Confirmed Exoplanet Discovered 2016

Kepler-1622 b

A super-earth orbiting the f-type yellow-white Kepler-1622, located approximately 2,597.8 light-years from Earth.

Key parameters at a glance

  • A radius of 1.47 Earth radii
  • A mass of 2.76 Earth masses
  • Surface gravity around 1.28 g
  • An orbital period of 10.812 days
  • Semi-major axis 0.1014 AU
  • Equilibrium temperature 922 K (649 °C)
  • Distance from Earth 2,597.76 light-years
  • Earth Similarity Index 0.328
  • Travel time at Voyager 1 speed 45,811,451 years

Kepler-1622 b Planet Profile

Physical Specs

Radius
1.47 R⊕
Radius (Jupiter)
0.131 R♃
Mass
2.76 M⊕
Mass (Jupiter)
0.009 M♃
Density
4.77 g/cm³
Surface Gravity
1.28 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.328
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

#802of 1176

top 68.1%

This planet

1.47R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1622 b Jupiter
Radius (R⊕)1.001.4711.21
Mass (M⊕)1.002.76317.83
Density (g/cm³)5.514.771.33
Surface Gravity (g)1.001.282.53
Insolation (S⊕)1.00236.010.037

Star Catalogue Identifiers

TIC

TIC 273047792

Gaia DR2

Gaia DR2 2086419903235549312

Gaia DR3

Gaia DR3 2086419903235549312

System

Kepler-1622

Percentile among Super-Earth cohort

Radius 1.470 R⊕ · percentile 31 / cohort 1176
Mass 2.760 M⊕ · percentile 29 / cohort 1176
Orbital period 10.81 d · percentile 67 / cohort 1164
Distance 796.48 pc · percentile 67 / cohort 1171
ESI 0.328 · percentile 44 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
10.812 days
Semi-major axis
0.1014 AU
Eccentricity
0.000
Inclination
86.49 °

Year Length

A year here lasts approximately 10.81 Earth days (3.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1014 AU.

Transit Fingerprint

Depth

0.009 %

Duration

2.611 h

Impact parameter b

0.896

Rp / R★

0.008832

Transit midpoint (BJD)

2,454,970.1323

Photometric dip

Transit produces a flux drop of 88 ppm lasting ≈ 2.61 h.

Extended Orbital Architecture

Planet / star radius ratio

0.008832

Semi-major axis / stellar radius

14.630

Impact parameter (b)

0.896

Transit mid-time (BJD)

2,454,970.1323

Angular separation (arcsec)

0.12700

Eq. Temperature

922K

(649 °C)

Insolation (S⊕)

236.01

Earth = 1.00

Earth Similarity (ESI)

0.328

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-1622

Spectral Class

F-type yellow-white

Effective Temperature

6,436 K — hotter than the Sun (5,778 K)

Estimated Age

2.19 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.500 R☉

Stellar Mass

1.310 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.200 dex

Stellar density

0.550 g/cm³

Metallicity ratio

[Fe/H]

Distance
796.48 parsec
Light-years 2,597.76 ly
V-band magnitude
13.44 mag
Voyager-speed travel 45,811,451 yr

Multi-band Host Photometry — 16 bands

9.713.913.91B13.44V13.34Gaia13.39Kepler12.95TESS13.71Sloan g13.33Sloan r13.24Sloan i13.20Sloan z12.42J12.18H12.10K12.08W112.12W212.45W39.67W4

Astrometric Data

Parallax

1.227 mas

Total Proper Motion

4.032 mas/yr

PM Right Ascension

-3.96 mas/yr

PM Declination

-0.77 mas/yr

Galactic Cartesian (pc)

x = 0.308 · y = -0.597 · z = 0.741

Equatorial (J2000)

RA 297.32883° · Dec 47.81546°

Galactic ℓ, b

81.472° · 10.868°

Ecliptic λ, β

320.667° · 66.512°

HTM-20 index

1275684708

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