Confirmed Exoplanet Discovered 2016

Kepler-1262 b

A super-earth orbiting the g-type yellow (sun-like) Kepler-1262, located approximately 3,440.5 light-years from Earth.

Key parameters at a glance

  • A radius of 1.82 Earth radii
  • A mass of 3.97 Earth masses
  • Surface gravity around 1.20 g
  • An orbital period of 8.679 days
  • Semi-major axis 0.0830 AU
  • Equilibrium temperature 949 K (676 °C)
  • Distance from Earth 3,440.52 light-years
  • Earth Similarity Index 0.297
  • Travel time at Voyager 1 speed 60,673,599 years

Kepler-1262 b Planet Profile

Physical Specs

Radius
1.82 R⊕
Radius (Jupiter)
0.162 R♃
Mass
3.97 M⊕
Mass (Jupiter)
0.013 M♃
Density
3.62 g/cm³
Surface Gravity
1.20 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.297
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

#235of 1176

top 19.9%

This planet

1.82R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1262 b Jupiter
Radius (R⊕)1.001.8211.21
Mass (M⊕)1.003.97317.83
Density (g/cm³)5.513.621.33
Surface Gravity (g)1.001.202.53
Insolation (S⊕)1.00142.550.037

Star Catalogue Identifiers

TIC

TIC 158794459

Gaia DR2

Gaia DR2 2102321933746075776

Gaia DR3

Gaia DR3 2102321933746075776

System

Kepler-1262

Percentile among Super-Earth cohort

Radius 1.820 R⊕ · percentile 79 / cohort 1176
Mass 3.970 M⊕ · percentile 72 / cohort 1176
Orbital period 8.68 d · percentile 60 / cohort 1164
Distance 1,054.87 pc · percentile 84 / cohort 1171
ESI 0.297 · percentile 36 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
8.679 days
Semi-major axis
0.0830 AU
Eccentricity
0.000
Inclination
89.44 °

Year Length

A year here lasts approximately 8.68 Earth days (2.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0830 AU.

Transit Fingerprint

Depth

0.030 %

Duration

2.835 h

Impact parameter b

0.235

Rp / R★

0.016875

Transit midpoint (BJD)

2,454,973.9070

Photometric dip

Transit produces a flux drop of 302 ppm lasting ≈ 2.84 h.

Extended Orbital Architecture

Planet / star radius ratio

0.016875

Semi-major axis / stellar radius

22.950

Impact parameter (b)

0.235

Transit mid-time (BJD)

2,454,973.9070

Angular separation (arcsec)

0.07870

Eq. Temperature

949K

(676 °C)

Insolation (S⊕)

142.55

Earth = 1.00

Earth Similarity (ESI)

0.297

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

Host System: Kepler-1262

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,771 K — cooler than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.980 R☉

Stellar Mass

0.990 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

3.115 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,054.87 parsec
Light-years 3,440.52 ly
V-band magnitude
15.16 mag
Voyager-speed travel 60,673,599 yr

Multi-band Host Photometry — 16 bands

9.315.815.81B15.16V15.18Gaia15.18Kepler14.71TESS15.65Sloan g15.15Sloan r14.98Sloan i14.94Sloan z14.06J13.72H13.63K13.63W113.66W212.66W39.30W4

Astrometric Data

Parallax

0.920 mas

Total Proper Motion

11.097 mas/yr

PM Right Ascension

-0.39 mas/yr

PM Declination

-11.09 mas/yr

Galactic Cartesian (pc)

x = 0.238 · y = -0.701 · z = 0.672

Equatorial (J2000)

RA 288.77183° · Dec 42.21317°

Galactic ℓ, b

73.591° · 13.796°

Ecliptic λ, β

302.358° · 63.559°

HTM-20 index

-2011062774

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