Key parameters at a glance

A radius of 1.29 Earth radii
A mass of 2.21 Earth masses
Surface gravity around 1.33 g
An orbital period of 4.485 days
Semi-major axis 0.0550 AU
Equilibrium temperature 1,199 K (926 °C)
Distance from Earth 3,959.83 light-years
Earth Similarity Index 0.254
Travel time at Voyager 1 speed 69,831,552 years

Kepler-1429 b Planet Profile

Physical Specs

Radius

1.29 R⊕

Radius (Jupiter)

0.115 R♃

Mass

2.21 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.66 g/cm³

Surface Gravity

1.33 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.254

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

#1100of 1176

top 93.5%

This planet

1.29R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-211 c 1.29 R⊕ Kepler-312 b 1.29 R⊕ Kepler-173 b 1.29 R⊕

Metric	Earth	Kepler-1429 b	Jupiter
Radius (R⊕)	1.00	1.29	11.21
Mass (M⊕)	1.00	2.21	317.83
Density (g/cm³)	5.51	5.66	1.33
Surface Gravity (g)	1.00	1.33	2.53
Insolation (S⊕)	1.00	551.16	0.037

Star Catalogue Identifiers

TIC

TIC 279917996

Gaia DR2

Gaia DR2 2132001463427986688

Gaia DR3

Gaia DR3 2132001463427986688

System

Kepler-1429

Percentile among Super-Earth cohort

Radius 1.290 R⊕ · percentile 6 / cohort 1176

Mass 2.210 M⊕ · percentile 6 / cohort 1176

Orbital period 4.48 d · percentile 36 / cohort 1164

Distance 1,214.09 pc · percentile 89 / cohort 1171

ESI 0.254 · percentile 24 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

4.485 days

Semi-major axis

0.0550 AU

Eccentricity

0.000

Inclination

88.57 °

Year Length

A year here lasts approximately 4.48 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0550 AU.

Transit Fingerprint

Depth

0.013 %

Duration

2.580 h

Impact parameter b

0.300

Rp / R★

0.010542

Transit midpoint (BJD)

2,454,968.0278

Photometric dip

Transit produces a flux drop of 135 ppm lasting ≈ 2.58 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010542

Semi-major axis / stellar radius

5.000

Impact parameter (b)

0.300

Transit mid-time (BJD)

2,454,968.0278

Angular separation (arcsec)

0.04530

Eq. Temperature

1,199K

(926 °C)

Insolation (S⊕)

551.16

Earth = 1.00

Earth Similarity (ESI)

0.254

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-1429

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,902 K — hotter than the Sun (5,778 K)

Estimated Age

4.17 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.070 R☉

Stellar Mass

1.050 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

1.638 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,214.09 parsec

Light-years 3,959.83 ly

V-band magnitude

15.05 mag

Voyager-speed travel 69,831,552 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.795 mas

Total Proper Motion

12.450 mas/yr

PM Right Ascension

-5.72 mas/yr

PM Declination

-11.06 mas/yr

Galactic Cartesian (pc)

x = 0.174 · y = -0.632 · z = 0.755

Equatorial (J2000)

RA 285.36625° · Dec 49.04482°

Galactic ℓ, b

79.230° · 18.594°

Ecliptic λ, β

301.857° · 70.789°

HTM-20 index

-365536263