Key parameters at a glance

A radius of 1.20 Earth radii
A mass of 1.87 Earth masses
Surface gravity around 1.30 g
An orbital period of 13.639 days
Semi-major axis 0.1060 AU
Equilibrium temperature 717 K (444 °C)
Distance from Earth 4,362.70 light-years
Earth Similarity Index 0.440
Travel time at Voyager 1 speed 76,936,127 years

3 siblings around Kepler-282

Kepler-282 c shares its host star with 3 other confirmed planets. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-282 b	Rocky Terrestrial	1.01	1.01	9.221	817	2014
Kepler-282 c this	Rocky Terrestrial	1.20	1.87	13.639	717	2014
Kepler-282 d	Sub-Neptune	2.46	61.00	24.806	588	2013
Kepler-282 e	Sub-Neptune	3.10	56.20	44.347	484	2013

Kepler-282 c Planet Profile

Physical Specs

Radius

1.20 R⊕

Radius (Jupiter)

0.107 R♃

Mass

1.87 M⊕

Mass (Jupiter)

0.006 M♃

Density

5.95 g/cm³

Surface Gravity

1.30 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.440

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#75of 570

top 13.0%

This planet

1.20R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-225 b 1.20 R⊕ Kepler-367 c 1.20 R⊕ Kepler-208 d 1.20 R⊕

Metric	Earth	Kepler-282 c	Jupiter
Radius (R⊕)	1.00	1.20	11.21
Mass (M⊕)	1.00	1.87	317.83
Density (g/cm³)	5.51	5.95	1.33
Surface Gravity (g)	1.00	1.30	2.53
Insolation (S⊕)	1.00	116.12	0.037

Star Catalogue Identifiers

TIC

TIC 164779321

Gaia DR2

Gaia DR2 2106739943262307200

Gaia DR3

Gaia DR3 2106739943262307200

System

Kepler-282

Percentile among Rocky Terrestrial cohort

Radius 1.200 R⊕ · percentile 84 / cohort 570

Mass 1.870 M⊕ · percentile 77 / cohort 570

Orbital period 13.64 d · percentile 86 / cohort 567

Distance 1,337.61 pc · percentile 98 / cohort 566

ESI 0.440 · percentile 64 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

13.639 days

Semi-major axis

0.1060 AU

Eccentricity

0.000

Inclination

89.69 °

Year Length

A year here lasts approximately 13.64 Earth days (3.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1060 AU.

Transit Fingerprint

Depth

0.016 %

Duration

5.573 h

Impact parameter b

0.070

Rp / R★

0.011586

Transit midpoint (BJD)

2,454,974.7781

Photometric dip

Transit produces a flux drop of 163 ppm lasting ≈ 5.57 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011586

Semi-major axis / stellar radius

19.330

Impact parameter (b)

0.070

Transit mid-time (BJD)

2,454,974.7781

Angular separation (arcsec)

0.07920

Eq. Temperature

717K

(444 °C)

Insolation (S⊕)

116.12

Earth = 1.00

Earth Similarity (ESI)

0.440

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

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-282

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,602 K — cooler than the Sun (5,778 K)

Estimated Age

12.88 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.904 R☉

Stellar Mass

0.860 M☉

Metallicity [Fe/H]

-0.20

Extended Stellar Properties

Surface gravity (log g)

4.459 dex

Stellar density

0.640 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,337.61 parsec

Light-years 4,362.70 ly

V-band magnitude

15.44 mag

Voyager-speed travel 76,936,127 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.719 mas

Total Proper Motion

8.884 mas/yr

PM Right Ascension

-6.56 mas/yr

PM Declination

-5.99 mas/yr

Galactic Cartesian (pc)

x = 0.180 · y = -0.686 · z = 0.705

Equatorial (J2000)

RA 284.67724° · Dec 44.79764°

Galactic ℓ, b

74.876° · 17.533°

Ecliptic λ, β

297.217° · 66.855°

HTM-20 index

965524275