Confirmed Exoplanet Discovered 2016

Kepler-545 b

A sub-neptune orbiting the g-type yellow (sun-like) Kepler-545, located approximately 2,668.0 light-years from Earth.

Key parameters at a glance

  • A radius of 2.69 Earth radii
  • A mass of 7.70 Earth masses
  • Surface gravity around 1.06 g
  • An orbital period of 13.249 days
  • Semi-major axis 0.1125 AU
  • Equilibrium temperature 806 K (533 °C)
  • Distance from Earth 2,667.96 light-years
  • Earth Similarity Index 0.305
  • Travel time at Voyager 1 speed 47,049,460 years

Kepler-545 b Planet Profile

Physical Specs

Radius
2.69 R⊕
Radius (Jupiter)
0.240 R♃
Mass
7.70 M⊕
Mass (Jupiter)
0.024 M♃
Density
2.17 g/cm³
Surface Gravity
1.06 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.305
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

#881of 1978

top 44.5%

This planet

2.69R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth Kepler-545 b Jupiter
Radius (R⊕)1.002.6911.21
Mass (M⊕)1.007.70317.83
Density (g/cm³)5.512.171.33
Surface Gravity (g)1.001.062.53
Insolation (S⊕)1.00101.140.037

Star Catalogue Identifiers

TIC

TIC 122446089

Gaia DR2

Gaia DR2 2101191326556650368

Gaia DR3

Gaia DR3 2101191326556650368

System

Kepler-545

Percentile among Sub-Neptune cohort

Radius 2.690 R⊕ · percentile 55 / cohort 1978
Mass 7.700 M⊕ · percentile 51 / cohort 1978
Orbital period 13.25 d · percentile 45 / cohort 1946
Distance 818.00 pc · percentile 66 / cohort 1975
ESI 0.305 · percentile 29 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
13.249 days
Semi-major axis
0.1125 AU
Eccentricity
0.000
Inclination
88.07 °

Year Length

A year here lasts approximately 13.25 Earth days (3.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1125 AU.

Transit Fingerprint

Depth

0.065 %

Duration

4.463 h

Impact parameter b

0.350

Rp / R★

0.023423

Transit midpoint (BJD)

2,455,012.5208

Photometric dip

Transit produces a flux drop of 648 ppm lasting ≈ 4.46 h.

Extended Orbital Architecture

Planet / star radius ratio

0.023423

Semi-major axis / stellar radius

21.820

Impact parameter (b)

0.350

Transit mid-time (BJD)

2,455,012.5208

Angular separation (arcsec)

0.13800

Eq. Temperature

806K

(533 °C)

Insolation (S⊕)

101.14

Earth = 1.00

Earth Similarity (ESI)

0.305

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-545

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,882 K — hotter than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.070 R☉

Stellar Mass

1.040 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.390 dex

Stellar density

0.960 g/cm³

Metallicity ratio

[Fe/H]

Distance
818.00 parsec
Light-years 2,667.96 ly
V-band magnitude
14.21 mag
Voyager-speed travel 47,049,460 yr

Multi-band Host Photometry — 16 bands

9.415.015.02B14.21V14.11Gaia14.15Kepler13.66TESS14.58Sloan g14.07Sloan r13.97Sloan i13.93Sloan z13.07J12.78H12.71K12.66W112.72W212.68W39.42W4

Astrometric Data

Parallax

1.194 mas

Total Proper Motion

4.139 mas/yr

PM Right Ascension

1.92 mas/yr

PM Declination

3.66 mas/yr

Galactic Cartesian (pc)

x = 0.266 · y = -0.710 · z = 0.652

Equatorial (J2000)

RA 290.56632° · Dec 40.69208°

Galactic ℓ, b

72.759° · 11.935°

Ecliptic λ, β

304.193° · 61.712°

HTM-20 index

-1072384895

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