Key parameters at a glance

A radius of 2.29 Earth radii
A mass of 5.86 Earth masses
Surface gravity around 1.12 g
An orbital period of 10.653 days
Semi-major axis 0.0918 AU
Equilibrium temperature 737 K (464 °C)
Distance from Earth 3,517.46 light-years
Earth Similarity Index 0.356
Travel time at Voyager 1 speed 62,030,439 years

Kepler-1374 b Planet Profile

Physical Specs

Radius

2.29 R⊕

Radius (Jupiter)

0.204 R♃

Mass

5.86 M⊕

Mass (Jupiter)

0.018 M♃

Density

2.68 g/cm³

Surface Gravity

1.12 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.356

HZ Position Inner

Controversial No

Discovery

Year 2016

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#1519of 1978

top 76.7%

This planet

2.29R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-379 c 2.29 R⊕ Kepler-319 d 2.29 R⊕ Kepler-626 b 2.29 R⊕

Metric	Earth	Kepler-1374 b	Jupiter
Radius (R⊕)	1.00	2.29	11.21
Mass (M⊕)	1.00	5.86	317.83
Density (g/cm³)	5.51	2.68	1.33
Surface Gravity (g)	1.00	1.12	2.53
Insolation (S⊕)	1.00	59.79	0.037

Star Catalogue Identifiers

TIC

TIC 159722311

Gaia DR2

Gaia DR2 2126643543268551936

Gaia DR3

Gaia DR3 2126643543268551936

System

Kepler-1374

Percentile among Sub-Neptune cohort

Radius 2.290 R⊕ · percentile 23 / cohort 1978

Mass 5.860 M⊕ · percentile 22 / cohort 1978

Orbital period 10.65 d · percentile 37 / cohort 1946

Distance 1,078.46 pc · percentile 83 / cohort 1975

ESI 0.356 · percentile 42 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

10.653 days

Semi-major axis

0.0918 AU

Eccentricity

0.000

Inclination

89.91 °

Year Length

A year here lasts approximately 10.65 Earth days (2.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0918 AU.

Transit Fingerprint

Depth

0.085 %

Duration

2.711 h

Impact parameter b

0.052

Rp / R★

0.026473

Transit midpoint (BJD)

2,454,969.0893

Photometric dip

Transit produces a flux drop of 854 ppm lasting ≈ 2.71 h.

Extended Orbital Architecture

Planet / star radius ratio

0.026473

Semi-major axis / stellar radius

30.780

Impact parameter (b)

0.052

Transit mid-time (BJD)

2,454,969.0893

Angular separation (arcsec)

0.08510

Eq. Temperature

737K

(464 °C)

Insolation (S⊕)

59.79

Earth = 1.00

Earth Similarity (ESI)

0.356

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

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-1374

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,323 K — cooler than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.810 R☉

Stellar Mass

0.850 M☉

Metallicity [Fe/H]

-0.13

Extended Stellar Properties

Surface gravity (log g)

4.560 dex

Stellar density

4.861 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,078.46 parsec

Light-years 3,517.46 ly

V-band magnitude

15.99 mag

Voyager-speed travel 62,030,439 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.899 mas

Total Proper Motion

6.497 mas/yr

PM Right Ascension

-1.11 mas/yr

PM Declination

-6.40 mas/yr

Galactic Cartesian (pc)

x = 0.257 · y = -0.657 · z = 0.709

Equatorial (J2000)

RA 291.34998° · Dec 45.17225°

Galactic ℓ, b

77.158° · 13.342°

Ecliptic λ, β

308.701° · 65.767°

HTM-20 index

1396403624