Key parameters at a glance

A radius of 0.90 Earth radii
A mass of 0.67 Earth masses
Surface gravity around 0.82 g
An orbital period of 0.693 days
Semi-major axis 0.0156 AU
Equilibrium temperature 3,186 K (2913 °C)
Distance from Earth 2,200.56 light-years
Earth Similarity Index 0.079
Travel time at Voyager 1 speed 38,806,842 years

Kepler-1547 b Planet Profile

Physical Specs

Radius

0.90 R⊕

Radius (Jupiter)

0.080 R♃

Mass

0.67 M⊕

Mass (Jupiter)

0.002 M♃

Density

5.02 g/cm³

Surface Gravity

0.82 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.079

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

#415of 570

top 72.6%

This planet

0.90R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1398 b 0.90 R⊕ TOI-540 b 0.90 R⊕ Kepler-1759 b 0.90 R⊕

Metric	Earth	Kepler-1547 b	Jupiter
Radius (R⊕)	1.00	0.90	11.21
Mass (M⊕)	1.00	0.67	317.83
Density (g/cm³)	5.51	5.02	1.33
Surface Gravity (g)	1.00	0.82	2.53
Insolation (S⊕)	1.00	5,760.94	0.037

Star Catalogue Identifiers

TIC

TIC 164646094

Gaia DR2

Gaia DR2 2104890633423618048

Gaia DR3

Gaia DR3 2104890633423618048

System

Kepler-1547

Percentile among Rocky Terrestrial cohort

Radius 0.900 R⊕ · percentile 27 / cohort 570

Mass 0.666 M⊕ · percentile 23 / cohort 570

Orbital period 0.69 d · percentile 6 / cohort 567

Distance 674.70 pc · percentile 78 / cohort 566

ESI 0.079 · percentile 0 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

0.693 days

Semi-major axis

0.0156 AU

Eccentricity

0.000

Inclination

61.66 °

Year Length

A year here lasts roughly 16.6 hours long on a nearly circular orbit at a mean orbital distance of 0.0156 AU.

Transit Fingerprint

Depth

0.006 %

Duration

1.082 h

Impact parameter b

0.259

Rp / R★

0.007333

Transit midpoint (BJD)

2,454,964.8001

Photometric dip

Transit produces a flux drop of 61 ppm lasting ≈ 1.08 h.

Extended Orbital Architecture

Planet / star radius ratio

0.007333

Semi-major axis / stellar radius

4.803

Impact parameter (b)

0.259

Transit mid-time (BJD)

2,454,964.8001

Angular separation (arcsec)

0.02310

Eq. Temperature

3,186K

(2913 °C)

Insolation (S⊕)

5,760.94

Earth = 1.00

Earth Similarity (ESI)

0.079

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-1547

Spectral Class

F-type yellow-white

Effective Temperature

6,078 K — hotter than the Sun (5,778 K)

Estimated Age

3.39 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.180 R☉

Stellar Mass

1.120 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.340 dex

Stellar density

0.600 g/cm³

Metallicity ratio

[Fe/H]

Distance

674.70 parsec

Light-years 2,200.56 ly

V-band magnitude

13.46 mag

Voyager-speed travel 38,806,842 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.453 mas

Total Proper Motion

9.399 mas/yr

PM Right Ascension

-3.53 mas/yr

PM Declination

-8.71 mas/yr

Galactic Cartesian (pc)

x = 0.176 · y = -0.719 · z = 0.672

Equatorial (J2000)

RA 283.76404° · Dec 42.22210°

Galactic ℓ, b

72.109° · 17.219°

Ecliptic λ, β

294.165° · 64.511°

HTM-20 index

1576807928