Key parameters at a glance

A radius of 1.91 Earth radii
A mass of 4.31 Earth masses
Surface gravity around 1.18 g
An orbital period of 16.296 days
Semi-major axis 0.1230 AU
Equilibrium temperature 678 K (405 °C)
Distance from Earth 3,612.18 light-years
Earth Similarity Index 0.412
Travel time at Voyager 1 speed 63,700,750 years

Kepler-1306 b Planet Profile

Physical Specs

Radius

1.91 R⊕

Radius (Jupiter)

0.170 R♃

Mass

4.31 M⊕

Mass (Jupiter)

0.014 M♃

Density

3.40 g/cm³

Surface Gravity

1.18 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.412

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

#114of 1176

top 9.6%

This planet

1.91R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-1121 b 1.91 R⊕ Kepler-524 b 1.91 R⊕ Kepler-753 b 1.91 R⊕

Metric	Earth	Kepler-1306 b	Jupiter
Radius (R⊕)	1.00	1.91	11.21
Mass (M⊕)	1.00	4.31	317.83
Density (g/cm³)	5.51	3.40	1.33
Surface Gravity (g)	1.00	1.18	2.53
Insolation (S⊕)	1.00	52.15	0.037

Star Catalogue Identifiers

TIC

TIC 271040328

Gaia DR2

Gaia DR2 2128533466317652224

Gaia DR3

Gaia DR3 2128533466317652224

System

Kepler-1306

Percentile among Super-Earth cohort

Radius 1.910 R⊕ · percentile 90 / cohort 1176

Mass 4.310 M⊕ · percentile 83 / cohort 1176

Orbital period 16.30 d · percentile 80 / cohort 1164

Distance 1,107.50 pc · percentile 86 / cohort 1171

ESI 0.412 · percentile 62 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

16.296 days

Semi-major axis

0.1230 AU

Eccentricity

0.000

Inclination

89.79 °

Year Length

A year here lasts approximately 16.30 Earth days (4.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1230 AU.

Transit Fingerprint

Depth

0.037 %

Duration

2.129 h

Impact parameter b

0.092

Rp / R★

0.018477

Transit midpoint (BJD)

2,454,966.9093

Photometric dip

Transit produces a flux drop of 370 ppm lasting ≈ 2.13 h.

Extended Orbital Architecture

Planet / star radius ratio

0.018477

Semi-major axis / stellar radius

59.320

Impact parameter (b)

0.092

Transit mid-time (BJD)

2,454,966.9093

Angular separation (arcsec)

0.11100

Eq. Temperature

678K

(405 °C)

Insolation (S⊕)

52.15

Earth = 1.00

Earth Similarity (ESI)

0.412

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-1306

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,727 K — cooler than the Sun (5,778 K)

Estimated Age

4.57 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.970 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

0.00

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

14.866 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,107.50 parsec

Light-years 3,612.18 ly

V-band magnitude

15.35 mag

Voyager-speed travel 63,700,750 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.875 mas

Total Proper Motion

4.590 mas/yr

PM Right Ascension

4.07 mas/yr

PM Declination

2.12 mas/yr

Galactic Cartesian (pc)

x = 0.283 · y = -0.621 · z = 0.731

Equatorial (J2000)

RA 294.47836° · Dec 46.94586°

Galactic ℓ, b

79.769° · 12.171°

Ecliptic λ, β

315.350° · 66.572°

HTM-20 index

-1116111975