Key parameters at a glance

A radius of 1.91 Earth radii
A mass of 4.31 Earth masses
Surface gravity around 1.18 g
An orbital period of 12.946 days
Semi-major axis 0.1062 AU
Equilibrium temperature 764 K (491 °C)
Distance from Earth 9,530.25 light-years
Earth Similarity Index 0.366
Travel time at Voyager 1 speed 168,065,874 years

Kepler-1283 b Planet Profile

Physical Specs

Radius

1.91 R⊕

Radius (Jupiter)

0.170 R♃

Mass

4.31 M⊕

Mass (Jupiter)

0.014 M♃

Density

3.40 g/cm³

Surface Gravity

1.18 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.366

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

#114of 1176

top 9.6%

This planet

1.91R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-1121 b 1.91 R⊕ Kepler-524 b 1.91 R⊕ Kepler-1306 b 1.91 R⊕

Metric	Earth	Kepler-1283 b	Jupiter
Radius (R⊕)	1.00	1.91	11.21
Mass (M⊕)	1.00	4.31	317.83
Density (g/cm³)	5.51	3.40	1.33
Surface Gravity (g)	1.00	1.18	2.53
Insolation (S⊕)	1.00	80.34	0.037

Star Catalogue Identifiers

TIC

TIC 184008951

Gaia DR2

Gaia DR2 2076599065376447488

Gaia DR3

Gaia DR3 2076599065376447488

System

Kepler-1283

Percentile among Super-Earth cohort

Radius 1.910 R⊕ · percentile 90 / cohort 1176

Mass 4.310 M⊕ · percentile 83 / cohort 1176

Orbital period 12.95 d · percentile 72 / cohort 1164

Distance 2,921.99 pc · percentile 99 / cohort 1171

ESI 0.366 · percentile 54 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

12.946 days

Semi-major axis

0.1062 AU

Eccentricity

0.000

Inclination

89.40 °

Year Length

A year here lasts approximately 12.95 Earth days (3.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1062 AU.

Transit Fingerprint

Depth

0.017 %

Duration

9.583 h

Impact parameter b

0.890

Rp / R★

0.013669

Transit midpoint (BJD)

2,454,972.4214

Photometric dip

Transit produces a flux drop of 169 ppm lasting ≈ 9.58 h.

Extended Orbital Architecture

Planet / star radius ratio

0.013669

Semi-major axis / stellar radius

10.416

Impact parameter (b)

0.890

Transit mid-time (BJD)

2,454,972.4214

Angular separation (arcsec)

0.03630

Eq. Temperature

764K

(491 °C)

Insolation (S⊕)

80.34

Earth = 1.00

Earth Similarity (ESI)

0.366

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-1283

Spectral Class

F-type yellow-white

Effective Temperature

6,175 K — hotter than the Sun (5,778 K)

Estimated Age

2.88 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.250 R☉

Stellar Mass

1.160 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.310 dex

Stellar density

0.128 g/cm³

Metallicity ratio

[Fe/H]

Distance

2,921.99 parsec

Light-years 9,530.25 ly

V-band magnitude

15.27 mag

Voyager-speed travel 168,065,874 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.315 mas

Total Proper Motion

9.459 mas/yr

PM Right Ascension

-3.82 mas/yr

PM Declination

-8.65 mas/yr

Galactic Cartesian (pc)

x = 0.326 · y = -0.684 · z = 0.653

Equatorial (J2000)

RA 295.46233° · Dec 40.77693°

Galactic ℓ, b

74.553° · 8.671°

Ecliptic λ, β

311.534° · 60.597°

HTM-20 index

-1496087181