Key parameters at a glance

A radius of 1.10 Earth radii
A mass of 1.37 Earth masses
Surface gravity around 1.13 g
An orbital period of 3.283 days
Semi-major axis 0.0420 AU
Equilibrium temperature 1,467 K (1194 °C)
Distance from Earth 4,127.86 light-years
Earth Similarity Index 0.207
Travel time at Voyager 1 speed 72,794,859 years

2 siblings around Kepler-374

Kepler-374 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-374 b	Rocky Terrestrial	1.03	1.08	1.898	1,761	2014
Kepler-374 c this	Rocky Terrestrial	1.10	1.37	3.283	1,467	2014
Kepler-374 d	Super-Earth	1.31	2.27	5.028	1,272	2014

Kepler-374 c Planet Profile

Physical Specs

Radius

1.10 R⊕

Radius (Jupiter)

0.098 R♃

Mass

1.37 M⊕

Mass (Jupiter)

0.004 M♃

Density

5.66 g/cm³

Surface Gravity

1.13 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.207

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

#224of 570

top 39.1%

This planet

1.10R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-392 c 1.10 R⊕ Kepler-59 b 1.10 R⊕ K2-239 d 1.10 R⊕

Metric	Earth	Kepler-374 c	Jupiter
Radius (R⊕)	1.00	1.10	11.21
Mass (M⊕)	1.00	1.37	317.83
Density (g/cm³)	5.51	5.66	1.33
Surface Gravity (g)	1.00	1.13	2.53
Insolation (S⊕)	1.00	966.59	0.037

Star Catalogue Identifiers

TIC

TIC 270863576

Gaia DR2

Gaia DR2 2077745168807120128

Gaia DR3

Gaia DR3 2077745168807120128

System

Kepler-374

Percentile among Rocky Terrestrial cohort

Radius 1.100 R⊕ · percentile 59 / cohort 570

Mass 1.370 M⊕ · percentile 54 / cohort 570

Orbital period 3.28 d · percentile 37 / cohort 567

Distance 1,265.61 pc · percentile 97 / cohort 566

ESI 0.207 · percentile 15 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

3.283 days

Semi-major axis

0.0420 AU

Eccentricity

0.000

Inclination

88.82 °

Year Length

A year here lasts approximately 3.28 Earth days (0.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0420 AU.

Transit Fingerprint

Depth

0.014 %

Duration

3.309 h

Impact parameter b

0.290

Rp / R★

0.010816

Transit midpoint (BJD)

2,454,964.8997

Photometric dip

Transit produces a flux drop of 143 ppm lasting ≈ 3.31 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010816

Semi-major axis / stellar radius

7.719

Impact parameter (b)

0.290

Transit mid-time (BJD)

2,454,964.8997

Angular separation (arcsec)

0.03320

Eq. Temperature

1,467K

(1194 °C)

Insolation (S⊕)

966.59

Earth = 1.00

Earth Similarity (ESI)

0.207

0 = alien, 1 = Earth-identical

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

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-374

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,977 K — hotter than the Sun (5,778 K)

Estimated Age

8.51 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.911 R☉

Stellar Mass

1.033 M☉

Metallicity [Fe/H]

0.11

Extended Stellar Properties

Surface gravity (log g)

4.479 dex

Stellar density

0.450 g/cm³

Metallicity ratio

[M/H]

Distance

1,265.61 parsec

Light-years 4,127.86 ly

V-band magnitude

14.70 mag

Voyager-speed travel 72,794,859 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.762 mas

Total Proper Motion

17.598 mas/yr

PM Right Ascension

-6.32 mas/yr

PM Declination

-16.42 mas/yr

Galactic Cartesian (pc)

x = 0.302 · y = -0.674 · z = 0.674

Equatorial (J2000)

RA 294.13789° · Dec 42.37041°

Galactic ℓ, b

75.507° · 10.294°

Ecliptic λ, β

310.757° · 62.436°

HTM-20 index

-859797177