Key parameters at a glance

A radius of 3.19 Earth radii
A mass of 10.30 Earth masses
Surface gravity around 1.01 g
An orbital period of 374.876 days
Semi-major axis 1.0525 AU
Equilibrium temperature 282 K (9 °C)
Distance from Earth 2,013.49 light-years
Earth Similarity Index 0.687
Travel time at Voyager 1 speed 35,507,862 years

Kepler-1634 b Planet Profile

Physical Specs

Radius

3.19 R⊕

Radius (Jupiter)

0.285 R♃

Mass

10.30 M⊕

Mass (Jupiter)

0.032 M♃

Density

1.74 g/cm³

Surface Gravity

1.01 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.687

HZ Position Habitable

Controversial No

Discovery

Year 2016

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#358of 1978

top 18.0%

This planet

3.19R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-188 c 3.19 R⊕ Kepler-1294 b 3.19 R⊕ Kepler-351 c 3.19 R⊕

Metric	Earth	Kepler-1634 b	Jupiter
Radius (R⊕)	1.00	3.19	11.21
Mass (M⊕)	1.00	10.30	317.83
Density (g/cm³)	5.51	1.74	1.33
Surface Gravity (g)	1.00	1.01	2.53
Insolation (S⊕)	1.00	0.54	0.037

Star Catalogue Identifiers

TIC

TIC 270857293

Gaia DR2

Gaia DR2 2127953233416258432

Gaia DR3

Gaia DR3 2127953233416258432

System

Kepler-1634

Percentile among Sub-Neptune cohort

Radius 3.190 R⊕ · percentile 82 / cohort 1978

Mass 10.300 M⊕ · percentile 75 / cohort 1978

Orbital period 374.88 d · percentile 99 / cohort 1946

Distance 617.34 pc · percentile 54 / cohort 1975

ESI 0.687 · percentile 91 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

374.876 days

Semi-major axis

1.0525 AU

Eccentricity

0.000

Inclination

89.84 °

Year Length

A year here lasts about 1.03 Earth years on a nearly circular orbit at a mean orbital distance of 1.0525 AU.

Transit Fingerprint

Depth

0.093 %

Duration

11.328 h

Impact parameter b

0.892

Rp / R★

0.033257

Transit midpoint (BJD)

2,455,324.0631

Photometric dip

Transit produces a flux drop of 927 ppm lasting ≈ 11.33 h.

Extended Orbital Architecture

Planet / star radius ratio

0.033257

Semi-major axis / stellar radius

131.800

Impact parameter (b)

0.892

Transit mid-time (BJD)

2,455,324.0631

Angular separation (arcsec)

1.70000

Eq. Temperature

282K

(9 °C)

Insolation (S⊕)

0.54

Earth = 1.00

Earth Similarity (ESI)

0.687

0 = alien, 1 = Earth-identical

Within the conservative habitable zone — liquid water is physically possible with adequate atmospheric pressure.

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-1634

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,474 K — cooler than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.890 R☉

Stellar Mass

0.920 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.510 dex

Stellar density

1.464 g/cm³

Metallicity ratio

[Fe/H]

Distance

617.34 parsec

Light-years 2,013.49 ly

V-band magnitude

14.64 mag

Voyager-speed travel 35,507,862 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.591 mas

Total Proper Motion

9.790 mas/yr

PM Right Ascension

-0.20 mas/yr

PM Declination

9.79 mas/yr

Galactic Cartesian (pc)

x = 0.287 · y = -0.644 · z = 0.709

Equatorial (J2000)

RA 294.04340° · Dec 45.13982°

Galactic ℓ, b

77.984° · 11.622°

Ecliptic λ, β

312.915° · 65.037°

HTM-20 index

-1720565662