Key parameters at a glance

A radius of 1.19 Earth radii
A mass of 1.81 Earth masses
Surface gravity around 1.28 g
An orbital period of 14.427 days
Semi-major axis 0.1161 AU
Equilibrium temperature 783 K (510 °C)
Distance from Earth 2,127.36 light-years
Earth Similarity Index 0.404
Travel time at Voyager 1 speed 37,516,032 years

Kepler-1473 b Planet Profile

Physical Specs

Radius

1.19 R⊕

Radius (Jupiter)

0.106 R♃

Mass

1.81 M⊕

Mass (Jupiter)

0.006 M♃

Density

5.90 g/cm³

Surface Gravity

1.28 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.404

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

#101of 570

top 17.5%

This planet

1.19R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

KOI-351 c 1.19 R⊕ Kepler-953 c 1.19 R⊕ Kepler-310 b 1.19 R⊕

Metric	Earth	Kepler-1473 b	Jupiter
Radius (R⊕)	1.00	1.19	11.21
Mass (M⊕)	1.00	1.81	317.83
Density (g/cm³)	5.51	5.90	1.33
Surface Gravity (g)	1.00	1.28	2.53
Insolation (S⊕)	1.00	111.01	0.037

Star Catalogue Identifiers

TIC

TIC 290034635

Gaia DR2

Gaia DR2 2129558760909448064

Gaia DR3

Gaia DR3 2129558760909448064

System

Kepler-1473

Percentile among Rocky Terrestrial cohort

Radius 1.190 R⊕ · percentile 80 / cohort 570

Mass 1.810 M⊕ · percentile 74 / cohort 570

Orbital period 14.43 d · percentile 87 / cohort 567

Distance 652.25 pc · percentile 77 / cohort 566

ESI 0.404 · percentile 60 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

14.427 days

Semi-major axis

0.1161 AU

Eccentricity

0.000

Inclination

80.92 °

Year Length

A year here lasts approximately 14.43 Earth days (3.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1161 AU.

Transit Fingerprint

Depth

0.012 %

Duration

3.890 h

Impact parameter b

0.243

Rp / R★

0.010118

Transit midpoint (BJD)

2,454,971.8413

Photometric dip

Transit produces a flux drop of 117 ppm lasting ≈ 3.89 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010118

Semi-major axis / stellar radius

6.190

Impact parameter (b)

0.243

Transit mid-time (BJD)

2,454,971.8413

Angular separation (arcsec)

0.17800

Eq. Temperature

783K

(510 °C)

Insolation (S⊕)

111.01

Earth = 1.00

Earth Similarity (ESI)

0.404

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-1473

Spectral Class

F-type yellow-white

Effective Temperature

6,046 K — hotter than the Sun (5,778 K)

Estimated Age

2.63 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.090 R☉

Stellar Mass

1.090 M☉

Metallicity [Fe/H]

-0.01

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

0.660 g/cm³

Metallicity ratio

[Fe/H]

Distance

652.25 parsec

Light-years 2,127.36 ly

V-band magnitude

13.49 mag

Voyager-speed travel 37,516,032 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.504 mas

Total Proper Motion

15.102 mas/yr

PM Right Ascension

-13.27 mas/yr

PM Declination

-7.21 mas/yr

Galactic Cartesian (pc)

x = 0.231 · y = -0.614 · z = 0.755

Equatorial (J2000)

RA 290.63651° · Dec 48.99615°

Galactic ℓ, b

80.540° · 15.373°

Ecliptic λ, β

311.302° · 69.493°

HTM-20 index

362332094