Key parameters at a glance

A radius of 1.24 Earth radii
A mass of 2.07 Earth masses
Surface gravity around 1.35 g
An orbital period of 16.333 days
Semi-major axis 0.1180 AU
Equilibrium temperature 591 K (318 °C)
Distance from Earth 824.30 light-years
Earth Similarity Index 0.527
Travel time at Voyager 1 speed 14,536,597 years

2 siblings around Kepler-352

Kepler-352 c shares its host star with 2 other confirmed planets. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-352 d	Rocky Terrestrial	0.81	0.45	6.887	788	2021
Kepler-352 b	Rocky Terrestrial	0.86	0.57	10.055	694	2014
Kepler-352 c this	Rocky Terrestrial	1.24	2.07	16.333	591	2014

Kepler-352 c Planet Profile

Physical Specs

Radius

1.24 R⊕

Radius (Jupiter)

0.111 R♃

Mass

2.07 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.97 g/cm³

Surface Gravity

1.35 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.527

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#4of 570

top 0.5%

This planet

1.24R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-354 d 1.24 R⊕ Kepler-373 c 1.24 R⊕ Kepler-383 c 1.24 R⊕

Metric	Earth	Kepler-352 c	Jupiter
Radius (R⊕)	1.00	1.24	11.21
Mass (M⊕)	1.00	2.07	317.83
Density (g/cm³)	5.51	5.97	1.33
Surface Gravity (g)	1.00	1.35	2.53
Insolation (S⊕)	1.00	26.37	0.037

Star Catalogue Identifiers

TIC

TIC 269271535

Gaia DR2

Gaia DR2 2085281530744134272

Gaia DR3

Gaia DR3 2085281530744134272

System

Kepler-352

Percentile among Rocky Terrestrial cohort

Radius 1.240 R⊕ · percentile 98 / cohort 570

Mass 2.070 M⊕ · percentile 89 / cohort 570

Orbital period 16.33 d · percentile 90 / cohort 567

Distance 252.73 pc · percentile 35 / cohort 566

ESI 0.527 · percentile 72 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

16.333 days

Semi-major axis

0.1180 AU

Eccentricity

0.000

Inclination

88.19 °

Year Length

A year here lasts approximately 16.33 Earth days (4.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1180 AU.

Transit Fingerprint

Depth

0.029 %

Duration

2.122 h

Impact parameter b

0.120

Rp / R★

0.015280

Transit midpoint (BJD)

2,454,969.9065

Photometric dip

Transit produces a flux drop of 289 ppm lasting ≈ 2.12 h.

Extended Orbital Architecture

Planet / star radius ratio

0.015280

Semi-major axis / stellar radius

61.270

Impact parameter (b)

0.120

Transit mid-time (BJD)

2,454,969.9065

Angular separation (arcsec)

0.46700

Eq. Temperature

591K

(318 °C)

Insolation (S⊕)

26.37

Earth = 1.00

Earth Similarity (ESI)

0.527

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

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-352

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,212 K — cooler than the Sun (5,778 K)

Estimated Age

1.70 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.781 R☉

Stellar Mass

0.798 M☉

Metallicity [Fe/H]

-0.11

Extended Stellar Properties

Surface gravity (log g)

4.566 dex

Stellar density

2.010 g/cm³

Systemic radial velocity

-5.87 km/s

Metallicity ratio

[Fe/H]

Distance

252.73 parsec

Light-years 824.30 ly

V-band magnitude

13.14 mag

Voyager-speed travel 14,536,597 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

3.928 mas

Total Proper Motion

24.538 mas/yr

PM Right Ascension

13.85 mas/yr

PM Declination

-20.25 mas/yr

Galactic Cartesian (pc)

x = 0.346 · y = -0.602 · z = 0.720

Equatorial (J2000)

RA 299.89662° · Dec 46.05190°

Galactic ℓ, b

80.798° · 8.472°

Ecliptic λ, β

322.477° · 64.143°

HTM-20 index

-1955098591