Key parameters at a glance

A radius of 1.71 Earth radii
A mass of 3.57 Earth masses
Surface gravity around 1.22 g
An orbital period of 4.336 days
Semi-major axis 0.0564 AU
Equilibrium temperature 1,453 K (1180 °C)
Distance from Earth 1,331.70 light-years
Earth Similarity Index 0.188
Travel time at Voyager 1 speed 23,484,612 years

Kepler-1002 b Planet Profile

Physical Specs

Radius

1.71 R⊕

Radius (Jupiter)

0.153 R♃

Mass

3.57 M⊕

Mass (Jupiter)

0.011 M♃

Density

3.92 g/cm³

Surface Gravity

1.22 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.188

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

#385of 1176

top 32.7%

This planet

1.71R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-1167 b 1.71 R⊕ TOI-260 b 1.71 R⊕ KOI-94 b 1.71 R⊕

Metric	Earth	Kepler-1002 b	Jupiter
Radius (R⊕)	1.00	1.71	11.21
Mass (M⊕)	1.00	3.57	317.83
Density (g/cm³)	5.51	3.92	1.33
Surface Gravity (g)	1.00	1.22	2.53
Insolation (S⊕)	1.00	981.68	0.037

Star Catalogue Identifiers

TIC

TIC 275494505

Gaia DR2

Gaia DR2 2077837115462974080

Gaia DR3

Gaia DR3 2077837115462974080

System

Kepler-1002

Percentile among Super-Earth cohort

Radius 1.710 R⊕ · percentile 66 / cohort 1176

Mass 3.570 M⊕ · percentile 61 / cohort 1176

Orbital period 4.34 d · percentile 34 / cohort 1164

Distance 408.30 pc · percentile 40 / cohort 1171

ESI 0.188 · percentile 10 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

4.336 days

Semi-major axis

0.0564 AU

Eccentricity

0.000

Inclination

84.15 °

Year Length

A year here lasts approximately 4.34 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0564 AU.

Transit Fingerprint

Depth

0.011 %

Duration

4.103 h

Impact parameter b

0.796

Rp / R★

0.009578

Transit midpoint (BJD)

2,454,966.8560

Photometric dip

Transit produces a flux drop of 109 ppm lasting ≈ 4.10 h.

Extended Orbital Architecture

Planet / star radius ratio

0.009578

Semi-major axis / stellar radius

4.860

Impact parameter (b)

0.796

Transit mid-time (BJD)

2,454,966.8560

Angular separation (arcsec)

0.13800

Eq. Temperature

1,453K

(1180 °C)

Insolation (S⊕)

981.68

Earth = 1.00

Earth Similarity (ESI)

0.188

0 = alien, 1 = Earth-identical

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

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Transit timing variations

Gravitational interactions from neighbours have been detected.

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-1002

Spectral Class

F-type yellow-white

Effective Temperature

6,144 K — hotter than the Sun (5,778 K)

Estimated Age

4.07 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.570 R☉

Stellar Mass

1.220 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.130 dex

Stellar density

0.534 g/cm³

Systemic radial velocity

-44.69 km/s

Metallicity ratio

[Fe/H]

Distance

408.30 parsec

Light-years 1,331.70 ly

V-band magnitude

11.82 mag

Voyager-speed travel 23,484,612 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.698 mas

Total Proper Motion

15.103 mas/yr

PM Right Ascension

0.30 mas/yr

PM Declination

-15.10 mas/yr

Galactic Cartesian (pc)

x = 0.286 · y = -0.672 · z = 0.683

Equatorial (J2000)

RA 293.07946° · Dec 43.07368°

Galactic ℓ, b

75.784° · 11.307°

Ecliptic λ, β

309.697° · 63.367°

HTM-20 index

-102693004