Key parameters at a glance

A radius of 6.90 Earth radii
A mass of 38.10 Earth masses
Surface gravity around 0.80 g
An orbital period of 1,322.300 days
Distance from Earth 3,965.08 light-years
Earth Similarity Index 0.390
Travel time at Voyager 1 speed 69,924,155 years

KIC 3558849 b Planet Profile

Physical Specs

Radius

6.90 R⊕

Radius (Jupiter)

0.616 R♃

Mass

38.10 M⊕

Mass (Jupiter)

0.120 M♃

Density

0.64 g/cm³

Surface Gravity

0.80 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.390

HZ Position Unknown

Controversial No

Discovery

Year 2015

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#211of 574

top 36.6%

This planet

6.90R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

HD 25912 b 6.90 R⊕ KMT-2021-BLG-1554L b 6.90 R⊕ Kepler-522 b 6.91 R⊕

Metric	Earth	KIC 3558849 b	Jupiter
Radius (R⊕)	1.00	6.90	11.21
Mass (M⊕)	1.00	38.10	317.83
Density (g/cm³)	5.51	0.64	1.33
Surface Gravity (g)	1.00	0.80	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 138888805

Gaia DR2

Gaia DR2 2052136821446989568

Gaia DR3

Gaia DR3 2052136821446989568

System

KIC 3558849

Percentile among Neptune-like cohort

Radius 6.900 R⊕ · percentile 63 / cohort 574

Mass 38.100 M⊕ · percentile 60 / cohort 574

Orbital period 1,322.30 d · percentile 99 / cohort 524

Distance 1,215.70 pc · percentile 79 / cohort 572

ESI 0.390 · percentile 71 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

1,322.300 days

Semi-major axis

— AU

Eccentricity

—

Inclination

89.97 °

Year Length

A year here lasts about 3.62 Earth years.

Transit Fingerprint

Depth

0.397 %

Rp / R★

0.063000

Transit midpoint (BJD)

2,455,112.9200

Photometric dip

Transit produces a flux drop of 3,969 ppm.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.390

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Wang et al. 2015

Instrument

Kepler CCD Array

Publication

2015-12

Observation locale

Space

Discovery cohort

Planets confirmed in 2015 at Kepler (12 shown).

Kepler-438 b · Rocky Terrestrial Kepler-445 d · Super-Earth Kepler-442 b · Super-Earth Kepler-439 b · Sub-Neptune Kepler-437 b · Sub-Neptune Kepler-440 b · Super-Earth KIC 8540376 c · Sub-Neptune Kepler-445 b · Super-Earth Kepler-446 d · Super-Earth Kepler-436 b · Sub-Neptune Kepler-445 c · Sub-Neptune Kepler-443 b · Sub-Neptune

Host System: KIC 3558849

Spectral Class

F-type yellow-white

Effective Temperature

6,175 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.010 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

-0.42

Extended Stellar Properties

Surface gravity (log g)

4.440 dex

Stellar density

0.489 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,215.70 parsec

Light-years 3,965.08 ly

V-band magnitude

14.32 mag

Voyager-speed travel 69,924,155 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.794 mas

Total Proper Motion

3.374 mas/yr

PM Right Ascension

-1.73 mas/yr

PM Declination

2.90 mas/yr

Galactic Cartesian (pc)

x = 0.330 · y = -0.709 · z = 0.624

Equatorial (J2000)

RA 294.94984° · Dec 38.60519°

Galactic ℓ, b

72.434° · 7.981°

Ecliptic λ, β

309.357° · 58.683°

HTM-20 index

-1895436878