Key parameters at a glance

A radius of 1.55 Earth radii
A mass of 3.02 Earth masses
Surface gravity around 1.26 g
An orbital period of 31.175 days
Semi-major axis 0.1798 AU
Equilibrium temperature 585 K (312 °C)
Distance from Earth 2,061.14 light-years
Earth Similarity Index 0.509
Travel time at Voyager 1 speed 36,348,194 years

Kepler-1466 b Planet Profile

Physical Specs

Radius

1.55 R⊕

Radius (Jupiter)

0.138 R♃

Mass

3.02 M⊕

Mass (Jupiter)

0.010 M♃

Density

4.46 g/cm³

Surface Gravity

1.26 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.509

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

#652of 1176

top 55.4%

This planet

1.55R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-55 e 1.55 R⊕ Kepler-132 d 1.55 R⊕ Kepler-226 b 1.55 R⊕

Metric	Earth	Kepler-1466 b	Jupiter
Radius (R⊕)	1.00	1.55	11.21
Mass (M⊕)	1.00	3.02	317.83
Density (g/cm³)	5.51	4.46	1.33
Surface Gravity (g)	1.00	1.26	2.53
Insolation (S⊕)	1.00	21.88	0.037

Star Catalogue Identifiers

TIC

TIC 159178000

Gaia DR2

Gaia DR2 2126944603296783232

Gaia DR3

Gaia DR3 2126944603296783232

System

Kepler-1466

Percentile among Super-Earth cohort

Radius 1.550 R⊕ · percentile 43 / cohort 1176

Mass 3.020 M⊕ · percentile 39 / cohort 1176

Orbital period 31.18 d · percentile 92 / cohort 1164

Distance 631.95 pc · percentile 57 / cohort 1171

ESI 0.509 · percentile 74 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

31.175 days

Semi-major axis

0.1798 AU

Eccentricity

0.000

Inclination

89.99 °

Year Length

A year here lasts approximately 31.18 Earth days (8.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1798 AU.

Transit Fingerprint

Depth

0.020 %

Duration

3.968 h

Impact parameter b

0.016

Rp / R★

0.013688

Transit midpoint (BJD)

2,454,992.0953

Photometric dip

Transit produces a flux drop of 200 ppm lasting ≈ 3.97 h.

Extended Orbital Architecture

Planet / star radius ratio

0.013688

Semi-major axis / stellar radius

63.650

Impact parameter (b)

0.016

Transit mid-time (BJD)

2,454,992.0953

Angular separation (arcsec)

0.28500

Eq. Temperature

585K

(312 °C)

Insolation (S⊕)

21.88

Earth = 1.00

Earth Similarity (ESI)

0.509

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-1466

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,884 K — hotter than the Sun (5,778 K)

Estimated Age

3.89 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.020 R☉

Stellar Mass

1.010 M☉

Metallicity [Fe/H]

-0.07

Extended Stellar Properties

Surface gravity (log g)

4.430 dex

Stellar density

0.940 g/cm³

Metallicity ratio

[Fe/H]

Distance

631.95 parsec

Light-years 2,061.14 ly

V-band magnitude

14.03 mag

Voyager-speed travel 36,348,194 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.554 mas

Total Proper Motion

8.192 mas/yr

PM Right Ascension

7.40 mas/yr

PM Declination

-3.52 mas/yr

Galactic Cartesian (pc)

x = 0.242 · y = -0.670 · z = 0.702

Equatorial (J2000)

RA 289.83124° · Dec 44.60984°

Galactic ℓ, b

76.168° · 14.083°

Ecliptic λ, β

305.779° · 65.604°

HTM-20 index

1478748138