)	5.51	5.67	1.33
Surface Gravity (g)	1.00	1.14	2.53
Insolation (S⊕)	1.00	8,159.93	0.037

Star Catalogue Identifiers

TIC

TIC 170733187

Gaia DR2

Gaia DR2 2075389018477664384

Gaia DR3

Gaia DR3 2075389018477664384

System

Kepler-929

Percentile among Rocky Terrestrial cohort

Radius 1.110 R⊕ · percentile 61 / cohort 570

Mass 1.410 M⊕ · percentile 56 / cohort 570

Orbital period 0.92 d · percentile 10 / cohort 567

Distance 1,311.23 pc · percentile 98 / cohort 566

ESI 0.116 · percentile 2 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

0.921 days

Semi-major axis

0.0198 AU

Eccentricity

0.000

Inclination

89.49 °

Year Length

A year here lasts roughly 22.1 hours long on a nearly circular orbit at a mean orbital distance of 0.0198 AU.

Transit Fingerprint

Depth

0.010 %

Duration

2.535 h

Impact parameter b

0.852

Rp / R★

0.009570

Transit midpoint (BJD)

2,454,965.0303

Photometric dip

Transit produces a flux drop of 102 ppm lasting ≈ 2.53 h.

Extended Orbital Architecture

Planet / star radius ratio

0.009570

Semi-major axis / stellar radius

2.862

Impact parameter (b)

0.852

Transit mid-time (BJD)

2,454,965.0303

Angular separation (arcsec)

0.01510

Eq. Temperature

2,362K

(2089 °C)

Insolation (S⊕)

8,159.93

Earth = 1.00

Earth Similarity (ESI)

0.116

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-929

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,869 K — hotter than the Sun (5,778 K)

Estimated Age

3.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.020 R☉

Stellar Mass

1.010 M☉

Metallicity [Fe/H]

-0.04

Extended Stellar Properties

Surface gravity (log g)

4.420 dex

Stellar density

0.340 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,311.23 parsec

Light-years 4,276.66 ly

V-band magnitude

14.74 mag

Voyager-speed travel 75,418,812 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.734 mas

Total Proper Motion

18.180 mas/yr

PM Right Ascension

-3.18 mas/yr

PM Declination

-17.90 mas/yr

Galactic Cartesian (pc)

x = 0.357 · y = -0.657 · z = 0.664

Equatorial (J2000)

RA 298.48110° · Dec 41.61526°

Galactic ℓ, b

76.415° · 7.103°

Ecliptic λ, β

316.461° · 60.542°

HTM-20 index

-28480834