Key parameters at a glance

A radius of 3.73 Earth radii
A mass of 13.40 Earth masses
Surface gravity around 0.96 g
An orbital period of 40.699 days
Semi-major axis 0.2266 AU
Equilibrium temperature 685 K (412 °C)
Distance from Earth 3,210.38 light-years
Earth Similarity Index 0.314
Travel time at Voyager 1 speed 56,614,984 years

Kepler-627 b Planet Profile

Physical Specs

Radius

3.73 R⊕

Radius (Jupiter)

0.333 R♃

Mass

13.40 M⊕

Mass (Jupiter)

0.042 M♃

Density

1.42 g/cm³

Surface Gravity

0.96 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.314

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

#79of 1978

top 3.9%

This planet

3.73R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1065 b 3.73 R⊕ TOI-1136 f 3.74 R⊕ K2-357 b 3.72 R⊕

Metric	Earth	Kepler-627 b	Jupiter
Radius (R⊕)	1.00	3.73	11.21
Mass (M⊕)	1.00	13.40	317.83
Density (g/cm³)	5.51	1.42	1.33
Surface Gravity (g)	1.00	0.96	2.53
Insolation (S⊕)	1.00	39.30	0.037

Star Catalogue Identifiers

TIC

TIC 137413972

Gaia DR2

Gaia DR2 2053183453434348672

Gaia DR3

Gaia DR3 2053183453434348672

System

Kepler-627

Percentile among Sub-Neptune cohort

Radius 3.730 R⊕ · percentile 96 / cohort 1978

Mass 13.400 M⊕ · percentile 89 / cohort 1978

Orbital period 40.70 d · percentile 81 / cohort 1946

Distance 984.31 pc · percentile 77 / cohort 1975

ESI 0.314 · percentile 31 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

40.699 days

Semi-major axis

0.2266 AU

Eccentricity

0.000

Inclination

88.02 °

Year Length

A year here lasts approximately 40.70 Earth days (11.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2266 AU.

Transit Fingerprint

Depth

0.043 %

Duration

7.208 h

Impact parameter b

0.510

Rp / R★

0.022596

Transit midpoint (BJD)

2,455,005.5668

Photometric dip

Transit produces a flux drop of 430 ppm lasting ≈ 7.21 h.

Extended Orbital Architecture

Planet / star radius ratio

0.022596

Semi-major axis / stellar radius

22.500

Impact parameter (b)

0.510

Transit mid-time (BJD)

2,455,005.5668

Angular separation (arcsec)

0.23000

Eq. Temperature

685K

(412 °C)

Insolation (S⊕)

39.30

Earth = 1.00

Earth Similarity (ESI)

0.314

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

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-627

Spectral Class

F-type yellow-white

Effective Temperature

6,424 K — hotter than the Sun (5,778 K)

Estimated Age

2.24 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.490 R☉

Stellar Mass

1.300 M☉

Metallicity [Fe/H]

0.05

Extended Stellar Properties

Surface gravity (log g)

4.210 dex

Stellar density

0.430 g/cm³

Metallicity ratio

[Fe/H]

Distance

984.31 parsec

Light-years 3,210.38 ly

V-band magnitude

14.18 mag

Voyager-speed travel 56,614,984 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.987 mas

Total Proper Motion

11.178 mas/yr

PM Right Ascension

-8.12 mas/yr

PM Declination

-7.68 mas/yr

Galactic Cartesian (pc)

x = 0.289 · y = -0.712 · z = 0.640

Equatorial (J2000)

RA 292.10422° · Dec 39.76786°

Galactic ℓ, b

72.442° · 10.474°

Ecliptic λ, β

305.939° · 60.478°

HTM-20 index

1732320911