Key parameters at a glance

A radius of 1.31 Earth radii
A mass of 2.27 Earth masses
Surface gravity around 1.32 g
An orbital period of 4.361 days
Semi-major axis 0.0518 AU
Equilibrium temperature 1,000 K (727 °C)
Distance from Earth 2,731.49 light-years
Earth Similarity Index 0.310
Travel time at Voyager 1 speed 48,169,903 years

Kepler-1623 b Planet Profile

Physical Specs

Radius

1.31 R⊕

Radius (Jupiter)

0.117 R♃

Mass

2.27 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.55 g/cm³

Surface Gravity

1.32 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.310

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

#1072of 1176

top 91.1%

This planet

1.31R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-374 d 1.31 R⊕ Kepler-1298 b 1.31 R⊕ Kepler-62 b 1.31 R⊕

Metric	Earth	Kepler-1623 b	Jupiter
Radius (R⊕)	1.00	1.31	11.21
Mass (M⊕)	1.00	2.27	317.83
Density (g/cm³)	5.51	5.55	1.33
Surface Gravity (g)	1.00	1.32	2.53
Insolation (S⊕)	1.00	243.08	0.037

Star Catalogue Identifiers

TIC

TIC 138572691

Gaia DR2

Gaia DR2 2052435819888356864

Gaia DR3

Gaia DR3 2052435819888356864

System

Kepler-1623

Percentile among Super-Earth cohort

Radius 1.310 R⊕ · percentile 8 / cohort 1176

Mass 2.270 M⊕ · percentile 8 / cohort 1176

Orbital period 4.36 d · percentile 35 / cohort 1164

Distance 837.48 pc · percentile 70 / cohort 1171

ESI 0.310 · percentile 39 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

4.361 days

Semi-major axis

0.0518 AU

Eccentricity

0.000

Inclination

88.52 °

Year Length

A year here lasts approximately 4.36 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0518 AU.

Transit Fingerprint

Depth

0.018 %

Duration

2.058 h

Impact parameter b

0.374

Rp / R★

0.012359

Transit midpoint (BJD)

2,454,965.5272

Photometric dip

Transit produces a flux drop of 177 ppm lasting ≈ 2.06 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012359

Semi-major axis / stellar radius

14.440

Impact parameter (b)

0.374

Transit mid-time (BJD)

2,454,965.5272

Angular separation (arcsec)

0.06190

Eq. Temperature

1,000K

(727 °C)

Insolation (S⊕)

243.08

Earth = 1.00

Earth Similarity (ESI)

0.310

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-1623

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,772 K — cooler than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.000 R☉

Stellar Mass

1.000 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.440 dex

Stellar density

3.210 g/cm³

Metallicity ratio

[Fe/H]

Distance

837.48 parsec

Light-years 2,731.49 ly

V-band magnitude

15.21 mag

Voyager-speed travel 48,169,903 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.166 mas

Total Proper Motion

4.994 mas/yr

PM Right Ascension

-2.33 mas/yr

PM Declination

-4.42 mas/yr

Galactic Cartesian (pc)

x = 0.315 · y = -0.704 · z = 0.637

Equatorial (J2000)

RA 294.08270° · Dec 39.55607°

Galactic ℓ, b

72.960° · 9.023°

Ecliptic λ, β

308.711° · 59.800°

HTM-20 index

1171113338