Key parameters at a glance

A radius of 0.77 Earth radii
A mass of 0.38 Earth masses
Surface gravity around 0.64 g
An orbital period of 3.876 days
Semi-major axis 0.0485 AU
Equilibrium temperature 1,081 K (808 °C)
Distance from Earth 1,096.18 light-years
Earth Similarity Index 0.276
Travel time at Voyager 1 speed 19,331,093 years

Kepler-1629 b Planet Profile

Physical Specs

Radius

0.77 R⊕

Radius (Jupiter)

0.069 R♃

Mass

0.38 M⊕

Mass (Jupiter)

0.001 M♃

Density

4.59 g/cm³

Surface Gravity

0.64 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.276

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

#496of 570

top 86.8%

This planet

0.77R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1982 b 0.77 R⊕ Kepler-431 b 0.76 R⊕ Kepler-1588 b 0.76 R⊕

Metric	Earth	Kepler-1629 b	Jupiter
Radius (R⊕)	1.00	0.77	11.21
Mass (M⊕)	1.00	0.38	317.83
Density (g/cm³)	5.51	4.59	1.33
Surface Gravity (g)	1.00	0.64	2.53
Insolation (S⊕)	1.00	315.46	0.037

Star Catalogue Identifiers

TIC

TIC 351766445

Gaia DR2

Gaia DR2 2117125655219423744

Gaia DR3

Gaia DR3 2117125655219423744

System

Kepler-1629

Percentile among Rocky Terrestrial cohort

Radius 0.770 R⊕ · percentile 13 / cohort 570

Mass 0.381 M⊕ · percentile 11 / cohort 570

Orbital period 3.88 d · percentile 42 / cohort 567

Distance 336.09 pc · percentile 45 / cohort 566

ESI 0.276 · percentile 31 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

3.876 days

Semi-major axis

0.0485 AU

Eccentricity

0.000

Inclination

89.89 °

Year Length

A year here lasts approximately 3.88 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0485 AU.

Transit Fingerprint

Depth

0.006 %

Duration

2.226 h

Impact parameter b

0.382

Rp / R★

0.006986

Transit midpoint (BJD)

2,454,967.8445

Photometric dip

Transit produces a flux drop of 59 ppm lasting ≈ 2.23 h.

Extended Orbital Architecture

Planet / star radius ratio

0.006986

Semi-major axis / stellar radius

12.897

Impact parameter (b)

0.382

Transit mid-time (BJD)

2,454,967.8445

Angular separation (arcsec)

0.14400

Eq. Temperature

1,081K

(808 °C)

Insolation (S⊕)

315.46

Earth = 1.00

Earth Similarity (ESI)

0.276

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-1629

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,776 K — cooler than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.010 R☉

Stellar Mass

1.010 M☉

Metallicity [Fe/H]

0.05

Extended Stellar Properties

Surface gravity (log g)

4.440 dex

Stellar density

2.098 g/cm³

Systemic radial velocity

-15.42 km/s

Rotational v·sin i

5.90 km/s

Metallicity ratio

[Fe/H]

Distance

336.09 parsec

Light-years 1,096.18 ly

V-band magnitude

12.79 mag

Voyager-speed travel 19,331,093 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.947 mas

Total Proper Motion

4.649 mas/yr

PM Right Ascension

3.17 mas/yr

PM Declination

3.40 mas/yr

Galactic Cartesian (pc)

x = 0.128 · y = -0.711 · z = 0.692

Equatorial (J2000)

RA 280.20663° · Dec 43.77433°

Galactic ℓ, b

72.709° · 20.194°

Ecliptic λ, β

288.751° · 66.550°

HTM-20 index

-951656906