Key parameters at a glance

A radius of 1.00 Earth radii
A mass of 0.97 Earth masses
Surface gravity around 0.97 g
An orbital period of 20.351 days
Semi-major axis 0.1406 AU
Equilibrium temperature 695 K (422 °C)
Distance from Earth 3,234.96 light-years
Earth Similarity Index 0.472
Travel time at Voyager 1 speed 57,048,551 years

Kepler-1417 b Planet Profile

Physical Specs

Radius

1.00 R⊕

Radius (Jupiter)

0.089 R♃

Mass

0.97 M⊕

Mass (Jupiter)

0.003 M♃

Density

5.34 g/cm³

Surface Gravity

0.97 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.472

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

#335of 570

top 58.6%

This planet

1.00R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

K2-239 c 1.00 R⊕ Kepler-1464 c 1.00 R⊕ Kepler-392 b 1.00 R⊕

Metric	Earth	Kepler-1417 b	Jupiter
Radius (R⊕)	1.00	1.00	11.21
Mass (M⊕)	1.00	0.97	317.83
Density (g/cm³)	5.51	5.34	1.33
Surface Gravity (g)	1.00	0.97	2.53
Insolation (S⊕)	1.00	114.33	0.037

Star Catalogue Identifiers

TIC

TIC 122707371

Gaia DR2

Gaia DR2 2101513139864999424

Gaia DR3

Gaia DR3 2101513139864999424

System

Kepler-1417

Percentile among Rocky Terrestrial cohort

Radius 1.000 R⊕ · percentile 40 / cohort 570

Mass 0.972 M⊕ · percentile 36 / cohort 570

Orbital period 20.35 d · percentile 92 / cohort 567

Distance 991.85 pc · percentile 94 / cohort 566

ESI 0.472 · percentile 68 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

20.351 days

Semi-major axis

0.1406 AU

Eccentricity

0.000

Inclination

89.48 °

Year Length

A year here lasts approximately 20.35 Earth days (5.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1406 AU.

Transit Fingerprint

Depth

0.010 %

Duration

7.316 h

Impact parameter b

0.192

Rp / R★

0.009155

Transit midpoint (BJD)

2,454,975.7564

Photometric dip

Transit produces a flux drop of 102 ppm lasting ≈ 7.32 h.

Extended Orbital Architecture

Planet / star radius ratio

0.009155

Semi-major axis / stellar radius

21.330

Impact parameter (b)

0.192

Transit mid-time (BJD)

2,454,975.7564

Angular separation (arcsec)

0.14200

Eq. Temperature

695K

(422 °C)

Insolation (S⊕)

114.33

Earth = 1.00

Earth Similarity (ESI)

0.472

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-1417

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,839 K — hotter than the Sun (5,778 K)

Estimated Age

4.07 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.020 R☉

Stellar Mass

1.020 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.430 dex

Stellar density

0.250 g/cm³

Metallicity ratio

[Fe/H]

Distance

991.85 parsec

Light-years 3,234.96 ly

V-band magnitude

14.04 mag

Voyager-speed travel 57,048,551 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.980 mas

Total Proper Motion

4.539 mas/yr

PM Right Ascension

-1.28 mas/yr

PM Declination

-4.36 mas/yr

Galactic Cartesian (pc)

x = 0.271 · y = -0.709 · z = 0.651

Equatorial (J2000)

RA 290.94990° · Dec 40.60520°

Galactic ℓ, b

72.809° · 11.635°

Ecliptic λ, β

304.724° · 61.542°

HTM-20 index

1356687020