Key parameters at a glance

A radius of 0.98 Earth radii
A mass of 0.89 Earth masses
Surface gravity around 0.94 g
An orbital period of 5.364 days
Semi-major axis 0.0588 AU
Equilibrium temperature 1,059 K (786 °C)
Distance from Earth 2,479.00 light-years
Earth Similarity Index 0.302
Travel time at Voyager 1 speed 43,717,120 years

1 sibling around Kepler-1693

Kepler-1693 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-1693 c this	Rocky Terrestrial	0.98	0.89	5.364	1,059	2021
Kepler-1693 b	Super-Earth	1.29	2.21	12.100	807	2020

Kepler-1693 c Planet Profile

Physical Specs

Radius

0.98 R⊕

Radius (Jupiter)

0.087 R♃

Mass

0.89 M⊕

Mass (Jupiter)

0.003 M♃

Density

5.27 g/cm³

Surface Gravity

0.94 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.302

HZ Position Inner

Controversial No

Discovery

Year 2021

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#361of 570

top 63.2%

This planet

0.98R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

SPECULOOS-3 b 0.98 R⊕ Kepler-68 c 0.98 R⊕ Kepler-220 d 0.98 R⊕

Metric	Earth	Kepler-1693 c	Jupiter
Radius (R⊕)	1.00	0.98	11.21
Mass (M⊕)	1.00	0.89	317.83
Density (g/cm³)	5.51	5.27	1.33
Surface Gravity (g)	1.00	0.94	2.53
Insolation (S⊕)	1.00	296.73	0.037

Star Catalogue Identifiers

TIC

TIC 406948151

Gaia DR2

Gaia DR2 2129417198787412608

Gaia DR3

Gaia DR3 2129417198787412608

System

Kepler-1693

Percentile among Rocky Terrestrial cohort

Radius 0.977 R⊕ · percentile 37 / cohort 570

Mass 0.894 M⊕ · percentile 32 / cohort 570

Orbital period 5.36 d · percentile 57 / cohort 567

Distance 760.07 pc · percentile 82 / cohort 566

ESI 0.302 · percentile 39 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

5.364 days

Semi-major axis

0.0588 AU

Eccentricity

0.000

Inclination

89.97 °

Year Length

A year here lasts approximately 5.36 Earth days (1.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0588 AU.

Transit Fingerprint

Depth

0.011 %

Duration

2.875 h

Impact parameter b

0.008

Rp / R★

0.009630

Transit midpoint (BJD)

2,454,967.6491

Photometric dip

Transit produces a flux drop of 114 ppm lasting ≈ 2.88 h.

Extended Orbital Architecture

Planet / star radius ratio

0.009630

Semi-major axis / stellar radius

13.800

Impact parameter (b)

0.008

Transit mid-time (BJD)

2,454,967.6491

Angular separation (arcsec)

0.07740

Eq. Temperature

1,059K

(786 °C)

Insolation (S⊕)

296.73

Earth = 1.00

Earth Similarity (ESI)

0.302

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Valizadegan et al. 2022

Instrument

Kepler CCD Array

Publication

2022-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2021 at Kepler (12 shown).

Kepler-1816 b · Super-Earth Kepler-1705 c · Sub-Neptune Kepler-1948 b · Rocky Terrestrial Kepler-196 d · Sub-Neptune Kepler-1853 b · Super-Earth Kepler-1840 b · Sub-Neptune Kepler-1881 b · Sub-Neptune Kepler-1858 b · Sub-Neptune Kepler-1874 b · Sub-Neptune Kepler-1802 c · Sub-Neptune Kepler-1749 b · Super-Earth Kepler-1849 b · Sub-Neptune

Host System: Kepler-1693

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,553 K — cooler than the Sun (5,778 K)

Estimated Age

0.80 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.098 R☉

Stellar Mass

0.941 M☉

Metallicity [Fe/H]

0.16

Extended Stellar Properties

Surface gravity (log g)

4.330 dex

Stellar density

1.836 g/cm³

Metallicity ratio

[Fe/H]

Distance

760.07 parsec

Light-years 2,479.00 ly

V-band magnitude

14.86 mag

Voyager-speed travel 43,717,120 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.287 mas

Total Proper Motion

3.285 mas/yr

PM Right Ascension

-0.87 mas/yr

PM Declination

-3.17 mas/yr

Galactic Cartesian (pc)

x = 0.230 · y = -0.626 · z = 0.745

Equatorial (J2000)

RA 290.20156° · Dec 48.18578°

Galactic ℓ, b

79.651° · 15.309°

Ecliptic λ, β

309.667° · 68.860°

HTM-20 index

-371966082