Key parameters at a glance

A radius of 3.32 Earth radii
A mass of 11.00 Earth masses
Surface gravity around 1.00 g
An orbital period of 12.914 days
Semi-major axis 0.1053 AU
Equilibrium temperature 849 K (576 °C)
Distance from Earth 4,420.33 light-years
Earth Similarity Index 0.266
Travel time at Voyager 1 speed 77,952,463 years

Kepler-620 b Planet Profile

Physical Specs

Radius

3.32 R⊕

Radius (Jupiter)

0.296 R♃

Mass

11.00 M⊕

Mass (Jupiter)

0.035 M♃

Density

1.65 g/cm³

Surface Gravity

1.00 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.266

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

#268of 1978

top 13.5%

This planet

3.32R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-739 b 3.32 R⊕ Kepler-1270 b 3.32 R⊕ Kepler-411 d 3.32 R⊕

Metric	Earth	Kepler-620 b	Jupiter
Radius (R⊕)	1.00	3.32	11.21
Mass (M⊕)	1.00	11.00	317.83
Density (g/cm³)	5.51	1.65	1.33
Surface Gravity (g)	1.00	1.00	2.53
Insolation (S⊕)	1.00	219.05	0.037

Star Catalogue Identifiers

TIC

TIC 350737935

Gaia DR2

Gaia DR2 2136210874976312192

Gaia DR3

Gaia DR3 2136210874976312192

System

Kepler-620

Percentile among Sub-Neptune cohort

Radius 3.320 R⊕ · percentile 86 / cohort 1978

Mass 11.000 M⊕ · percentile 80 / cohort 1978

Orbital period 12.91 d · percentile 44 / cohort 1946

Distance 1,355.28 pc · percentile 90 / cohort 1975

ESI 0.266 · percentile 20 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

12.914 days

Semi-major axis

0.1053 AU

Eccentricity

0.000

Inclination

85.45 °

Year Length

A year here lasts approximately 12.91 Earth days (3.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1053 AU.

Transit Fingerprint

Depth

0.049 %

Duration

6.042 h

Impact parameter b

0.912

Rp / R★

0.025157

Transit midpoint (BJD)

2,455,010.2825

Photometric dip

Transit produces a flux drop of 488 ppm lasting ≈ 6.04 h.

Extended Orbital Architecture

Planet / star radius ratio

0.025157

Semi-major axis / stellar radius

8.000

Impact parameter (b)

0.912

Transit mid-time (BJD)

2,455,010.2825

Angular separation (arcsec)

0.07770

Eq. Temperature

849K

(576 °C)

Insolation (S⊕)

219.05

Earth = 1.00

Earth Similarity (ESI)

0.266

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-620

Spectral Class

F-type yellow-white

Effective Temperature

6,155 K — hotter than the Sun (5,778 K)

Estimated Age

3.02 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.220 R☉

Stellar Mass

1.150 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.330 dex

Stellar density

0.137 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,355.28 parsec

Light-years 4,420.33 ly

V-band magnitude

14.84 mag

Voyager-speed travel 77,952,463 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.709 mas

Total Proper Motion

12.188 mas/yr

PM Right Ascension

0.32 mas/yr

PM Declination

-12.18 mas/yr

Galactic Cartesian (pc)

x = 0.226 · y = -0.583 · z = 0.781

Equatorial (J2000)

RA 291.15939° · Dec 51.33482°

Galactic ℓ, b

82.904° · 16.008°

Ecliptic λ, β

315.192° · 71.467°

HTM-20 index

151006003