Key parameters at a glance

A radius of 1.05 Earth radii
A mass of 1.16 Earth masses
Surface gravity around 1.05 g
An orbital period of 5.309 days
Semi-major axis 0.0598 AU
Equilibrium temperature 1,042 K (769 °C)
Distance from Earth 2,831.22 light-years
Earth Similarity Index 0.309
Travel time at Voyager 1 speed 49,928,504 years

Kepler-1376 b Planet Profile

Physical Specs

Radius

1.05 R⊕

Radius (Jupiter)

0.094 R♃

Mass

1.16 M⊕

Mass (Jupiter)

0.004 M♃

Density

5.51 g/cm³

Surface Gravity

1.05 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.309

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

#279of 570

top 48.8%

This planet

1.05R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1331 b 1.05 R⊕ Kepler-625 c 1.05 R⊕ Kepler-163 b 1.05 R⊕

Metric	Earth	Kepler-1376 b	Jupiter
Radius (R⊕)	1.00	1.05	11.21
Mass (M⊕)	1.00	1.16	317.83
Density (g/cm³)	5.51	5.51	1.33
Surface Gravity (g)	1.00	1.05	2.53
Insolation (S⊕)	1.00	278.90	0.037

Star Catalogue Identifiers

TIC

TIC 158386680

Gaia DR2

Gaia DR2 2105478425469064064

Gaia DR3

Gaia DR3 2105478425469064064

System

Kepler-1376

Percentile among Rocky Terrestrial cohort

Radius 1.050 R⊕ · percentile 50 / cohort 570

Mass 1.160 M⊕ · percentile 45 / cohort 570

Orbital period 5.31 d · percentile 56 / cohort 567

Distance 868.06 pc · percentile 90 / cohort 566

ESI 0.309 · percentile 41 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

5.309 days

Semi-major axis

0.0598 AU

Eccentricity

0.000

Inclination

89.26 °

Year Length

A year here lasts approximately 5.31 Earth days (1.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0598 AU.

Transit Fingerprint

Depth

0.013 %

Duration

3.018 h

Impact parameter b

0.173

Rp / R★

0.010296

Transit midpoint (BJD)

2,454,967.2441

Photometric dip

Transit produces a flux drop of 128 ppm lasting ≈ 3.02 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010296

Semi-major axis / stellar radius

13.579

Impact parameter (b)

0.173

Transit mid-time (BJD)

2,454,967.2441

Angular separation (arcsec)

0.06890

Eq. Temperature

1,042K

(769 °C)

Insolation (S⊕)

278.90

Earth = 1.00

Earth Similarity (ESI)

0.309

0 = alien, 1 = Earth-identical

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

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-1376

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,659 K — cooler than the Sun (5,778 K)

Estimated Age

4.68 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.970 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.460 dex

Stellar density

1.681 g/cm³

Metallicity ratio

[Fe/H]

Distance

868.06 parsec

Light-years 2,831.22 ly

V-band magnitude

14.79 mag

Voyager-speed travel 49,928,504 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.123 mas

Total Proper Motion

1.548 mas/yr

PM Right Ascension

-1.43 mas/yr

PM Declination

0.59 mas/yr

Galactic Cartesian (pc)

x = 0.215 · y = -0.705 · z = 0.676

Equatorial (J2000)

RA 286.95844° · Dec 42.54141°

Galactic ℓ, b

73.346° · 15.155°

Ecliptic λ, β

299.639° · 64.246°

HTM-20 index

-2046145122