Key parameters at a glance

A radius of 1.16 Earth radii
A mass of 1.65 Earth masses
Surface gravity around 1.23 g
An orbital period of 1.291 days
Semi-major axis 0.0260 AU
Equilibrium temperature 1,887 K (1614 °C)
Distance from Earth 5,542.89 light-years
Earth Similarity Index 0.151
Travel time at Voyager 1 speed 97,748,873 years

Kepler-1373 b Planet Profile

Physical Specs

Radius

1.16 R⊕

Radius (Jupiter)

0.103 R♃

Mass

1.65 M⊕

Mass (Jupiter)

0.005 M♃

Density

5.81 g/cm³

Surface Gravity

1.23 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.151

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

#147of 570

top 25.6%

This planet

1.16R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-363 b 1.16 R⊕ OGLE-2013-BLG-0341L B b 1.16 R⊕ Kepler-316 c 1.16 R⊕

Metric	Earth	Kepler-1373 b	Jupiter
Radius (R⊕)	1.00	1.16	11.21
Mass (M⊕)	1.00	1.65	317.83
Density (g/cm³)	5.51	5.81	1.33
Surface Gravity (g)	1.00	1.23	2.53
Insolation (S⊕)	1.00	8,385.90	0.037

Star Catalogue Identifiers

TIC

TIC 120627712

Gaia DR2

Gaia DR2 2100265950078767232

Gaia DR3

Gaia DR3 2100265950078767232

System

Kepler-1373

Percentile among Rocky Terrestrial cohort

Radius 1.160 R⊕ · percentile 73 / cohort 570

Mass 1.650 M⊕ · percentile 66 / cohort 570

Orbital period 1.29 d · percentile 14 / cohort 567

Distance 1,699.46 pc · percentile 99 / cohort 566

ESI 0.151 · percentile 5 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

1.291 days

Semi-major axis

0.0260 AU

Eccentricity

0.000

Inclination

87.84 °

Year Length

A year here lasts approximately 1.29 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0260 AU.

Transit Fingerprint

Depth

0.007 %

Duration

1.876 h

Impact parameter b

0.020

Rp / R★

0.007756

Transit midpoint (BJD)

2,454,964.9894

Photometric dip

Transit produces a flux drop of 66 ppm lasting ≈ 1.88 h.

Extended Orbital Architecture

Planet / star radius ratio

0.007756

Semi-major axis / stellar radius

5.040

Impact parameter (b)

0.020

Transit mid-time (BJD)

2,454,964.9894

Angular separation (arcsec)

0.01530

Eq. Temperature

1,887K

(1614 °C)

Insolation (S⊕)

8,385.90

Earth = 1.00

Earth Similarity (ESI)

0.151

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-1373

Spectral Class

F-type yellow-white

Effective Temperature

6,299 K — hotter than the Sun (5,778 K)

Estimated Age

2.51 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.330 R☉

Stellar Mass

1.220 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.270 dex

Stellar density

0.180 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,699.46 parsec

Light-years 5,542.89 ly

V-band magnitude

14.33 mag

Voyager-speed travel 97,748,873 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

0.560 mas

Total Proper Motion

7.751 mas/yr

PM Right Ascension

-4.88 mas/yr

PM Declination

-6.03 mas/yr

Galactic Cartesian (pc)

x = 0.210 · y = -0.745 · z = 0.633

Equatorial (J2000)

RA 285.75202° · Dec 39.24917°

Galactic ℓ, b

69.842° · 14.698°

Ecliptic λ, β

295.938° · 61.277°

HTM-20 index

284675915