Key parameters at a glance

A radius of 2.40 Earth radii
A mass of 6.35 Earth masses
Surface gravity around 1.10 g
An orbital period of 75.200 days
Distance from Earth 3,497.37 light-years
Earth Similarity Index 0.719
Travel time at Voyager 1 speed 61,676,130 years

2 siblings around KOI-7892

KIC 8540376 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-457 d	Sub-Neptune	2.98	9.19	10.691	1,008	2021
KIC 8540376 b	Neptune-like	4.10	15.80	31.810	—	2015
KIC 8540376 c this	Sub-Neptune	2.40	6.35	75.200	—	2015

KIC 8540376 c Planet Profile

Physical Specs

Radius

2.40 R⊕

Radius (Jupiter)

0.214 R♃

Mass

6.35 M⊕

Mass (Jupiter)

0.020 M♃

Density

2.52 g/cm³

Surface Gravity

1.10 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.719

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

#1333of 1978

top 67.3%

This planet

2.40R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-194 d 2.40 R⊕ Kepler-129 b 2.40 R⊕ Kepler-112 c 2.40 R⊕

Metric	Earth	KIC 8540376 c	Jupiter
Radius (R⊕)	1.00	2.40	11.21
Mass (M⊕)	1.00	6.35	317.83
Density (g/cm³)	5.51	2.52	1.33
Surface Gravity (g)	1.00	1.10	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 123449386

Gaia DR2

Gaia DR2 2105414310196331264

Gaia DR3

Gaia DR3 2105414310196331264

System

KOI-7892

Percentile among Sub-Neptune cohort

Radius 2.400 R⊕ · percentile 32 / cohort 1978

Mass 6.350 M⊕ · percentile 31 / cohort 1978

Orbital period 75.20 d · percentile 91 / cohort 1946

Distance 1,072.30 pc · percentile 82 / cohort 1975

ESI 0.719 · percentile 94 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

75.200 days

Semi-major axis

— AU

Eccentricity

—

Inclination

89.70 °

Year Length

A year here lasts approximately 75.20 Earth days (20.6% of a terrestrial year).

Transit Fingerprint

Depth

0.032 %

Rp / R★

0.018000

Transit midpoint (BJD)

2,456,349.9110

Photometric dip

Transit produces a flux drop of 324 ppm.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.719

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 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 Kepler-441 b · Super-Earth

Host System: KOI-7892

Spectral Class

F-type yellow-white

Effective Temperature

6,474 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.260 R☉

Stellar Mass

1.040 M☉

Metallicity [Fe/H]

-0.16

Extended Stellar Properties

Surface gravity (log g)

4.310 dex

Stellar density

0.319 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,072.30 parsec

Light-years 3,497.37 ly

V-band magnitude

14.41 mag

Voyager-speed travel 61,676,130 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.904 mas

Total Proper Motion

4.132 mas/yr

PM Right Ascension

2.83 mas/yr

PM Declination

-3.01 mas/yr

Galactic Cartesian (pc)

x = 0.152 · y = -0.694 · z = 0.703

Equatorial (J2000)

RA 282.37754° · Dec 44.69457°

Galactic ℓ, b

74.174° · 19.028°

Ecliptic λ, β

293.094° · 67.144°

HTM-20 index

-361451664