Key parameters at a glance

A radius of 1.43 Earth radii
A mass of 2.63 Earth masses
Surface gravity around 1.29 g
An orbital period of 8.839 days
Semi-major axis 0.0795 AU
Equilibrium temperature 778 K (505 °C)
Distance from Earth 2,069.72 light-years
Earth Similarity Index 0.394
Travel time at Voyager 1 speed 36,499,523 years

Kepler-1302 b Planet Profile

Physical Specs

Radius

1.43 R⊕

Radius (Jupiter)

0.128 R♃

Mass

2.63 M⊕

Mass (Jupiter)

0.008 M♃

Density

4.94 g/cm³

Surface Gravity

1.29 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.394

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

#864of 1176

top 73.4%

This planet

1.43R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-334 c 1.43 R⊕ Kepler-399 c 1.43 R⊕ Kepler-311 c 1.43 R⊕

Metric	Earth	Kepler-1302 b	Jupiter
Radius (R⊕)	1.00	1.43	11.21
Mass (M⊕)	1.00	2.63	317.83
Density (g/cm³)	5.51	4.94	1.33
Surface Gravity (g)	1.00	1.29	2.53
Insolation (S⊕)	1.00	58.34	0.037

Star Catalogue Identifiers

TIC

TIC 417678115

Gaia DR2

Gaia DR2 2130136176312202624

Gaia DR3

Gaia DR3 2130136176312202624

System

Kepler-1302

Percentile among Super-Earth cohort

Radius 1.430 R⊕ · percentile 25 / cohort 1176

Mass 2.630 M⊕ · percentile 24 / cohort 1176

Orbital period 8.84 d · percentile 61 / cohort 1164

Distance 634.58 pc · percentile 57 / cohort 1171

ESI 0.394 · percentile 59 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

8.839 days

Semi-major axis

0.0795 AU

Eccentricity

0.000

Inclination

86.88 °

Year Length

A year here lasts approximately 8.84 Earth days (2.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0795 AU.

Transit Fingerprint

Depth

0.032 %

Duration

1.803 h

Impact parameter b

0.091

Rp / R★

0.015530

Transit midpoint (BJD)

2,454,968.5470

Photometric dip

Transit produces a flux drop of 316 ppm lasting ≈ 1.80 h.

Extended Orbital Architecture

Planet / star radius ratio

0.015530

Semi-major axis / stellar radius

37.880

Impact parameter (b)

0.091

Transit mid-time (BJD)

2,454,968.5470

Angular separation (arcsec)

0.12500

Eq. Temperature

778K

(505 °C)

Insolation (S⊕)

58.34

Earth = 1.00

Earth Similarity (ESI)

0.394

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-1302

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,236 K — cooler than the Sun (5,778 K)

Estimated Age

4.68 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.820 R☉

Stellar Mass

0.860 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.550 dex

Stellar density

13.162 g/cm³

Metallicity ratio

[Fe/H]

Distance

634.58 parsec

Light-years 2,069.72 ly

V-band magnitude

15.17 mag

Voyager-speed travel 36,499,523 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.547 mas

Total Proper Motion

1.892 mas/yr

PM Right Ascension

-1.67 mas/yr

PM Declination

0.89 mas/yr

Galactic Cartesian (pc)

x = 0.229 · y = -0.596 · z = 0.769

Equatorial (J2000)

RA 290.98925° · Dec 50.30806°

Galactic ℓ, b

81.882° · 15.694°

Ecliptic λ, β

313.505° · 70.593°

HTM-20 index

891984961