Key parameters at a glance

A radius of 1.55 Earth radii
A mass of 3.02 Earth masses
Surface gravity around 1.26 g
An orbital period of 2.132 days
Semi-major axis 0.0335 AU
Equilibrium temperature 1,418 K (1145 °C)
Distance from Earth 3,598.45 light-years
Earth Similarity Index 0.200
Travel time at Voyager 1 speed 63,458,601 years

Kepler-1282 b Planet Profile

Physical Specs

Radius

1.55 R⊕

Radius (Jupiter)

0.138 R♃

Mass

3.02 M⊕

Mass (Jupiter)

0.010 M♃

Density

4.46 g/cm³

Surface Gravity

1.26 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.200

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

#652of 1176

top 55.4%

This planet

1.55R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-55 e 1.55 R⊕ Kepler-132 d 1.55 R⊕ Kepler-226 b 1.55 R⊕

Metric	Earth	Kepler-1282 b	Jupiter
Radius (R⊕)	1.00	1.55	11.21
Mass (M⊕)	1.00	3.02	317.83
Density (g/cm³)	5.51	4.46	1.33
Surface Gravity (g)	1.00	1.26	2.53
Insolation (S⊕)	1.00	672.53	0.037

Star Catalogue Identifiers

TIC

TIC 159301148

Gaia DR2

Gaia DR2 2127812564645370880

Gaia DR3

Gaia DR3 2127812564645370880

System

Kepler-1282

Percentile among Super-Earth cohort

Radius 1.550 R⊕ · percentile 43 / cohort 1176

Mass 3.020 M⊕ · percentile 39 / cohort 1176

Orbital period 2.13 d · percentile 13 / cohort 1164

Distance 1,103.29 pc · percentile 86 / cohort 1171

ESI 0.200 · percentile 12 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

2.132 days

Semi-major axis

0.0335 AU

Eccentricity

0.000

Inclination

88.66 °

Year Length

A year here lasts approximately 2.13 Earth days (0.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0335 AU.

Transit Fingerprint

Depth

0.027 %

Duration

1.818 h

Impact parameter b

0.209

Rp / R★

0.015667

Transit midpoint (BJD)

2,454,966.6538

Photometric dip

Transit produces a flux drop of 269 ppm lasting ≈ 1.82 h.

Extended Orbital Architecture

Planet / star radius ratio

0.015667

Semi-major axis / stellar radius

8.330

Impact parameter (b)

0.209

Transit mid-time (BJD)

2,454,966.6538

Angular separation (arcsec)

0.03040

Eq. Temperature

1,418K

(1145 °C)

Insolation (S⊕)

672.53

Earth = 1.00

Earth Similarity (ESI)

0.200

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-1282

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,504 K — cooler than the Sun (5,778 K)

Estimated Age

4.57 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.890 R☉

Stellar Mass

0.920 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.510 dex

Stellar density

3.010 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,103.29 parsec

Light-years 3,598.45 ly

V-band magnitude

15.71 mag

Voyager-speed travel 63,458,601 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.878 mas

Total Proper Motion

5.857 mas/yr

PM Right Ascension

2.47 mas/yr

PM Declination

-5.31 mas/yr

Galactic Cartesian (pc)

x = 0.237 · y = -0.644 · z = 0.728

Equatorial (J2000)

RA 290.17617° · Dec 46.69830°

Galactic ℓ, b

78.236° · 14.721°

Ecliptic λ, β

308.146° · 67.484°

HTM-20 index

-459733018